# lynx - a general purpose distributed information browser for ... - man(1) - [phpMan] > **TLDR:** Command-line web browser. > - Visit a website: `lynx {{example.com}}` - Apply restrictions for anonymous account: `lynx -anonymous {{example.com}}` - Turn on mouse support, if available: `lynx -use_mouse {{example.com}}` - Force color mode on, if available: `lynx -color {{example.com}}` - Open a link, using a specific file to read and write cookies: `lynx -cookie_file={{path/to/file}} {{example.com}}` - Navigate forwards and backwards through the links on a page: `{{|}}` - Go back to the previously displayed page: `{{|}}` - Exit: `` *Source: tldr-pages* --- [_LYNX_(1)](https://www.chedong.com/phpMan.php/man/LYNX/1/markdown) Lynx – the _text_ web browser [_LYNX_(1)](https://www.chedong.com/phpMan.php/man/LYNX/1/markdown) ## NAME lynx - a general purpose distributed information browser for the World Wide Web ## SYNOPSIS **lynx _**[options]_ _[optional_ _paths_ _or_ _URLs]_ **lynx _**[options]_ _[path_ _or_ _URL]_ **-get_data** _data_ **--** **lynx _**[options]_ _[path_ _or_ _URL]_ **-post_data** _data_ **--** Use “lynx -help” to display a complete list of current options. ## DESCRIPTION _Lynx_ is a fully-featured World Wide Web (WWW) client for users running cursor-addressable, character-cell display devices (e.g., vt100 terminals, vt100 emulators running on Windows or any POSIX platform, or any other “curses-oriented” display). It will display hypertext markup language (HTML) documents containing links to files residing on the local system, as well as files residing on remote systems running Gopher, HTTP, FTP, WAIS, and NNTP servers. _Lynx_ has been ported to many systems, including all variants of Unix, Windows (since Windows 95), DOS DJGPP and OS/2, as well as VMS and OS/390. _Lynx_ can be used to access information on the World Wide Web, or to build information systems intended primarily for local access. For example, _Lynx_ has been used to build several Campus Wide Information Systems (CWIS). In addition, _Lynx_ can be used to build systems isolated within a single LAN. ## OPTIONS At start up, _Lynx_ will load any local file or remote URL specified at the command line. For help with URLs, press “**?**” or “**H**” while running _Lynx_. Then follow the link titled, “Help on URLs.” If more than one local file or remote URL is listed on the command line, _Lynx_ will open only the last interactively. All of the names (local files and remote URLs) are added to the **G)oto **history. _Lynx_ uses only long option names. Option names can begin with double dash “--” as well, underscores and dashes can be intermixed in option names (in the reference below, options are shown with one dash “-” before them, and with underscores “_”). _Lynx_ provides many command-line options. Some options require a value (string, number or keyword). These are noted in the reference below. The other options set boolean values in the program. There are three types of boolean options: set, unset and toggle. If no option value is given, these have the obvious meaning: set (to true), unset (to false), or toggle (between true/false). For any of these, an explicit value can be given in different forms to allow for operating system constraints, e.g., **-center:off** **-center=off** **-center-** _Lynx_ recognizes “1”, “+”, “on” and “true” for true values, and “0”, “-”, “off” and “false” for false values. Other option-values are ignored. The default boolean, number and string option values that are compiled into _Lynx_ are displayed in the help-message provided by **lynx -help**. Some of those may differ according to how _Lynx_ was built; see the help message itself for these values. The **-help **option is processed in the third pass of options-processing, so any option which sets a value, as well as runtime configuration values are reflected in the help-message. **- **If the argument is only “-”, then _Lynx_ expects to receive the arguments from the standard input. This is to allow for the potentially very long command line that can be associated with the **-get_data **or **-post_data **arguments (see below). It can also be used to avoid having sensitive information in the invoking command line (which would be visible to other processes on most systems), especially when the **-auth **or **-pauth** options are used. ### -accept_all_cookies accept all cookies. ### -anonymous apply restrictions for anonymous account, see also **-restrictions**. ### -assume_charset charset for documents that do not specify it. ### -assume_local_charset charset assumed for local files, i.e., files which _Lynx_ creates such as internal pages for the options menu. ### -assume_unrec_charset use this instead of unrecognized charsets. ### -auth set authorization ID and password for protected documents at startup. Be sure to protect any script files which use this switch. ### -base -source ### -bibhost specify a local bibp server (default ). ### -blink the terminal. This applies to the **slang **library (for a few terminal emulators), or to OS/2 EMX with **ncurses**. ### -book still set for the Main screen command, and will be used if the bookmark page is unavailable or blank. ### -buried_news toggles scanning of news articles for buried references, and converts them to news links. Not recommended because email addresses enclosed in angle brackets will be converted to false news links, and uuencoded messages can be trashed. ### -cache set the NUMBER of documents cached in memory. The default is 10. ### -case ### -center toggles center alignment in HTML TABLE. Normally table cells are centered on the table grid. Set this option “on” to disable centering. The default is “off”. ### -cfg specifies a _Lynx_ configuration file other than the default lynx.cfg. ### -child options. ### -child_relaxed exit on left-arrow in startfile, but allow save to disk and associated print/mail options. ### -cmd_log write keystroke commands and related information to the specified file. ### -cmd_script read keystroke commands from the specified file. You can use the data written using the **-cmd_log **option. _Lynx_ will ignore other information which the command-logging may have written to the logfile. Each line of the command script contains either a comment beginning with “#”, or a keyword: **exit** causes the script to stop, and forces _Lynx_ to exit immediately. **key** the character value, in printable form. Cursor and other special keys are given as names, e.g., “Down Arrow”. Printable 7-bit ASCII codes are given as-is, and hexadecimal values represent other 8-bit codes. **set** followed by a “name=value” allows one to override values set in the lynx.cfg or .lynxrc files. _Lynx_ tries the cfg-file setting first. ### -collapse_br_tags toggles collapsing of BR tags. ### -color many terminal types are assumed if the terminal capability description does not specify how to handle color. _Lynx_ needs to be compiled with the **slang **library for this flag, it is equivalent to setting the **COLORTERM **environment variable. (If color support is instead provided by a color-capable curses library like **ncurses**, _Lynx_ relies completely on the terminal description to determine whether color mode is possible, and this flag is not needed and thus unavailable.) A saved show_color=always setting found in a .lynxrc file at startup has the same effect. A saved show_color=never found in .lynxrc on startup is overridden by this flag. ### -connect_timeout Sets the connection timeout, where N is given in seconds. ### -cookie_file specifies a file to use to read cookies. If none is specified, the default value is ~/.lynx_cookies for most systems, but ~/cookies for MS-DOS. ### -cookie_save_file specifies a file to use to store cookies. If none is specified, the value given by **-cookie_file **is used. ### -cookies toggles handling of Set-Cookie headers. ### -core a core dump if a fatal error occurs. ### -crawl -traversal, -dump **-traversal**, but to the standard output. ### -curses_pads toggles the use of curses “pad” feature which supports left/right scrolling of the display. The feature is normally available for curses configurations, but inactive. To activate it, use the “|” character or the LINEWRAP_TOGGLE command. Toggling this option makes the feature altogether unavailable. ### -debug_partial separate incremental display stages with MessageSecs delay ### -default_colors toggles the default-colors feature which is normally set in the lynx.cfg file. ### -delay ### -display set the display variable for X rexec-ed programs. ### -display_charset set the charset for the terminal output. ### -dont_wrap_pre inhibit wrapping of text when **-dump**'ing and **-crawl**'ing, mark wrapped lines of 
 in
              interactive session.

### -dump  
              line  to standard output.  Unlike interactive mode, all documents are processed.  This
              can be used in the following way:

                  lynx **-dump **

              Files specified on the command line are formatted as HTML if their names end with  one
              of the standard web suffixes such as “.htm” or “.html”.  Use the **-force_html **option to
              format files whose names do not follow this convention.

### -editor
              enable external editing, using the specified EDITOR.  (vi, ed, emacs, etc.)

### -emacskeys
              enable emacs-like key movement.

### -enable_scrollback
              toggles   compatibility   with   communication   programs'  scrollback  keys  (may  be
              incompatible with some curses packages).

### -error_file
              define a file where _Lynx_ will report HTTP access codes.

### -exec  

### -fileversions
              include all versions of files in local VMS directory listings.

### -find_leaks
              toggle memory leak-checking.  Normally this is not compiled-into your executable,  but
              when it is, it can be disabled for a session.

### -force_empty_hrefless_a
              force HREF-less “A” elements to be empty (close them as soon as they are seen).

### -force_html
              forces the first document to be interpreted as HTML.

              This  is most useful when processing files specified on the command line which have an
              unrecognized suffix (or the suffix is associated with a non-HTML type, such as  “.txt”
              for plain text files).

              _Lynx_ recognizes these file suffixes as HTML:

                  “.ht3”,
                  “.htm”,
                  “.html3”,
                  “.html”,
                  “.htmlx”,
                  “.php3”,
                  “.php”,
                  “.phtml”,
                  “.sht”, and
                  “.shtml”.

### -force_secure
              toggles forcing of the secure flag for SSL cookies.

### -forms_options
              toggles whether the Options Menu is key-based or form-based.

### -from  

### -ftp   

### -get_data
              properly  formatted data for a _get_ form are read in from the standard input and passed
              to the form.  Input is terminated by a line that starts with “---”.

              _Lynx_ issues an HTTP **GET**, sending the form to the path or URL given on the command-line
              and prints the response of the server.  If no path or URL is  given,  _Lynx_  sends  the
              form to the start-page.

### -head  

### -help  

### -hiddenlinks=[option]
              control the display of hidden links.

              **merge**
                 hidden  links  show  up  as  bracketed numbers and are numbered together with other
                 links in the sequence of their occurrence in the document.

              **listonly**
                 hidden links are shown only on **L)ist **screens and listings  generated  by  **-dump  **or
                 from the **P)rint **menu, but appear separately at the end of those lists.  This is the
                 default behavior.

              **ignore**
                 hidden links do not appear even in listings.

### -historical
              toggles use of “>” or “-->” as a terminator for comments.

### -homepage
              set homepage separate from start page.

### -image_links
              toggles inclusion of links for all images.

### -index
              set the default index file to the specified URL.

### -ismap 

### -justify
              do justification of text.

### -link
              starting count for lnk#.dat files produced by **-crawl**.

### -list_decoded
              for **-dump**, show URL-encoded links decoded.

### -list_inline
              for **-dump**, show the links inline with the text.

### -listonly
              for **-dump**, show only the list of links.

### -localhost
              disable URLs that point to remote hosts.

### -locexec
              enable  local program execution from local files only (if _Lynx_ was compiled with local
              execution enabled).

### -lss
              specify filename containing color-style information.  The default is lynx.lss.  If you
              give an empty filename, _Lynx_ uses a built-in monochrome scheme which imitates the non-
              color-style configuration.

### -mime_header
              prints the MIME header of a fetched document along with its source.

### -minimal
              toggles minimal versus valid comment parsing.

### -nested_tables
              toggles nested-tables logic (for debugging).

### -newschunksize
              number of articles in chunked news listings.

### -newsmaxchunk
              maximum news articles in listings before chunking.

### -nobold
              disable bold video-attribute.

### -nobrowse
              disable directory browsing.

### -nocc  
              CCs which are incorporated within a mailto URL or form ACTION.

### -nocolor
              force color mode off, overriding terminal capabilities and any -color flags, COLORTERM
              variable, and saved .lynxrc settings.

### -noexec
              disable local program execution.  (DEFAULT)

### -nofilereferer
              disable transmissions of Referer headers for file URLs.

### -nolist
              disable the link list feature in dumps.

### -nolog 

### -nomargins
              disable left/right margins in the default style sheet.

### -nomore
              disable -more- string in statusline messages.

### -nonrestarting_sigwinch
              This  flag  is  not  available  on  all  systems,  _Lynx_  needs  to  be  compiled  with
              HAVE_SIGACTION defined.  If  available,  this  flag  _may_  cause  _Lynx_  to  react  more
              immediately to window changes when run within an **xterm**.

### -nonumbers
              disable link- and field-numbering.  This overrides **-number_fields **and **-number_links**.

### -nopause
              disable forced pauses for statusline messages.

### -noprint
              disable most print functions.

### -noredir
              prevents automatic redirection and prints a message with a link to the new URL.

### -noreferer
              disable transmissions of Referer headers.

### -noreverse
              disable reverse video-attribute.

### -nosocks
              disable SOCKS proxy usage by a SOCKSified _Lynx_.

### -nostatus
              disable the retrieval status messages.

### -notitle
              disable title and blank line from top of page.

### -nounderline
              disable underline video-attribute.

### -number_fields
              force numbering of links as well as form input fields

### -number_links
              force numbering of links.

### -partial
              toggles display partial pages while loading.

### -partial_thres
              number of lines to render before repainting display with partial-display logic

### -passive_ftp
              toggles passive ftp connections.

### -pauth
              set authorization ID and password for a protected proxy server at startup.  Be sure to
              protect any script files which use this switch.

### -popup 
              radio buttons.

### -post_data
              properly formatted data for a _post_ form are read in from the standard input and passed
              to the form.  Input is terminated by a line that starts with “---”.

              _Lynx_ issues an HTTP **POST**, sending the form to the path or URL given  on  the  command-
              line  and  prints  the response of the server.  If no path or URL is given, _Lynx_ sends
              the form to the start-page.

### -preparsed
              show HTML source preparsed and reformatted when used with **-source **or in source view.

### -prettysrc
              show HTML source view with lexical elements and tags in color.

### -print 

### -pseudo_inlines
              toggles pseudo-ALTs for inline images with no ALT string.

### -raw   
              character set.

### -realm 

### -read_timeout
              Sets the read-timeout, where N is given in seconds.

### -reload
              flushes the cache on a proxy server (only the first document given on the command-line
              is affected).

### -restrictions
              allows  a  list  of  services  to  be disabled selectively.  Dashes and underscores in
              option names can be intermixed.  The following list  is  printed  if  no  options  are
              specified.

              **all**
                 restricts all options listed below.

              **bookmark**
                 disallow changing the location of the bookmark file.

              **bookmark_exec**
                 disallow execution links via the bookmark file.

              **change_exec_perms**
                 disallow  changing  the  eXecute  permission  on  files  (but  still  allow  it for
                 directories) when local file management is enabled.

              **default**
                 same as command line option **-anonymous**.  Disables default  services  for  anonymous
                 users.    Set   to  all  restricted,  except  for:  inside_telnet,  outside_telnet,
                 inside_ftp, outside_ftp, inside_rlogin, outside_rlogin, inside_news,  outside_news,
                 telnet_port, jump, mail, print, exec, and goto.  The settings for these, as well as
                 additional  goto  restrictions  for specific URL schemes that are also applied, are
                 derived from definitions within userdefs.h.

              **dired_support**
                 disallow local file management.

              **disk_save**
                 disallow saving to disk in the download and print menus.

              **dotfiles**
                 disallow access to, or creation of, hidden (dot) files.

              **download**
                 disallow  some  downloaders  in  the  download  menu  (does  not  imply   disk_save
                 restriction).

              **editor**
                 disallow external editing.

              **exec**
                 disable execution scripts.

              **exec_frozen**
                 disallow the user from changing the local execution option.

              **externals**
                 disallow  some  “EXTERNAL”  configuration  lines  if  support  for  passing URLs to
                 external applications (with the EXTERN command) is compiled in.

              **file_url**
                 disallow using **G)oto**, served links or bookmarks for file: URLs.

              **goto**
                 disable the “g” (goto) command.

              **inside_ftp**
                 disallow ftps for  people  coming  from  inside  your  domain  (utmp  required  for
                 selectivity).

              **inside_news**
                 disallow  USENET  news  posting  for  people  coming  from inside your domain (utmp
                 required for selectivity).

              **inside_rlogin**
                 disallow rlogins for people coming from  inside  your  domain  (utmp  required  for
                 selectivity).

              **inside_telnet**
                 disallow  telnets  for  people  coming  from  inside your domain (utmp required for
                 selectivity).

              **jump**
                 disable the “j” (jump) command.

              **multibook**
                 disallow multiple bookmarks.

              **mail**
                 disallow mail.

              **news_post**
                 disallow USENET News posting.

              **options_save**
                 disallow saving options in .lynxrc.

              **outside_ftp**
                 disallow ftps for people  coming  from  outside  your  domain  (utmp  required  for
                 selectivity).

              **outside_news**
                 disallow USENET news reading and posting for people coming from outside your domain
                 (utmp  required  for  selectivity).   This  restriction  applies to “news”, “nntp”,
                 “newspost”, and “newsreply” URLs, but not to “snews”, “snewspost”, or  “snewsreply”
                 in case they are supported.

              **outside_rlogin**
                 disallow  rlogins  for  people  coming  from outside your domain (utmp required for
                 selectivity).

              **outside_telnet**
                 disallow telnets for people coming from outside  your  domain  (utmp  required  for
                 selectivity).

              **print**
                 disallow most print options.

              **shell**
                 disallow shell escapes and lynxexec or lynxprog **G)oto**'s.

              **suspend**
                 disallow Unix Control-Z suspends with escape to shell.

              **telnet_port**
                 disallow specifying a port in telnet **G)oto**'s.

              **useragent**
                 disallow modifications of the User-Agent header.

### -resubmit_posts
              toggles  forced  resubmissions (no-cache) of forms with method POST when the documents
              they returned are sought with the PREV_DOC command or from the History List.

### -rlogin
              disable recognition of rlogin commands.

### -scrollbar
              toggles showing scrollbar.

### -scrollbar_arrow
              toggles showing arrows at ends of the scrollbar.

### -selective
              require .www_browsable files to browse directories.

### -session
              resumes from specified file on startup and saves session to that file on exit.

### -sessionin
              resumes session from specified file.

### -sessionout
              saves session to specified file.

### -short_url
              show very long URLs in the status line with  “...”  to  represent  the  portion  which
              cannot  be  displayed.   The  beginning  and end of the URL are displayed, rather than
              suppressing the end.

### -show_cfg
              Print the configuration settings, e.g., as read from “lynx.cfg”, and exit.

### -show_cursor
              If enabled the cursor will not be hidden in the right hand corner but will instead  be
              positioned  at  the  start of the currently selected link.  Show cursor is the default
              for systems without FANCY_CURSES  capabilities.   The  default  configuration  can  be
              changed in userdefs.h or lynx.cfg.  The command line switch toggles the default.

### -show_rate
              If  enabled the transfer rate is shown in bytes/second.  If disabled, no transfer rate
              is shown.  Use lynx.cfg or the options menu to select KB/second and/or ETA.

### -socks5_proxy=URL
              (Via  which)  SOCKS5  proxy  to  connect:  any  network  traffic,  including  all  DNS
              resolutions  but  the one for URL itself, will be redirected through the SOCKS5 proxy.
              URL may be given as “proxy.example.com”, “proxy.example.com:1080”,  “192.168.0.1”,  or
              “192.168.0.1:1080”  (and  IPv6  notation if so supported).  A SOCKS5 proxy may also be
              specified via the environment variable **SOCKS5_PROXY.  **This option controls the builtin
              SOCKS5 support, which is unrelated to the option **-nosocks**.

### -soft_dquotes
              toggles emulation of the old Netscape and Mosaic  bug  which  treated  “>”  as  a  co-
              terminator for double-quotes and tags.

### -source
              works the same as dump but outputs HTML source instead of formatted text.  For example

                  lynx -source . >foo.html

              generates HTML source listing the files in the current directory.  Each file is marked
              by  an HREF relative to the parent directory.  Add a trailing slash to make the HREF's
              relative to the current directory:

                  lynx -source ./ >foo.html

### -stack_dump
              disable SIGINT cleanup handler

### -startfile_ok
              allow non-http startfile and homepage with **-validate**.

### -stderr
              When dumping a document using **-dump **or **-source**, _Lynx_ normally does not  display  alert
              (error)  messages  that  you  see  on  the screen in the status line.  Use the **-stderr**
              option to tell _Lynx_ to write these messages to the standard error.

### -stdin 

### -syslog
              information for syslog call.

### -syslog_urls
              log requested URLs with syslog.

### -tagsoup
              initialize parser, using Tag Soup DTD rather than SortaSGML.

### -telnet
              disable recognition of telnet commands.

### -term
              tell _Lynx_ what terminal type to assume it is talking to.   (This  may  be  useful  for
              remote execution, when, for example, _Lynx_ connects to a remote TCP/IP port that starts
              a script that, in turn, starts another _Lynx_ process.)

### -timeout
              For win32, sets the network read-timeout, where N is given in seconds.

### -tlog  

### -tna   

### -trace 

### -trace_mask
              turn on optional traces, which may result in very large trace files.  Logically OR the
              values to combine options:

              **1  **SGML character parsing states

              **2  **color-style

              **4  **TRST (table layout)

              **8  **configuration (lynx.cfg, .lynxrc, .lynx-keymaps, mime.types and mailcap contents)

              **16 **binary string copy/append, used in form data construction.

              **32 **cookies

              **64 **character sets

              **128**
                 GridText parsing

              **256**
                 timing

              **512**
                 detailed URL parsing

### -traversal
              traverse all http links derived from startfile.  When used with **-crawl**, each link that
              begins with the same string as startfile is output to a file, intended for indexing.

              See CRAWL.announce for more information.

### -trim_blank_lines
              toggles  trimming  of  trailing  blank  lines as well as the related trimming of blank
              lines while collapsing BR tags.

### -trim_input_fields
              trim input text/textarea fields in forms.

### -underline_links
              toggles use of underline/bold attribute for links.

### -underscore
              toggles use of _underline_ format in dumps.

### -unique_urls
              check for duplicate link numbers in each page and corresponding lists, and  reuse  the
              original link number.

### -update_term_title
              enables  updating the title in terminal emulators.  Use only if your terminal emulator
              supports that escape code.  Has no effect when used with **-notitle**.

### -use_mouse
              turn on mouse support, if available.   Clicking  the  left  mouse  button  on  a  link
              traverses  it.   Clicking  the right mouse button pops back.  Click on the top line to
              scroll up.  Click on the bottom line to scroll down.  The first few positions  in  the
              top  and  bottom  line  may  invoke  additional functions.  _Lynx_ must be compiled with
              **ncurses **or **slang **to support this feature.  If **ncurses **is  used,  clicking  the  middle
              mouse button pops up a simple menu.  Mouse clicks may only work reliably while _Lynx_ is
              idle waiting for input.

### -useragent=Name
              set alternate _Lynx_ User-Agent header.

### -validate
              accept  only  http  URLs  (for  validation).   Complete security restrictions also are
              implemented.

### -verbose
              toggle [LINK], [IMAGE] and [INLINE] comments with filenames of these images.

### -version
              print version information, and exit.

### -vikeys
              enable vi-like key movement.

### -wdebug
              enable Waterloo tcp/ip packet debug (print to watt debugfile).  This applies  only  to
              DOS versions compiled with WATTCP or WATT-32.

### -width
              number  of  columns  for  formatting  of dumps, default is 80.  This is limited by the
              number of columns that _Lynx_ could display, typically 1024 (the _MAX_LINE_ symbol).

### -with_backspaces
              emit backspaces in output if **-dump**'ing or **-crawl**'ing (like **man **does)

### -xhtml_parsing
              tells _Lynx_ that it can ignore certain tags which have  no  content  in  an  XHTML  1.0
              document.  For example “
” will be discarded.

## COMMANDS
       More than one key can be mapped to a given command.  Here are some of the most useful:

       •   Use **Up arrow **and **Down arrow **to scroll through hypertext links.

       •   **Right arrow **or **Return **will follow a highlighted hypertext link.

       •   **Left Arrow **or “**u**” will retreat from a link.

       •   Type “**H**”, “**?**”, or **F1 **for online help and descriptions of key-stroke commands.

       •   Type “**k**” or “**K**” for a list of the current key-stroke command mappings.

           If  the  same command is mapped to the same letter differing only by upper/lowercase only
           the lowercase mapping is shown.

       •   Type **Delete **to view history list.

## ENVIRONMENT
       In addition to various “standard” environment variables such as **DISPLAY**, **HOME**,  **PATH**,  **SHELL**,
       **TMPDIR**, **USER**, etc., _Lynx_ utilizes several _Lynx_-specific environment variables, if they exist.

       Others  may  be created or modified by _Lynx_ to pass data to an external program, or for other
       reasons.  These are listed separately below.

       See also the sections on **SIMULATED CGI SUPPORT **and **NATIVE LANGUAGE SUPPORT**, below.

       Note:  Not all environment variables apply to all  types  of  platforms  supported  by  _Lynx_,
       though most do.  Feedback on platform dependencies is solicited.

       Environment Variables Used By _Lynx_:

       **COLORTERM           **If  set,  color capability for the terminal is forced on at startup time.
                           The actual value assigned to the variable is ignored.  This  variable  is
                           only  meaningful  if  _Lynx_  was  built  using  the  **slang **screen-handling
                           library.

       **LYNX_CFG            **This variable, if set, will override the default location and name of the
                           global configuration file (normally, **lynx.cfg**) that was  defined  by  the
                           LYNX_CFG_FILE constant in the userdefs.h file, during installation.

                           See the userdefs.h file for more information.

       **LYNX_CFG_PATH       **If   set,   this   variable  overrides  the  compiled-in  search-list  of
                           directories used to find the  configuration  files,  e.g.,  **lynx.cfg  **and
                           **lynx.lss**.   The  list is delimited with ":" (or ";" for Windows) like the
                           **PATH **environment variable.

       **LYNX_HELPFILE       **If set, this variable overrides the  compiled-in  URL  and  configuration
                           file URL for the _Lynx_ help file.

       **LYNX_LOCALEDIR      **If  set,  this  variable overrides the compiled-in location of the locale
                           directory which contains native language (NLS) message text.

       **LYNX_LSS            **This variable, if  set,  specifies  the  location  of  the  default  _Lynx_
                           character style sheet file.  [Currently only meaningful if _Lynx_ was built
                           using curses color style support.]

       **LYNX_SAVE_SPACE     **This  variable,  if  set, will override the default path prefix for files
                           saved to disk that is defined in the **lynx.cfg SAVE_SPACE: **statement.

                           See the **lynx.cfg **file for more information.

       **LYNX_TEMP_SPACE     **This variable,  if  set,  will  override  the  default  path  prefix  for
                           temporary  files  that  was  defined  during installation, as well as any
                           value that may be assigned to the **TMPDIR **variable.

       **MAIL                **This variable specifies the default inbox _Lynx_ will check for  new  mail,
                           if such checking is enabled in the **lynx.cfg **file.

       **NEWS_ORGANIZATION   **This  variable,  if  set,  provides  the string used in the **Organization:**
                           header of **USENET **news postings.  It will  override  the  setting  of  the
                           ORGANIZATION  environment  variable, if it is also set (and, on **UNIX**, the
                           contents of an /etc/organization file, if present).

       **NNTPSERVER          **If set, this variable specifies the default NNTP server that will be used
                           for **USENET **news reading and posting with _Lynx_, via news: URL's.

       **ORGANIZATION        **This variable, if set, provides the  string  used  in  the  **Organization:**
                           header  of  **USENET **news postings.  On **UNIX**, it will override the contents
                           of an /etc/organization file, if present.

       _PROTOCOL_**_proxy      _**Lynx_ supports the use of proxy servers that can act as firewall  gateways
                           and  caching  servers.   They are preferable to the older gateway servers
                           (see WWW_access_GATEWAY, below).

                           Each protocol used by _Lynx_, (http,  ftp,  gopher,  etc),  can  be  mapped
                           separately  by  setting environment variables of the form _PROTOCOL__proxy.
                           Protocols are indicated in a URI by the name before “:”, e.g., “http”  in
                           “” for HTML.

                           Depending  on  your  system  configuration  and  supported protocols, the
                           environment variables recognized by _lynx_ may include

                               cso_proxy
                               finger_proxy
                               ftp_proxy
                               gopher_proxy
                               http_proxy
                               https_proxy
                               news_proxy
                               newspost_proxy
                               newsreply_proxy
                               nntp_proxy
                               no_proxy
                               rlogin_proxy
                               snews_proxy
                               snewspost_proxy
                               snewsreply_proxy
                               telnet_proxy
                               tn3270_proxy
                               wais_proxy

                           See **Lynx Users Guide **for additional details and examples.

       **RL_CLCOPY_CMD       **Pipe the contents of the current link using this command as the target.

       **RL_PASTE_CMD        **Open a pipe to read from  this  command,  pasting  it  into  the  current
                           editable-field or command-prompt.

       **SOCKS5_PROXY        **Is inspected if **-socks5_proxy **has not been used (for the same content).

       **SSL_CERT_DIR        **Set to the directory containing trusted certificates.

       **SSL_CERT_FILE       **Set to the full path and filename for your file of trusted certificates.

       **WWW__**access_**_GATEWAY  _**Lynx_  still  supports  use of gateway servers, with the servers specified
                           via “WWW__access__GATEWAY” variables (where “_access_” is lower case and  can
                           be “http”, “ftp”, “gopher” or “wais”).  However most gateway servers have
                           been  discontinued.   Note  that  you  do  not include a terminal “/” for
                           gateways, but do for  proxies  specified  by  _PROTOCOL__proxy  environment
                           variables.

                           See **Lynx Users Guide **for details.

       **WWW_HOME            **This variable, if set, will override the default startup URL specified in
                           any of the _Lynx_ configuration files.

       Environment Variables **Set **or **Modified **By _Lynx_:

       **LYNX_PRINT_DATE     **This  variable  is  set by the _Lynx_ p(rint) function, to the **Date: **string
                           seen in the document's “**Information about**” page (= cmd), if any.   It  is
                           created for use by an external program, as defined in a **lynx.cfg PRINTER:**
                           definition  statement.  If the field does not exist for the document, the
                           variable is set to a null string under **UNIX**, or “No Date” under **VMS**.

       **LYNX_PRINT_LASTMOD  **This variable is set by the _Lynx_  p(rint)  function,  to  the  **Last  Mod:**
                           string  seen  in the document's “**Information about**” page (= cmd), if any.
                           It is created for use by an external program, as defined  in  a  **lynx.cfg**
                           **PRINTER:  **definition  statement.   If  the  field  does not exist for the
                           document, the variable is set  to  a  null  string  under  **UNIX**,  or  “No
                           LastMod” under **VMS**.

       **LYNX_PRINT_TITLE    **This  variable  is  set  by  the  _Lynx_ p(rint) function, to the **Linkname:**
                           string seen in the document's “**Information about**” page (= cmd),  if  any.
                           It  is  created  for use by an external program, as defined in a **lynx.cfg**
                           **PRINTER: **definition statement.  If the  field  does  not  exist  for  the
                           document,  the variable is set to a null string under **UNIX**, or “No Title”
                           under **VMS**.

       **LYNX_PRINT_URL      **This variable is set by the _Lynx_ p(rint) function,  to  the  **URL:  **string
                           seen  in  the document's “**Information about**” page (= cmd), if any.  It is
                           created for use by an external program, as defined in a **lynx.cfg PRINTER:**
                           definition statement.  If the field does not exist for the document,  the
                           variable is set to a null string under **UNIX**, or “No URL” under **VMS**.

       **LYNX_TRACE          **If  set,  causes  _Lynx_ to write a trace file as if the **-trace **option were
                           supplied.

       **LYNX_TRACE_FILE     **If set, overrides the compiled-in name of the trace file, which is either
                           **Lynx.trace **or **LY-TRACE.LOG **(the latter  on  the  DOS/Windows  platforms).
                           The trace file is in either case relative to the home directory.

       **LYNX_VERSION        **This  variable  is  always  set  by  _Lynx_, and may be used by an external
                           program to determine if it was invoked by _Lynx_.

                           See also the comments in the  distribution's  sample  **mailcap  **file,  for
                           notes on usage in such a file.

       **TERM                **Normally,  this  variable  is used by _Lynx_ to determine the terminal type
                           being used to invoke _Lynx_.  If, however, it is unset at startup time  (or
                           has  the  value  “unknown”),  or if the **-term **command-line option is used
                           (see **OPTIONS **section above), _Lynx_ will set or modify  its  value  to  the
                           user specified terminal type (for the _Lynx_ execution environment).  Note:
                           If  set/modified  by  _Lynx_,  the  values  of  the  **LINES  **and/or  **COLUMNS**
                           environment variables may also be changed.

### Simulated CGI Support
       If built with the **cgi-links **option enabled, _Lynx_ allows  access  to  a  cgi  script  directly
       without the need for an http daemon.

       When  executing  such  “lynxcgi scripts” (if enabled), the following variables may be set for
       simulating a CGI environment:

       **CONTENT_LENGTH**

       **CONTENT_TYPE**

       **DOCUMENT_ROOT**

       **HTTP_ACCEPT_CHARSET**

       **HTTP_ACCEPT_LANGUAGE**

       **HTTP_USER_AGENT**

       **PATH_INFO**

       **PATH_TRANSLATED**

       **QUERY_STRING**

       **REMOTE_ADDR**

       **REMOTE_HOST**

       **REQUEST_METHOD**

       **SERVER_SOFTWARE**

       Other environment variables are not inherited by the script, unless they are provided  via  a
       LYNXCGI_ENVIRONMENT  statement  in  the  configuration  file.  See the **lynx.cfg **file, and the
       (draft) CGI 1.1 Specification  <>  for
       the definition and usage of these variables.

       The  CGI  Specification,  and other associated documentation, should be consulted for general
       information on CGI script programming.

### Native Language Support
       If configured and installed with **Native Language Support**, _Lynx_ will display status and  other
       messages  in  your  local language.  See the file **ABOUT_NLS **in the source distribution, or at
       your local **GNU **site, for more information about internationalization.

       The following environment variables may be used to alter default settings:

       **LANG                **This variable, if set, will override the default message language.  It is
                           an **ISO 639 **two-letter code identifying the language.  Language codes  are
                           **NOT **the same as the country codes given in **ISO 3166**.

       **LANGUAGE            **This  variable, if set, will override the default message language.  This
                           is a **GNU **extension that has  higher  priority  for  setting  the  message
                           catalog than **LANG **or **LC_ALL**.

       **LC_ALL              **and

       **LC_MESSAGES         **These variables, if set, specify the notion of native language formatting
                           style.  They are **POSIXly **correct.

       **LINGUAS             **This  variable,  if  set  prior  to  configuration,  limits the installed
                           languages to specific values.  It is a space-separated list of two-letter
                           codes.  Currently, it is hard-coded to a wish list.

       **NLSPATH             **This variable, if set, is used as the path prefix for message catalogs.

## NOTES
### Mailing Lists
       If you wish to contribute to the further development of _Lynx_, subscribe to our mailing  list.
       Send email to <> with “subscribe lynx-dev” as the only line in the
       body of your message.

       Send bug reports, comments, suggestions to <> after subscribing.

       Unsubscribe  by sending email to <> with “unsubscribe lynx-dev” as
       the only line in the body of your message.  Do  not  send  the  unsubscribe  message  to  the
       lynx-dev list, itself.

### Acknowledgments
       _Lynx_ has incorporated code from a variety of sources along the way.  The earliest versions of
       _Lynx_  included  code from Earl Fogel of Computing Services at the University of Saskatchewan,
       who implemented HYPERREZ in the Unix environment.  HYPERREZ was developed by Niel  Larson  of
       Think.com  and  served  as  the  model  for  the early versions of _Lynx_.  Those versions also
       incorporated libraries from the Unix Gopher clients developed at the University of Minnesota,
       and the later versions of _Lynx_ rely on the WWW client library code developed by Tim  Berners-
       Lee  and the WWW community.  Also a special thanks to Foteos Macrides who ported much of _Lynx_
       to VMS and did or organized most of its development since the departures of Lou Montulli  and
       Garrett  Blythe  from  the  University of Kansas in the summer of 1994 through the release of
       v2.7.2, and to everyone on the net who has contributed to _Lynx_'s development either  directly
       (through patches, comments or bug reports) or indirectly (through inspiration and development
       of other systems).

## AUTHORS
       Lou Montulli, Garrett Blythe, Craig Lavender, Michael Grobe, Charles Rezac
       Academic Computing Services
       University of Kansas
       Lawrence, Kansas 66047

       Foteos Macrides
       Worcester Foundation for Biomedical Research
       Shrewsbury, Massachusetts 01545

       Thomas E. Dickey
       <>

## SEE ALSO
       [**catgets**(3)](https://www.chedong.com/phpMan.php/man/catgets/3/markdown),   [**curses**(3)](https://www.chedong.com/phpMan.php/man/curses/3/markdown),   [**environ**(7)](https://www.chedong.com/phpMan.php/man/environ/7/markdown),   [**ftp**(1)](https://www.chedong.com/phpMan.php/man/ftp/1/markdown),   **gettext**(GNU),  [**localeconv**(3)](https://www.chedong.com/phpMan.php/man/localeconv/3/markdown),  [**ncurses**(3)](https://www.chedong.com/phpMan.php/man/ncurses/3/markdown),
       [**setlocale**(3)](https://www.chedong.com/phpMan.php/man/setlocale/3/markdown), [**termcap**(5)](https://www.chedong.com/phpMan.php/man/termcap/5/markdown), [**terminfo**(5)](https://www.chedong.com/phpMan.php/man/terminfo/5/markdown)

Lynx 2.9.0                                   2024-01-14                                      [_LYNX_(1)](https://www.chedong.com/phpMan.php/man/LYNX/1/markdown)