{ "content": [ { "type": "text", "text": "# colcrt (man)\n\n## NAME\n\ncolcrt - filter nroff output for CRT previewing\n\n## SYNOPSIS\n\ncolcrt [options] [file ...]\n\n## DESCRIPTION\n\ncolcrt provides virtual half-line and reverse line feed sequences for terminals without such\ncapability, and on which overstriking is destructive. Half-line characters and underlining\n(changed to dashing `-') are placed on new lines in between the normal output lines.\n\n## Sections\n\n- **NAME**\n- **SYNOPSIS**\n- **DESCRIPTION**\n- **OPTIONS** (3 subsections)\n- **HISTORY**\n- **BUGS**\n- **EXAMPLES**\n- **SEE ALSO**\n- **REPORTING BUGS**\n- **AVAILABILITY**\n\nUse structuredContent.sections for detailed options, examples, and full documentation.\n" } ], "structuredContent": { "command": "colcrt", "section": "", "mode": "man", "summary": "colcrt - filter nroff output for CRT previewing", "synopsis": "colcrt [options] [file ...]", "tldr_summary": null, "tldr_examples": [], "tldr_source": null, "flags": [ { "flag": "-2", "long": "--half-lines", "arg": null, "description": "Causes all half-lines to be printed, effectively double spacing the output. Normally, a minimal space output format is used which will suppress empty lines. The program never suppresses two consecutive empty lines, however. The -2 option is useful for sending output to the line printer when the output contains superscripts and subscripts which would otherwise be invisible." }, { "flag": "-V", "long": "--version", "arg": null, "description": "Display version information and exit." }, { "flag": "-h", "long": "--help", "arg": null, "description": "Display help text and exit." } ], "examples": [ "A typical use of colcrt would be:", "tbl exum2.n | nroff -ms | colcrt - | more" ], "see_also": [ { "name": "col", "section": "1", "url": "https://www.chedong.com/phpMan.php/man/col/1/json" }, { "name": "more", "section": "1", "url": "https://www.chedong.com/phpMan.php/man/more/1/json" }, { "name": "nroff", "section": "1", "url": "https://www.chedong.com/phpMan.php/man/nroff/1/json" }, { "name": "troff", "section": "1", "url": "https://www.chedong.com/phpMan.php/man/troff/1/json" }, { "name": "ul", "section": "1", "url": "https://www.chedong.com/phpMan.php/man/ul/1/json" } ], "section_outline": [ { "name": "NAME", "lines": 2, "subsections": [] }, { "name": "SYNOPSIS", "lines": 2, "subsections": [] }, { "name": "DESCRIPTION", "lines": 4, "subsections": [] }, { "name": "OPTIONS", "lines": 4, "subsections": [ { "name": "-2 --half-lines", "lines": 6, "flag": "-2", "long": "--half-lines" }, { "name": "-V --version", "lines": 2, "flag": "-V", "long": "--version" }, { "name": "-h --help", "lines": 2, "flag": "-h", "long": "--help" } ] }, { "name": "HISTORY", "lines": 2, "subsections": [] }, { "name": "BUGS", "lines": 13, "subsections": [] }, { "name": "EXAMPLES", "lines": 4, "subsections": [] }, { "name": "SEE ALSO", "lines": 2, "subsections": [] }, { "name": "REPORTING BUGS", "lines": 2, "subsections": [] }, { "name": "AVAILABILITY", "lines": 6, "subsections": [] } ], "sections": { "NAME": { "content": "colcrt - filter nroff output for CRT previewing\n", "subsections": [] }, "SYNOPSIS": { "content": "colcrt [options] [file ...]\n", "subsections": [] }, "DESCRIPTION": { "content": "colcrt provides virtual half-line and reverse line feed sequences for terminals without such\ncapability, and on which overstriking is destructive. Half-line characters and underlining\n(changed to dashing `-') are placed on new lines in between the normal output lines.\n", "subsections": [] }, "OPTIONS": { "content": "-, --no-underlining\nSuppress all underlining. This option is especially useful for previewing allboxed tables\nfrom tbl(1).\n", "subsections": [ { "name": "-2 --half-lines", "content": "Causes all half-lines to be printed, effectively double spacing the output. Normally, a\nminimal space output format is used which will suppress empty lines. The program never\nsuppresses two consecutive empty lines, however. The -2 option is useful for sending\noutput to the line printer when the output contains superscripts and subscripts which\nwould otherwise be invisible.\n", "flag": "-2", "long": "--half-lines" }, { "name": "-V --version", "content": "Display version information and exit.\n", "flag": "-V", "long": "--version" }, { "name": "-h --help", "content": "Display help text and exit.\n", "flag": "-h", "long": "--help" } ] }, "HISTORY": { "content": "The colcrt command appeared in 3.0BSD.\n", "subsections": [] }, "BUGS": { "content": "Should fold underlines onto blanks even with the '-' option so that a true underline\ncharacter would show.\n\nCan’t back up more than 102 lines.\n\nGeneral overstriking is lost; as a special case '|' overstruck with '-' or underline becomes\n'+'.\n\nLines are trimmed to 132 characters.\n\nSome provision should be made for processing superscripts and subscripts in documents which\nare already double-spaced.\n", "subsections": [] }, "EXAMPLES": { "content": "A typical use of colcrt would be:\n\ntbl exum2.n | nroff -ms | colcrt - | more\n", "subsections": [] }, "SEE ALSO": { "content": "col(1), more(1), nroff(1), troff(1), ul(1)\n", "subsections": [] }, "REPORTING BUGS": { "content": "For bug reports, use the issue tracker at https://github.com/karelzak/util-linux/issues.\n", "subsections": [] }, "AVAILABILITY": { "content": "The colcrt command is part of the util-linux package which can be downloaded from Linux\nKernel Archive .\n\n\n\nutil-linux 2.37.2 2021-06-02 COLCRT(1)", "subsections": [] } } } }