printenv(1) - man - phpman

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⚡ TLDR: printenv (tldr-pages)

Print values of environment variables.

Display key-value pairs of all environment variables
printenv
Display the value of a specific variable
printenv {{HOME}}
Display the value of a variable and end with NUL instead of newline
printenv {{-0|--null}} {{HOME}}

PRINTENV(1) User Commands PRINTENV(1)

NAME
printenv - print all or part of environment

SYNOPSIS
printenv [OPTION]... [VARIABLE]...

DESCRIPTION
Print the values of the specified environment VARIABLE(s). If no VARIABLE is specified,
print name and value pairs for them all.

-0, --null
end each output line with NUL, not newline

--help display this help and exit

--version
output version information and exit

NOTE: your shell may have its own version of printenv, which usually supersedes the version
described here. Please refer to your shell's documentation for details about the options it
supports.

AUTHOR
Written by David MacKenzie and Richard Mlynarik.

REPORTING BUGS
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>

COPYRIGHT
Copyright © 2020 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later
<https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to
the extent permitted by law.

SEE ALSO
Full documentation <https://www.gnu.org/software/coreutils/printenv>
or available locally via: info '(coreutils) printenv invocation'

GNU coreutils 8.32 January 2026 PRINTENV(1)