NAME 

printenv - print all or part of environment

SYNOPSIS 

printenv [VARIABLE]... printenv OPTION

DESCRIPTION 

If no environment VARIABLE specified, print them all.

--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 

Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT 

Copyright © 2006 Free Software Foundation, Inc. This is free software. You may redistribute copies of it under the terms of the GNU General Public License <http://www.gnu.org/licenses/gpl.html>. There is NO WARRANTY, to the extent permitted by law.

SEE ALSO 

The full documentation for printenv is maintained as a Texinfo manual. If the info and printenv programs are properly installed at your site, the command
info printenv

should give you access to the complete manual.