printenv — print all or part of environment
Print the values of the specified environment VARIABLE(s). If no VARIABLE is specified, print name and value pairs for them all.
end each output line with NUL, not newline
display this help and exit
output version information and exit
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.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report printenv translation bugs to <http://translationproject.org/team/>
Full documentation at: <http://www.gnu.org/software/coreutils/printenv>
or available locally via: info '(coreutils) printenv invocation'
Copyright © 2015 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://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.