Linux Commands Examples

A great documentation place for Linux commands


run a program in a modified environment


env [OPTION]... [-] [NAME=VALUE]... [COMMAND [ARG]...]

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env > env.log


Set each NAME to VALUE in the environment and run COMMAND.
, --ignore-environment

start with an empty environment

-0, --null

end each output line with 0 byte rather than newline

-u, --unset=NAME

remove variable from the environment


display this help and exit


output version information and exit

A mere - implies -i. If no COMMAND, print the resulting environment.


Copyright © 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

reporting bugs

Report env bugs to bug-coreutils[:at:]gnu[:dot:]org
GNU coreutils home page: <>
General help using GNU software: <>
Report env translation bugs to <>

see also

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

info coreutils 'env invocation'

should give you access to the complete manual.


Written by Richard Mlynarik and David MacKenzie.

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