env, printenv - Displays or sets the current environment, or displays the values of environment variables
env [-i] [name=value...] [command] [args...]
env [-] [name=value...] [command] [args...]
Interfaces documented on this reference page conform to industry standards as follows:
env: XPG4, XPG4-UNIX
Refer to the
reference page for more information
about industry standards and associated tags.
with exactly the environment
specified by the arguments; the inherited environment is ignored completely.
Changes are in effect only while the specified command is running.
Dash is equivalent to
Changes in the form
are added to the current environment
before the command is run.
[Compaq] Name of an environment variable to be printed.
Name of a command to be invoked with the modified environment.
Arguments to be passed to
when it is executed.
The env command lets you get and change your current environment, and then run the specified command with the changed environment. If the -i option is used, the current environment is ignored and the command runs with only the changed environment. Changes are only in effect while the specified command is running.
If command is not specified, env displays your current environment, one name=value pair per line.
command displays the values
of the variables in the environment. If
specified, only its value is printed. If
is not the name of a currently set environment variable, only a blank line
is printed, no error is reported. If
displays the current environment, one
is invoked, the exit status of
is the exit status of
utility exits with one of the following values:
utility completed successfully.
An error occurred in the
The command specified by
was found but could not be invoked.
The command specified by
could not be found.
To add a shell variable to the environment for the duration of one command (sh only), enter: TZ=MST7MDT date env TZ=MST7MDT date
The following environment variables affect the execution of
Provides a default value for the internationalization variables
that are unset or null. If
is unset or null, the corresponding value from the default locale is used.
If any of the internationalization variables contain an invalid setting, the
utility behaves as if none of the variables had been defined.
If set to a non-empty string value, overrides the values of
all the other internationalization variables.
Determines the locale for the interpretation of sequences
of bytes of text data as characters (for example, single-byte as opposed to
multibyte characters in arguments).
Determines the locale for the format and contents of diagnostic
messages written to standard error.
Determines the location of message catalogues for the processing
Commands: csh(1), ksh(1), Bourne shell sh(1b), POSIX shell sh(1p)