NAME
env — set environment for command execution
SYNOPSIS
env
[-]
[-i]
[name
=
value] ...
[command
[arguments ...]]
DESCRIPTION
env
obtains the current
environment,
modifies it according to its arguments,
then executes the command with the modified environment.
Arguments of the form
name=value
are merged into the inherited environment before the command is executed.
The
-i
option causes the inherited environment to be ignored completely
so that the command is executed with exactly the environment
specified by the arguments.
The
-
option is obsolete and has the same effect as the
-i
option.
If no command is specified, the resulting environment is printed,
one name-value pair per line.
RETURN VALUE
If
command
is invoked, the exit status of
env
is the exit status of
command;
otherwise,
env
exits with one of the following values:
- 0
env
completed successfully.
- 1-125
env
encountered an error.
- 126
command
was found but could not be invoked.
- 127
command
could not be found.
EXTERNAL INFLUENCES
Environment Variables
LC_MESSAGES
determines the language in which messages are displayed.
If
LC_MESSAGES
is not specified in the environment or is set to
the empty string, the value of
LANG
is used as a default for each
unspecified or empty variable.
If
LANG
is not specified or is set to the empty string, a default of "C" (see
lang(5))
is used instead of
LANG.
If any internationalization variable contains an invalid setting,
env
behaves as if all internationalization variables are set to "C".
See
environ(5).
International Code Set Support
Single- and multi-byte character code sets are supported.
WARNING
The
-
option is obsolete.
Use
-i
instead.
STANDARDS CONFORMANCE
env: SVID2, SVID3, XPG2, XPG3, XPG4, POSIX.2
Printable version
