MirBSD manpage: env(1)
ENV(1) BSD Reference Manual ENV(1)
env - set and print environment
env [-0i] [-u name] [name=value ...] [utility [argument ...]]
env executes utility after modifying the environment as specified on the
command line. The option name=value specifies an environment variable,
name, with a value of value.
The options are as follows:
-0 Use the NUL ('\0') character as output line terminator, instead
of newline ('\n').
-i Causes env to completely ignore the environment it inherits.
-u name If the environment variable name is set in the environment, re-
move it before processing the remaining options. This is similar
to the unset built-in utility in sh(1). The value for name must
not include an equals sign ('=').
If no utility is specified, env prints out the names and values of the
variables in the environment, with one name=value pair per line.
env doesn't handle commands with equal ('=') signs in their names, for
obvious reasons.
The env utility exits with one of the following values:
0 env completed successfully and, if utility was specified, it was in-
voked and completed successfully too.
1 An invalid command line option was passed to env and utility was not
invoked, or utility was invoked but failed with exit status 1.
2-125, 128-255
utility was invoked but failed with this exit status; see its manual
page for more information.
126 utility was found but could not be invoked, or it was invoked but
failed with exit status 126.
127 utility could not be found, or it was invoked but failed with exit
status 127.
execvp(3), environ(7)
The env utility is compliant with the IEEE Std 1003.1-2008 ("POSIX.1")
specification.
The historic - option has been deprecated but is still supported in this
implementation.
MirBSD #10-current June 4, 2020 1