opendarwin man page for printenv

PRINTENV(1)						    BSD General Commands Manual 					       PRINTENV(1)

NAME
     printenv, env -- print out the environment, set and print environment

SYNOPSIS
     printenv [name]
     env [-i] [name=value ...] [utility [argument ...]]

DESCRIPTION
     The printenv utility prints out the names and values of the variables in the environment, with one name/value pair per line.  If name is
     specified, only its value is printed.

     Some shells may provide a builtin printenv command which is similar or identical to this utility.	Consult the builtin(1) manual page.

     The env utility executes utility after modifying the environment as specified on the command line.  The option name=value specifies an envi-
     ronment variable, name, with a value of value.

     The options are as follows:

     -i      Execute the utility with only those environment values specified.	The environment inherited by env is ignored completely.

     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.

     The env utility is sometimes useful with the ``#!'' construct (see execve(2)).  The only difference between ``#!/usr/local/bin/foo'' and
     ``#!/usr/bin/env /usr/local/bin/foo'' is that the latter works even if /usr/local/bin/foo is itself interpreted.  Using env this way also
     allows one to reference foo without the path, as well as set up the environment as desired.

ENVIRONMENT
     The env utility uses the PATH environment variable is used to locate the requested utility if the name contains no '/' characters.

DIAGNOSTICS
     The printenv utility exits 0 on success, and >0 if an error occurs.

     The env utility exits 0 on success, and >0 if an error occurs.  An exit status of 126 indicates utility was found, but could not be executed.
     An exit status of 127 indicates utility could not be found.

COMPATIBILITY
     The env utility accepts the - option as a synonym for -i.

SEE ALSO
     csh(1), sh(1), execvp(3), environ(7)

STANDARDS
     The env utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').

HISTORY
     The printenv command appeared in 3.0BSD.

BUGS
     The env utility doesn't handle utility arguments with equal (``='') signs in their names, for obvious reasons.

BSD
								   June 6, 1993 							       BSD