which(1) [netbsd man page]

WHICH(1)						    BSD General Commands Manual 						  WHICH(1)

NAME

     which -- locate a program file in the users $PATH environment variable

SYNOPSIS

     which [-a] name [...]

DESCRIPTION

     which takes a list of names and looks for the files which would be executed had these names been given as commands.  Each argument is
     searched for along the user's PATH.

     If the -a flag is given, which will continue to search the PATH until all instances of a program file are found.

HISTORY

     The which command appeared in 3.0BSD.

BUGS

     This implementation does not expand csh(1) aliases, and is shell agnostic.  This is really a feature.

BSD
								  April 23, 1991							       BSD

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