User Commands                                              env(1)


env - set environment for command invocation


/usr/bin/env [ -i | - ] [ name=value ... ] [ utility [ arg ... ] ] /usr/xpg4/bin/env [ -i | - ] [ name=value ... ] [ utility [ arg ... ] ]


The env utility obtains the current environment, modifies it according to its arguments, then invokes the utility named by the utility operand with the modified environment. Optional arguments are passed to utility. If no utility operand is specified, the resulting environment is written to the standard output, with one name=value pair per line. /usr/bin/env If env executes commands with arguments, it uses the default shell /usr/bin/sh (see sh(1)). /usr/xpg4/bin/env If env executes commands with arguments, it uses /usr/xpg4/bin/sh, which is equivalent to /usr/bin/ksh (see ksh(1)).


The following options are supported: -i | - Ignore the environment that would otherwise be inher- ited from the current shell. Restricts the environ- ment for utility to that specified by the arguments.


The following operands are supported: name=value Arguments of the form name=value modify the execution environment, and are placed into the inherited environment before utility is invoked. utility The name of the utility to be invoked. If utility names any of the special shell built-in utilities, the results are undefined. arg A string to pass as an argument for the invoked util- ity. SunOS 5.8 Last change: 18 Mar 1997 1 User Commands env(1) EXAMPLES Example 1: Invoking utilities with new PATH values. The following utility: example% env -i PATH=/mybin mygrep xyz myfile invokes the utility mygrep with a new PATH value as the only entry in its environment. In this case, PATH is used to locate mygrep, which then must reside in /mybin. ENVIRONMENT VARIABLES See environ(5) for descriptions of the following environment variables that affect the execution of env: LC_CTYPE, LC_MESSAGES, and NLSPATH. EXIT STATUS If utility is invoked, the exit status of env is the exit status of utility; otherwise, the env utility is with one of the following values: 0 Successful completion. 1-125 An error occurred. 126 utility was found but could not be invoked. 127 utility could not be found.


See attributes(5) for descriptions of the following attri- butes: /usr/bin/env ____________________________________________________________ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | | Availability | SUNWcsu | | CSI | enabled | |_____________________________|_____________________________| /usr/xpg4/bin/env ____________________________________________________________ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | | Availability | SUNWxcu4 | | CSI | enabled | |_____________________________|_____________________________|


ksh(1), sh(1), exec(2), profile(4), attributes(5), environ(5), XPG4(5) SunOS 5.8 Last change: 18 Mar 1997 2