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User Commandsenv(1)


NAME

 env - set environment for command invocation

SYNOPSIS

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

DESCRIPTION

 

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

 

If env executes commands with arguments, it uses the default shell /usr/bin/sh (see sh(1)).

/usr/xpg4/bin

 

If env executes commands with arguments, it uses /usr/xpg4/bin/sh (see ksh(1)).

OPTIONS

 

The following options are supported:

-i | -
Ignores the environment that would otherwise be inherited from the current shell. Restricts the environment for utility to that specified by the arguments.

OPERANDS

 

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 utility.

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.

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

/usr/bin

 
ATTRIBUTE TYPEATTRIBUTE VALUE
AvailabilitySUNWcsu
CSIenabled

/usr/xpg4/bin

 
ATTRIBUTE TYPEATTRIBUTE VALUE
AvailabilitySUNWxcu4
CSIenabled

SEE ALSO

 

ksh(1), sh(1), exec(2), profile(4), attributes(5), environ(5), XPG4(5)


SunOS 5.9Go To TopLast Changed 2 Jan 2002

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.