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env(1) [sunos man page]

env(1)								   User Commands							    env(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 op- erand 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 unde- fined. 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: LANG, LC_ALL, LC_CTYPE, LC_MES- SAGES, and NLSPATH. PATH Determine the location of the utility. If PATH is specified as a name=value operand to env, the value given shall be used in the search for utility. EXIT STATUS
If utility is invoked, the exit status of env is the exit status of utility. Otherwise, the env utility returns one of the following exit 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 TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |enabled | +-----------------------------+-----------------------------+ /usr/xpg4/bin +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWxcu4 | +-----------------------------+-----------------------------+ |CSI |enabled | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ SEE ALSO
ksh(1), sh(1), exec(2), profile(4), attributes(5), environ(5), standards(5) SunOS 5.10 2 Jan 2002 env(1)

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env(1)							      General Commands Manual							    env(1)

NAME
env, printenv - Displays or sets the current environment, or displays the values of environment variables SYNOPSIS
Current Syntax env [-i] [name=value...] [command] [args...] printenv [name] Obsolescent Syntax env [-] [name=value...] [command] [args...] STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: env: XCU5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. OPTIONS
Invokes utility with exactly the environment specified by the arguments; the inherited environment is ignored completely. Changes are in effect only while the specified command is running. Dash is equivalent to -i option. OPERANDS
Changes in the form name=value are added to the current environment before the command is run. [Tru64 UNIX] Name of an environment vari- able to be printed. Name of a command to be invoked with the modified environment. Arguments to be passed to command when it is executed. DESCRIPTION
The env command lets you get and change your current environment, and then run the specified command with the changed environment. If the -i option is used, the current environment is ignored and the command runs with only the changed environment. Changes are only in effect while the specified command is running. If command is not specified, env displays your current environment, one name=value pair per line. [Tru64 UNIX] The printenv command displays the values of the variables in the environment. If name is specified, only its value is printed. If name is not the name of a currently set environment variable, only a blank line is printed, no error is reported. If name is not specified, printenv displays the current environment, one name=value per line. EXIT STATUS
If command is invoked, the exit status of env is the exit status of command; otherwise, the env utility exits with one of the following values: The env utility completed successfully. An error occurred in the env utility. The command specified by command was found but could not be invoked. The command specified by command could not be found. EXAMPLES
To add a shell variable to the environment for the duration of one command (sh only), enter: TZ=MST7MDT date env TZ=MST7MDT date Each of these commands displays the current date and time in Mountain Standard Time. The two commands shown are equivalent. When date is finished, the previous value of TZ takes effect again. To replace the environment with another one, enter: env -i PATH=$PATH IDIR=/u/jim/include LIBDIR=/u/jim/lib make This runs make in an environment that consists only of these definitions for PATH, IDIR, and LIBDIR. You must redefine PATH so that the shell can find the make command. When make is finished, the previous environment takes effect again. To find the current setting of the TERM environment variable, enter: printenv TERM The command returns the value for the TERM environment variable. ENVIRONMENT VARIABLES
The following environment variables affect the execution of env: Provides a default value for the internationalization variables that are unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization vari- ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value, overrides the values of all the other internationalization variables. Determines the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multibyte characters in arguments). Determines the locale for the for- mat and contents of diagnostic messages written to standard error. Determines the location of message catalogues for the processing of LC_MESSAGES. SEE ALSO
Commands: csh(1), ksh(1), Bourne shell sh(1b), POSIX shell sh(1p) Functions: exec(2) Standards: standards(5) env(1)

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