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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
  -i  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
  name=value
      Changes in the form name=value are added to the current environment
      before the command is run.

  name
      [Tru64 UNIX]  Name of an environment variable to be printed.

  command
      Name of a command to be invoked with the modified environment.

  args
      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:

  0   The env utility completed successfully.

  1-125
      An error occurred in the env utility.

  126 The command specified by command was found but could not be invoked.

  127 The command specified by command could not be found.

EXAMPLES
   1.  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.

   2.  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.

   3.  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:

  LANG
      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
      variables contain an invalid setting, the utility behaves as if none of
      the variables had been defined.

  LC_ALL
      If set to a non-empty string value, overrides the values of all the
      other internationalization variables.

  LC_CTYPE
      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).

  LC_MESSAGES
      Determines the locale for the format and contents of diagnostic
      messages written to standard error.

  NLSPATH
      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)

Index for Section 1

Alphabetical listing for E

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