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command(1)
NAME
  command - Treats command arguments as simple commands

SYNOPSIS
  command [-p] command_name [argument...]

  command [-v  | -V] command_name

  The command command causes the shell to treat the arguments to command as
  simple commands, and suppresses the default shell function lookup.

STANDARDS
  Interfaces documented on this reference page conform to industry standards
  as follows:

  command:  XCU5.0

  Refer to the standards(5) reference page for more information about
  industry standards and associated tags.

OPTIONS
  -p  Performs the command search using a default value for PATH that is
      guaranteed to find all of the standard utilities.

  -v  Writes a string to standard output that indicates the path name or
      command to be used by the shell in the current shell execution
      environment to invoke command_name.

  -V  Writes a string to standard output that indicates how the name given in
      the command_name operand will be interpreted by the shell in the
      current shell execution environment.

DESCRIPTION
  The command command allows you to run the following commands:

    ·  User-defined commands whose names correspond to shell built-in
       commands.

    ·  System commands whose names correspond to shell built-in commands.

  The command_name argument specifies the name of a utility.  The one or more
  optional arguments to command_name specify strings treated as arguments to
  the specified utility.  It also provides information concerning how a
  command name will be interpreted by the shell.

NOTES
  [Tru64 UNIX]	If command_name is not the name of a function, the effect of
  command is the same as would be obtained by specifying command_name without
  command.

RESTRICTIONS
  Since the -v and -V options to command produce output in relation to the
  current shell execution environment, if command is called in a subshell or
  separate utility execution environment, it may not produce correct results.
  The following are examples of this type of operation:

       (PATH=foo command -v)
       nohup command -v

EXIT STATUS
  When the -v or -V options are specified, command returns one of the
  following values.

  0   Successful completion.

  >0  The command_name could not be found, or an error occurred.

  If the -v or -V options are not specified, command returns one of the
  following values on error.

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

  127 An error occurred in the command command, or the utility specified by
      the command_name argument could not be invoked.

  If no error occurs, the exit status of command is that of the command
  specified by the arguments to command.

EXAMPLES
  To ensure execution of the simple command pwd instead of the pwd shell
  built-in command, enter the following:

       command -p pwd

  The preceding command displays the full path name of the current directory,
  and does not perpetuate a view of the current directory location created by
  links as the shell built-in command might do.

ENVIRONMENT VARIABLES
  The following environment variables affect the execution of command:

  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 contains 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 that should be used to affect the format and
      contents of diagnostic messages written to standard error.

  NLSPATH
      Determines the location of message catalogues for the processing of
      LC_MESSAGES.

  PATH
      Determines the search path used during the command search unless the -p
      option is specified.

SEE ALSO
  Commands:  env(1), hash(1), type(1)

  Standards:  standards(5)

Index for Section 1

Alphabetical listing for C

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