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what(1)
NAME
  what - Displays identifying information for Source Code Control System
  (SCCS) files

SYNOPSIS
  what [-s] file...

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

  what:	 XPG4, XPG4-UNIX

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

OPTIONS
  -s  Searches for just the first occurrence of @(#).

OPERANDS
  file
      Pathname of the file to search.

DESCRIPTION
  The what command searches the named files for all occurrences of the
  pattern that get(1) substitutes for the %Z% keyletter, and writes to
  standard output whatever follows the pattern up to, but not including, the
  first " (double quote), > (redirection symbol), newline character, \
  (backslash), or null character.

  By convention, the value substituted by get(1) for the %Z% keyletter is
  @(#).	 (See the get(1) command or the prs(1) command for a description of
  identification keywords.)

  If you specify more than one file, each line of output is preceded by the
  name of the file it is read from; otherwise, the file name is not
  displayed.  If no file is specified, what reads from standard input.

  The what command is intended for use in conjunction with the get command,
  which automatically inserts the identifying information.  You can also use
  the what command on files where the information is inserted manually.







EXIT STATUS
  The following exit values are returned:

  0   Matches were found.

  1   No matches were found.

EXAMPLES
  Suppose that the file test.c contains a C program that includes either of
  the following lines:

       char ident[ ] = "@(#)Test Program";
       #pragma ident "@(#)Test Program"

  If you compile test.c to produce test.o and a.out, you could then enter the
  following command:

       what test.c test.o a.out

  This command would produce the following displays:

       test.c:
	       Test Program
       test.o:
	       Test Program
       a.out:
	       Test Program

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

  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 and input files).

  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:  admin(1), cdc(1), comb(1), delta(1), get(1), prs(1), rmdel(1),
  sact(1), sccs(1), sccsdiff(1), sccshelp(1), unget(1), val(1)

  Files:  sccsfile(4)

  Standards:  standards(5)

  Programming Support Tools