Content-type: text/html Man page of what

what

Section: User Commands (1)
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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

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

OPERANDS

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: Matches were found. 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: 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. 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 and input files). Determines the locale for the format and contents of diagnostic messages written to standard error. 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


 

Index

NAME
SYNOPSIS
STANDARDS
OPTIONS
OPERANDS
DESCRIPTION
EXIT STATUS
EXAMPLES
ENVIRONMENT VARIABLES
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 02:42:46 GMT, October 02, 2010