what - Displays identifying information for Source Code Control System (SCCS) files
what [-s] file...
Interfaces documented on this reference page conform to industry standards as follows:
what: XPG4, XPG4-UNIX
Refer to the
reference page for more information
about industry standards and associated tags.
Searches for just the first occurrence of
Pathname of the file to search.
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.
command is intended for use in conjunction
command, which automatically inserts the identifying
information. You can also use the
command on files
where the information is inserted manually.
The following exit values are returned:
Matches were found.
No matches were found.
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.o: Test Program
a.out: Test Program
The following environment variables affect the execution of
Provides a default value for the internationalization variables
that are unset or null. If
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
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)
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