what - show what versions of object modules were used to
construct a file
what [-s] file [...]
what reads each file and searches for sequences of either
the form ``$''
immediately followed by the system name (sysname) as defined
or the form ``@(#)'' as inserted by the source code control
prints the remainder of the string following this marker, up
to a NUL,
newline, double quote, backslash, or `>' character.
If the -s option is specified, only the first occurrence of
string in each file is printed.
The what utility exits with a return value of 0 if any identification
strings were found, or with a return value of 1 otherwise.
The what utility is expected to be a superset of the IEEE
The what command appeared in 4.0BSD.
As BSD is not licensed to distribute SCCS, this is a rewrite
of the what
command which is part of SCCS. As such it may not behave
same as that command does.
OpenBSD 3.6 May 1, 2003
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