>From the manpage for 'what' (at least on BSD)
' what reads each file name and searches for sequences of the form
``@(#)'', as inserted by the source code control system. It prints
the
remainder of the string following this marker, up to a null
character, newline, double quote, or ``> character.''
'
So it seems somewhat dependent on SCCS or some such source control mechanism.
Personally I like the 'file' command for finding useful summary info on files:
'$ file names.png
names.png: PNG image data, 4145 x 4197, 8-bit/color RGBA, non-interlaced
$ file ld-2.6.1.so
ld-2.6.1.so: ELF 32-bit LSB shared object, Intel 80386, version 1
(SYSV), dynamically linked, stripped'
David.
On Tue, Feb 26, 2008 at 11:02 AM, Brian Henning
<Brian.Henning at datadirect.com> wrote:
> Hi Gang,
>
> A friend of mine is asking about the "linux equivalent of the what
> command on Solaris." Apparently, there's a command included with the
> Solaris C compiler called "what", which can extract information from a
> binary file about source code revisions, for example:
>
> $ what libodbc.so
> libodbc.so:
> qeunix.hpp $Revision: 1.3 $,$Date:: Dec 05 20$
> ucnvconv.hpp $Revision: 1.4 $ $Date:: Apr 03 2006$
> bug.hpp $Revision: 1.1 $ $Date:: Dec 04 2006$
> noansi.hpp $Revision: 1.0 $ $Date:: Oct 07 2005$
> bos.hpp $Revision: 1.17 $ $Date:: Jun 27 2007$
> [...]
>
> This strikes me as a compiler feature. Googling with the word "what" is
> not a very efficient endeavor, so I thought I would ask here. Does GCC
> include such a feature, and if so, how is it used?
>
> Many thanks,
> ~Brian
>
> ----------------
> Brian A. Henning
> DataDirect
> Support Engineer
> 888-332-6797
> ----------------
>
>
> --
> TriLUG mailing list : http://www.trilug.org/mailman/listinfo/trilug
> TriLUG Organizational FAQ : http://trilug.org/faq/
> TriLUG Member Services FAQ : http://members.trilug.org/services_faq/
>