Date: Wed, 22 Mar 1995 07:18:58 -0800 From: pascal@netcom.com (Richard A Childers) To: PVinci@ix.netcom.com, questions@FreeBSD.org Subject: Re: How to search through sources?? Message-ID: <199503221518.HAA01124@netcom13.netcom.com>
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"How can I search through the sources to find a Procedure? For example,
if I wanted to look at the panic() function. Is there a tool that will
scan the sources? (P.S. I'm not looking for panic())"
Well, before you go looking through the sources, try the man pages.
% man -k panic # finds all man pages with keyword 'panic'
Try a more manual approach to searching the man pages :
% ls /usr/share/man/*/*panic*
( If you don't have the man pages installed correct this right away. )
If you still need to search the sources :
% find /usr/src -type f -name '*panic*' -print
This will find all files with the pattern '*panic*' in the filename.
However, it is quite common for several routines ( function, procedures,
what have you ) to be collected into a single 'header' file, as a library,
so another technique ( taking this into account ) might be :
% find /usr/src -type f -exec grep -n "panic" {} \; -print
This searches every file under /usr/src for the pattern "panic", printing
those lines it encounters the pattern in, followed by the name of the file
the line(s) were encountered in. ( The '-n' flag gives the line number. )
Redirect this into a file and use a text editor to browse it for the place
where the routine is originally defined.
Caveat : this is all based upon the assumption that /usr/src is readable
to the world or that you have placed yourself in the appropriate groups to
access the /usr/src tree. If you see 'Permission denied', you probably need
to try this as root ( although fixing the problem and returning to running
the search, as yourself, is really the best solution ).
-- richard
Pontius Pilate was politically correct. So was Benedict Arnold.
So was Vidkun Quisling ... and so was Adolph Hitler. |-:
richard childers san francisco, california pascal@netcom.com
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