| Date: | Wed, 12 Apr 2006 15:31:06 +0300 |
| From: | Diomidis Spinellis <dds@aueb.gr> |
| Organization: | Athens University of Economics and Business |
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| Newsgroups: | comp.unix.programmer |
| Subject: | Re: problem with grep |
| References: | <1144828524.313367.59970@z34g2000cwc.googlegroups.com> <1144829148.761905.296850@v46g2000cwv.googlegroups.com> |
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Maxim Yegorushkin wrote:
> jeniffer wrote:
>> >From a set of files of extension c ,i need to find a pattern string and
>> the output must also contain the filename of the file tht contains the
>> match.
>> i did
>> $ cat `find . -name '*.c'`|grep -H mystring
>> but its giving the location as standard input.
>> I need the name of the C file.
>
> try something like:
>
> find . -name "*.c" -exec grep -q mystring {} \; -print
>
More efficiently:
find . -name '*.c' -print | xargs grep mystring /dev/null
(The /dev/null argument is needed to print a filename even if you find a
single .c file.)
On some systems the sequence
find . -name '*.c' -print0 | xargs -0 grep mystring /dev/null
will work even with pathnames containing spaces.
--
Diomidis Spinellis
Code Quality: The Open Source Perspective (Addison-Wesley 2006)
http://www.spinellis.gr/codequality
Unless otherwise expressly stated, all original material on this page created by Diomidis Spinellis is licensed under a Creative Commons Attribution-Share Alike 3.0 Greece License.