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GREP for more than just 1 line?

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bloodavenger9
 PostPosted: Wed Sep 22, 2010 9:38 pm   

Joined: Mon Sep 20, 2010 7:56 pm
Posts: 6
heylo!
i was wondering how to "grep -H" a how text that contain one or more occurrence of a pattern and return the whole text with the filename at the start as opposed to a bunch of lines each with the filename attached?

ex: grep -H <pattern> <files>
returns
<file1>: <line with pattern>
<file1>: <line with pattern>
<file1>: <line with pattern>
<file2>: <line with pattern>
...

want
<file1>: <whole content of file>

thx!
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DarthWavy
 PostPosted: Thu Sep 23, 2010 5:14 am   
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Joined: Thu Oct 11, 2007 7:12 am
Posts: 213
Location: London - UK
If there is only 1 file that's going to match or you want the output of every file that matched as 1 block of text then this'll do;
Code:
cat $(grep -l <pattern> <files>)


The grep command outputs the file(s) and cat then displays the contents.
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DarthWavy
 PostPosted: Thu Sep 23, 2010 5:18 am   
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Joined: Thu Oct 11, 2007 7:12 am
Posts: 213
Location: London - UK
Sorry, checking the OP again I see that you actually want the filename at the start of the output too;

Code:
for ifile in $(grep -l <pattern> <files>)
do
  echo -n "$ifile: "
  cat $ifile
done


Between the 2 answers hopefully you can extract what you're after :)
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bloodavenger9
 PostPosted: Fri Sep 24, 2010 8:47 am   

Joined: Mon Sep 20, 2010 7:56 pm
Posts: 6
thx for the reply! works great thx
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