To identify filename in which having match PATTERN - Shell Programming and Scripting

cedrichiu · #1 (**permalink**) 03-21-2008

Hi,

Any idea to identify bunch of files( gz format) in which having match PATTERN wanted and print out those files ?

Regards,

DukeNuke2 · #2 (**permalink**) 03-21-2008

write a script that gunzip the files, grep for pattern and notice you if pattern is found.

jaduks · #3 (**permalink**) 03-21-2008

If you are meaning of individual .gz files, you can use zgrep

Code:

$ cat abc.txt
unix
a
unix

$ gzip.exe abc.txt

$ zgrep "unix" abc.txt.gz
unix
unix

//Jadu

DukeNuke2 · #4 (**permalink**) 03-21-2008

zgrep is not on every system... on my linux (ubuntu) server: yes. on my solaris nevada: no.

so, the answer depends on your os

cedrichiu · #5 (**permalink**) 03-21-2008

If there is a single file, should be easiar. But what if I hv list of 1000 files, in which I want to identify which filelist are contains those matched pattern.

Please advise.

DukeNuke2 · #6 (**permalink**) 03-21-2008

Quote:

Originally Posted by cedrichiu

If there is a single file, should be easiar. But what if I hv list of 1000 files, in which I want to identify which filelist are contains those matched pattern.

Please advise.

do it with a loop... something like:

Code:

for i in `ls -1 *.gz`
do

era · #7 (**permalink**) 03-23-2008

*bling* Useless Use of Glob in Backticks! Also the "ls -l" actually is a rather grave error. You could simply drop the -l, but the whole ls is redundant.

Code:

for i in *.gz
do
  gzip -dc <$i | fgrep "string" >/dev/null && echo $i
done

If you have an fgrep which supports fgrep -q, use that.

zgrep is actually fairly buggy for stuff like this; other than that, it is the proper answer. It's a fairly small shell script so you could simply find it in Google and copy to your $HOME/bin

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