grep under subfolders

[unixwhoopie]

If I have main folder called /var/opt/dshs
and there are several subfolders like A1, A2, A3,....

The complete dir structure is
/var/opt/dshs/A1/input/myfile.txt

This myfile.txt is under each folder, A1, A2,...

I want to grep a specific word from each of these files myfile.txt.

Do I have to write a unix script to loop through all the folders? or is there a direct grep command that I can execute under /var/opt/dshs.

Thanks

 

[motoslide]

You can feed grep with a find command if the filenames are consistent:
$ cd /var/opt/dshs
$ find . -type f -name myfile.txt -exec grep YOURWORD {} \;

Or, if the pathnames and filenames are consistent, you can include those in your grep command:
$ cd /var/opt/dshs
$ grep YOURWORD ./A*/input/myfile.txt

 

[PHV]

And what about man grep ?
If the man page talks about -r or -R or -d recurse, then you're lucky !
Otherwise, you may try this:
grep your grep options here /var/opt/dshs/A*/input/myfile.txt
Or this:
find /var/opt/dshs -name myfile.txt | xargs grep your grep options here

Hope This Helps, PH.
Want to get great answers to your Tek-Tips questions? Have a look at FAQ219-2884 or FAQ181-2886

 

[lgarner]

find is probably the way to go. "grep -r" seems like it would work, but I've had *no* luck using it on specific filenames.

 

[stefanwagner]

grep foo /var/opt/dshs/A?/input/myfile.txt

seeking a job as java-programmer in Berlin:

http://home.arcor.de/hirnstrom/bewerbung

 

[mrn]

You can use this to apply a command to all files in all subdirectories

-------------------------------------------------
PN=`basename "$0"`

Usage () {
echo >&2 "$PN - apply command to all files in all subdirectories
usage: $PN command [arg ...]

The given command will be applied to all files in the current
and in all subdirectories -- USE WITH CARE."
exit 1
}

[ $# -lt 1 ] && Usage

find * -type f -print | xargs "$@"

-----------------------------------------------

So you'd do

cd /var/opt/dshs
$PN command [args]

e.g
$PN cat myfile.txt|grep aword

Mike

"A foolproof method for sculpting an elephant: first, get a huge block of marble, then you chip away everything that doesn't look like an elephant."

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