Linux script that reads thru folders and execute command

vdamgo · 02-21-2013, 09:25 AM

how to write a script that reads thru the bunch of folders using while loop.
Please let me know.

Thanks!

schneidz · 02-21-2013, 09:31 AM

where are you stuck ?
i would use the find command to get a list of the directories then pipe it into whatever program i would want to run. the basic structure would be:

Code:

while read line
do
 something $line
done

vdamgo · 02-21-2013, 09:39 AM

Thank you for the reply.

I have one command as below which will sum the file size in each folder, want to execute in 50 folders and get the size of all folders. instead of executing the command in each folder.

find . -type f -newer folder1 -not -newer folder2 -printf "%s\n" | awk '{sum += $0} END{print sum}'

schneidz · 02-21-2013, 09:47 AM

Quote:

Originally Posted by vdamgo

Thank you for the reply.

I have one command as below which will sum the file size in each folder, want to execute in 50 folders and get the size of all folders. instead of executing the command in each folder.

find . -type f -newer folder1 -not -newer folder2 -printf "%s\n" | awk '{sum += $0} END{print sum}'

not really sure from your description what you are after but heres my stab at it:

Code:

find . -type d | while read dir
do
 find "$dir" -type f -newer "$dir"/folder1 -not -newer "$dir"/folder2 -printf "%s\n" | awk '{sum += $0} END{print sum}'
done