linux shell file size

Question

I want to get size of file into variable ? How to do that?

ls -l | grep testing.txt | cut -f6 -d\' \'

gave the size but how to store it in

Answer 1

you can do it this way with ls (check man page for meaning of -s)

$ var=$(ls -s1 testing.txt|awk '{print $1}')

Or you can use stat with -c '%s'

Or you can use find (GNU)

$ var=$(find testing.txt -printf "%s")