linux shell file size

Question

How can I get the size of a file into a variable?

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

gave the size, but how can I store it in a shell variable?

Answer 1

filesize=$(stat -c '%s' testing.txt)

Answer 2

You can do it this way with ls (check the man page for the 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")