Question

I need some help with parsing a string in Linux.

I have a string:

[INFO] Total time: 2 minutes 8 seconds

and want to get only

2 minutes 8 seconds

Answer 1

If the line prefix is always the same, simply use sed and replace the prefix with an empty string:

sed 's/\[INFO\] Total Time: //'

Assuming that the time is always the last thing in a line after a colon, use the following regex (replace each line with everything after the colon):

sed 's/^.*: \(.*\)$/\1/'