Tracing shell scripts with time stamps

set -x && PS4='+\t '
Enable tracing and print a timestamp before the command to be invoked. Original author: Peter Eisentraut http://petereisentraut.blogspot.com/2012/07/tracing-shell-scripts-with-time-stamps.html
Sample Output
user@example:~$ echo 'hello' && echo 'world!'
+13:09:15 echo hello
hello
+13:09:15 echo 'world!'
world!

0
By: em
2012-07-19 11:13:47

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What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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