Question

I know that time will send timing statistics output to stderr. But somehow I couldn’t capture it either in a bash script or into a file via redirection:

time $cmd 1>/dev/null 2>file
$output=`cat file`

Or

$output=`time $cmd 1>/dev/null`

I’m only interested in timing, not the direct output of the command. I’ve read some posts overhere but still no luck finding a viable solution. Any suggestions?

Thanks!

Answer 1

Try:

(time $cmd) 1>/dev/null 2>file

so that (time $cmd) is executed in a subshell environment and you can then redirect its output.