I tried:<br>
$time --help<br>
bash: --help: command not found<br>
<br>
real    0m0.052s<br>
user    0m0.000s<br>
sys     0m0.001s<br>
$time -f "%E real,%U user,%S sys" ls -Fs #An example from `man time`<br>
bash: -f: command not found<br>
<br>
real    0m0.001s<br>
user    0m0.000s<br>
sys     0m0.001s<br>
<br>Its behavior is completely different from the manual.<br>-- <br>Best regards<br><br>Shixin Zeng