Annoying time format issue

[warmongr]

I want to measure the time and memory resources it takes for a process on FC6 and RHEL 4 ES if I type time -f "\t%M" for instance it complains that "-f command not found". However if I use something like ls|time I get the help response from time saying that -f is a valid command line for formating output from time. What are there 2 versions of time on the system?


aaaahhhHHHH!

War.

 

[SamBones]

The command "[tt]time[/tt]" is also a shell built in, which is why it's not recognizing the "[tt]-f[/tt]" parameter. Try invoking it like this...

/usr/bin/time -f "\t%M" your_command

That will force it to use [tt]/usr/bin/time[/tt] and not the shell built-in [tt]time[/tt].