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Old 11-24-2005, 10:59 AM   #1
Registered: May 2005
Location: Moldova
Distribution: Kubuntu
Posts: 199

Rep: Reputation: 30
Question 'time' question

The 'time' command runs a program and then summarizes it's resources usage.
I have a really silly question:
How do I send arguments like '--verbose' to the time command?
Here's what I get:
exit@orclopes:~/Desktop/scor$ time --verbose ls
bash: --verbose: command not found

real    0m0.001s
user    0m0.000s
sys     0m0.001s
exit@orclopes:~/Desktop/scor$ time ls --verbose
ls: unrecognised option `--verbose'
Try `ls --help' for more information.

real    0m0.009s
user    0m0.007s
sys     0m0.000s
Thanks everyone.
Old 11-24-2005, 12:33 PM   #2
Registered: Nov 2004
Location: Russia (St.Petersburg)
Distribution: Debian
Posts: 666

Rep: Reputation: 68
Good question, it is impossible It is not a fact, but no of the examples
from manpage work. When I tried to do it myself I could not specify any
parametres to the 'time' tool.
Old 11-24-2005, 01:08 PM   #3
Registered: Oct 2002
Location: Delft, Netherlands
Distribution: Gentoo
Posts: 196

Rep: Reputation: 33
There are two different 'time'-s.

One is the shell time command which doesn't accept the parameters you saw on the man page.

To call the command 'time' use '/usr/bin/time' instead of just 'time' (of course you must have it installed on the system)
Old 11-25-2005, 07:14 AM   #4
Senior Member
Registered: Aug 2002
Location: Groningen, The Netherlands
Distribution: Debian
Posts: 2,536

Rep: Reputation: 111Reputation: 111
When you use bash as the shell, options do not work because "time" is also a bash keyword (wich does not take options).

From "man time":
Users of the bash shell need to use an explicit path in order to run the external time command and not the shell builtin variant.
So this does not work:
bash$ time --verbose sleep 1
But this does:
bash$ /usr/bin/time --verbose sleep 1
Because in the latter example, you are explicitly calling the program "time", instead of the bash keyword.
Old 11-25-2005, 09:00 AM   #5
Registered: May 2005
Location: Moldova
Distribution: Kubuntu
Posts: 199

Original Poster
Rep: Reputation: 30
Thanks a lot. I didn't notice that line in the man page.

(Note to myself: RTFM!)


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