Randall R Schulz wrote:

On Friday 18 May 2007 10:16, Herbert Georg wrote:

...

Hi all,

I'm trying to use the command "time" to access information about a job, but without success. The man page tells me that I can use options to time, like:

...

but nothing of this works. All I get is (in the last example):

bash: --help: command not found

...

I get the same thing in all option cases.

Why doesn't it accept any option, and keep interpreting the options as the commands?

Time exists both as a BASH built-in and as a binary executable. The man page for time describes the executable. Information about the BASH built-in is available in the BASH man page or via "help time".

And the "which" comamnd is your friend as in $ which time Be aware that $ which which can also yield interesting results (hint, there is /usr/bin/which and also built-in versions in ksh, pdksh, bash, and possibly csh and tcsh)

Randall Schulz

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On Fri May 18 2007 12:39, M Harris wrote:

Try this:

which time

You will probably notice that it just returns to the prompt... and does not tell you which time... because it is finding the one built into the shell.

which /usr/bin/time

Now you will notice that it finds the system time command--- and the two are different.

compare:

#>time

#>/usr/bin/time

The outputs will be different. Use the /usr/bin/time and you'll get what you want.

Now, here is a puzzle: clange@zico:~> which time /usr/bin/time clange@zico:~> type time time is a shell keyword clange@zico:~> time --help bash: --help: command not found real 0m0.011s user 0m0.000s sys 0m0.004s That is, in my case the built-in "time" has precedence, but "which" is giving the impression that I would be running /usr/bin/time. If I use the option -a: clange@zico:~> which -a time /usr/bin/time clange@zico:~> type -a time time is a shell keyword time is /usr/bin/time Since "which" gives out nothing in the case of a shell built-in command, perhaps what it is doing everytime is 1) giving out nothing, 2) giving out /usr/bin/time in second place. So, "type" seems to be more useful here. Carlos FL -- Who is General Failure, and why is he reading my disk? -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

On Sat, 19 May 2007 11:15:28 -0600, Carlos F Lange wrote:

clange@zico:~> which time /usr/bin/time clange@zico:~> type time time is a shell keyword clange@zico:~> time --help bash: --help: command not found

real 0m0.011s user 0m0.000s sys 0m0.004s

In bash, the 'which' command is normally an alias for the bash built-in command type (try 'type -a which'). Philipp -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

On Friday 18 May 2007 13:41, ken wrote:

Use what you want to time as the argument to the "time" command, e.g.,

 $ time date Fri May 18 14:39:18 EDT 2007 Ken, you're missing his point.

... he knows how to time... what he wants is to use the -o switch to send the time to an output file... this will not work with the shell version of time... he must use: /usr/bin/time -o outputfile date This will time the date command and send the timing results to outputfile. -- Kind regards, M Harris <>< -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

* Jonathan Arnold [05-20-07 09:35]: [...]

Interesting thread here. I summarized and added some new information in a blog post on my Daemon blog:

http://freebsd.amazingdev.com/blog/archives/000873.html

AND, of course, you added this information to http://opensuse.org where those not knowing of your web site would be readily able to access the information? :^) -- Patrick Shanahan Plainfield, Indiana, USA HOG # US1244711 http://wahoo.no-ip.org Photo Album: http://wahoo.no-ip.org/gallery2 OpenSUSE Linux http://en.opensuse.org/ Registered Linux User #207535 @ http://counter.li.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org