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get execution time of a script

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# 1  
Old 07-29-2009
get execution time of a script
Hi,

I have a simple question. How can I get the execution time of a script and maybe put it in a variable?

Another question. How can I get only time and not date and put it in a variable? I tried something with "date" command but with no success...

If someone could help me...
# 2  
Old 07-29-2009
Quote:
Originally Posted by Moumou
I have a simple question. How can I get the execution time of a script and maybe put it in a variable?
Code:
$ script_times=$(/usr/bin/time -p my_script 3>&2 2>&1 1>&3 3>&-)
$ echo "$script_times

real   0.01
user   0.00
sys    0.01
$

Quote:
Originally Posted by Moumou
Another question. How can I get only time and not date and put it in a variable? I tried something with "date" command but with no success...
Code:
$ current_time=$(date +%T)
$ echo $current_time
11:26:20
$ current_time=$(date +'%H.%M.%S')
$ echo $current_time              
11.27.50
$

Jean-Pierre.
# 3  
Old 07-29-2009
ok, thx a lot for your answer.

Another question : what is the difference between real time, user time and system time?

And I just realized that if forgot a part of my question previously so I ask it now :

In fact i run a script which is calling other scripts. And what i'd like to do is to print at the end of each children script something like
Quote:
"elapsed time : xxhyymzzs"
Thx for your answers
Last edited by Moumou; 07-29-2009 at 07:38 AM..
# 4  
Old 07-29-2009
You can do something like that :
Code:
elapsed()
{
   (( seconds  = SECONDS ))
   "$@"
   (( seconds = SECONDS - seconds ))
   (( etime_seconds = seconds % 60 ))
   (( etime_minuts  = ( seconds - etime_seconds ) / 60 % 60 ))
   (( etime_hours   = seconds / 3600 ))
   (( verif = etime_seconds + (etime_minuts * 60) + (etime_hours * 3600) ))
   echo "elapsed time: ${etime_hours}h${etime_minuts}m${etime_seconds}s"
 }

elapsed sleep 67

Output:
Code:
elapsed time: 0h1m7s

Jean-Pierre.
# 5  
Old 07-29-2009
Thx a lot Jean Pierre,
I tested it and it works.... in bash shell. And i need it for a csh script and here it doesn't work (snif..)
When I just copying the script it send me this error :
Quote:
Badly placed ()'s
and when I remove the first (), it worst... :
Quote:
elapsed: Command not found.
{: Command not found.
seconds: Command not found.
Illegal variable name
I'll try to find out something by myself, but if you have any suggestion, i'll appreciate it!

And sorry not to tell what kind of shell i was writting at the beginning.... SmilieSmilie

Regards
Last edited by Moumou; 07-29-2009 at 11:44 AM.. Reason: forget to say sorry...
# 6  
Old 07-30-2009
Execution time of a script
Hi,

I don't know if I can ask, but I found this function very interesting..

PHP Code:
elapsed()
{
   (( seconds  = SECONDS ))
   "$@"
   (( seconds = SECONDS - seconds ))
   (( etime_seconds = seconds % 60 ))
   (( etime_minuts  = ( seconds - etime_seconds ) / 60 % 60 ))
   (( etime_hours   = seconds / 3600 ))
   (( verif = etime_seconds + (etime_minuts * 60) + (etime_hours * 3600) ))
   echo "elapsed time: ${etime_hours}h${etime_minuts}m${etime_seconds}s"
 } 
At first time I didn't try to make it work, but I was wrong. In fact each time I am using this function on my script I get
PHP Code:
elapsed time: 0h0m0s 
Do you mind to tell me how to make it work correctly ? can you please help me ?

Thanks
Last edited by Aswex; 07-30-2009 at 06:28 AM.. Reason: The script is working correctly on KSH
# 7  
Old 07-30-2009
How are you using this function?
if you are doing something like this :
Code:
code code
code code
code code
elapsed

I understand why it doesn't works. You have to specify on which script you want to apply elapsed.
e.g :
Code:
elapsed yourscript.sh

Jean-Pierre used "sleep 67" as an example.

Regards
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