In Bash shell, is there a simple way for me to monitor the time taken to run a script and output the time taken?
3 Answers
Yes.
time script
Where script
is the script to monitor the time for.
For instance, time find ~
will output something like this (Depending on the size of your home directory, that is):
real 0m49.139s
user 0m0.663s
sys 0m4.129s
I made a tic/toc timer pair utility called ttic
and ttoc
. It's available here.
Example use:
$ ttic && sleep 0.4 && ttoc
0.405
To avoid conflicts with an existing tic/toc pairing, an ID can be specified, here foo
:
$ ttic foo && sleep 0.5 && ttoc foo
Or assign a random ID, like so:
$ id=$(ttic --unique) && sleep 0.5 && ttoc $id
If you want to time a chunk of code, you can do:
> time { sleep 3; }
real 0m3.013s
user 0m0.002s
sys 0m0.006s