Performance of a shell script

UNIX for Advanced & Expert Users
1

Hiii,
I wrote a shell script for testing purpose.

I have to test around 200thousand entries with the script.When i am doing only for 6000 entries its taking almost 1hour.If i test the whole testingdata it will take huge amount of time.

I just want to know is it something dependent on the configuration of machine.
Any suggestion how i can increase the efficiency of my script.

Thanks in advance.
Namish

2

We can comment better if we see the script. As such, if you use external tools like cat, grep or something in a shell script, then you should see the mileage varying a lot.

See shell script takes long time to complete as an example.

3

Choose the language appropriate to the task.

Shells are very heavy users of process forking/execing.

Using a language like Perl, C, C++, Java may give a dramatic improvement because they are not continually starting new processes to do tiny tasks.