Execute desired line from the file

say_hi_ravi · 04-09-2008, 07:08 AM

I have below file:

#cat z
ls
touch test
hostname

I want to execute 2nd or line of the above file. How can I proceed?

Something like below:
#exec `head -3|tail -1`

it should give me hostname of my machine.

But unfortunately its not working. Please help.

colucix · 04-09-2008, 07:31 AM

In the command line you've posted there is no reference to the file (it should be "head -3 filename | tail -1". Anyway, I should use eval, as in

Code:

eval $(sed -n 3p filename)
eval $(awk 'NR==3' filename)

just two of a long serie of examples!

say_hi_ravi · 04-09-2008, 07:37 AM

It worked!!!
Thank You very much.