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If you call it inefficient, I fully agree. As mentioned before, useless is a different thing. With your experience you should have noticed that the request for information was from a noob. By...

Hi Vinoth, great.

for those calling things useless...... In my opinion using `cat` as an example is easy to understand, so useful. There are many one-liners (without useless things) which take...

make the grep case-insensitive by changing the command to
cat script.txt | egrep -i "^machine|^Owner

You could take a look in the manpage of grep and egrep. I think egrep is not supported under ksh and for grep you can try to find an option that suits your needs

> man grep

Please be aware that...

Hi Vinoth,

I am using bash, don't know about you. When I do a small test, it is working fine:
> vi test.txt (I copied your text in)

> file=test.txt
> cat $file | egrep "^machine|^Owner"...

Hi Vinoth,

you can try the next command:
cat $file | grep -A 1 machine
it will take every line containing "machine" and the next line

also cat $file | egrep "^machine|^Owner" should do the...