$cat file|sort|uniq

UNIX for Advanced & Expert Users
1

I have a file with list of redundant server names and want only unique ones of those.

I have used following command but still redudant ones are listing

$cat file|sort|uniq

where could be the problem.

Thanks,
Srinivas

2

I workout with your command, It's working fine.
I don't know what error you faced.
give me some inputs.

3

I realized there were spaces on some lines because of which i didnt get expected result.

I removed with this command and it worked then.

awk '{print $1}' filename|sort|uniq

Thank you for your response.

Thanks,
Srinivas

4 
awk '{a[$1]} END {for(i in a) print i}' filename