duplicate lines without uniq command

[w01verine]

Hello,
Could you please tell me how to remove duplicate lines from a file without using uniq command?

12-29-08 10:10 121221 server A
12-29-08 10:12 121221 server A
12-29-08 10:10 121221 server c
12-29-08 10:10 121221 server B
12-29-08 10:10 121221 server c
12-29-08 10:12 121221 server A
12-29-08 10:10 121221 server c
12-29-08 10:10 121221 server B
12-29-08 10:10 121221 server c

This is an example file.

Thanks in advance.

[Mosquito]

Just curious, why can't you use uniq?

First thing you need to do is sort the file. That will make it much easier for you.

[w01verine]

Thank you for posting

nothing in particular.. I got an alternate way for this..

sort -u filename

This is working as expected for me..