Alternative to uniq

viranihardik · #1 (**permalink**) 03-23-04, 14:32

Hi,
I need to delete lines from the file which are similar to the first line "ONLY". The file looks something like:

Line 1 (to be compared with )
Line 2
Line 3
Line 1 (to be deleted)
Line 4
Line 1 to be deleted)

uniq compares all the lines and also requires sort ..something I dont need to use.

Could someone let me know how to go about it

Thanks

aigles · #2 (**permalink**) 03-23-04, 16:23

You can do somthing like this :

Code:

awk 'NR==1 { first = $0; print } $0 != first' input_file

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