Hi All,

I would like to have a script which is able to perform the below.
Print the whole row if column1 which is "0001" for the below example is the first occurrence. Subsequent "0001" occurrence will not be printed out and so on.

Can any expert help ?

Input:

0001 k= 40
0001 k= 2
0002 k= 1
0003 k= 1
0004 k= 77
0004 k= 1
0005 k= 88
0005 k= 6

Output:

0001 k= 40
0002 k= 1
0003 k= 1
0004 k= 77
0005 k= 88