Shell Programming and Scripting

I have a file with columns which are separated by tabs and spaces like

Code:

111          333 444 555  7gg 
333          555 678 778  6yy

I need to write a AWK commmand , to search for a pattern in column 1 eg "111" and replace the value in column 5 with say "7kk" , I tried the assignment $5="7kk" , but if I print the line {print $0} , the column are separated only by spaces, but I want to retain the original format.

Can anyone please help me with this

HOpe This can help you..

Code:

$ echo "111          333 444 555  7gg"| awk '/111/ {sub($5,"7kk");print}'
111          333 444 555  7kk

Thanks
Sha

Thanks a lot for your reply , but the command sub did not work

Whish OS ..you are in ?

if you are using solaris...then use nawk instead on awk command!!

Thanks
SHa

Sorry I should have mentioned that the OS is Sun Solaris 5.10.
{sub($5,"7kk");print}' works in nawk

Thanks again