OFS (Output Field Seperator) in AWK

Like wise IFS, we can define OFS (Output File Separator) also in awk to design the o/p....

Say abc.txt is a file contains below data..

$cat abc.txt
ccc#bbb#111
Nnn#hgh#ghs#hhsh

$awk -F'#' '{print $1 $2}' abc.txt
ccc bbb
Nnn hgh

Below is the example with OFS where output is formatted

$ awk -F'#' 'BEGIN{OFS="-"}{print $1,$2}' abc.txt

ccc-bbb
Nnn-hgh

Specifying a  , between columns is mandatory. OFS will be ignored in case " ," is not specified.