Tab separated values in awk

Question

How do I select the first column from the TAB separated string?

# echo \"LOAD_SETTLED    LOAD_INIT       2011-01-13 03:50:01\" | awk -F\'\\t\' \'{print $1}\'         


        

Answer 1

Use:

awk -v FS='\t' -v OFS='\t' ...

---

Example from one of my scripts.

I use the FS and OFS variables to manipulate BIND zone files, which are tab delimited:

awk -v FS='\t' -v OFS='\t' \
    -v record_type=$record_type \
    -v hostname=$hostname \
    -v ip_address=$ip_address '
$1==hostname && $3==record_type {$4=ip_address}
{print}
' $zone_file > $temp

This is a clean and easy to read way to do this.