Last edit
Summary: Fixed typo in literal regex
Changed:
< if ($i ~ /foo)
to
> if ($i ~ /foo/)
Fields are numbered from 1 to NF, so you can easily use a for loop, and the derefence operator, for instance to print each field matching foo:
for (i=1;i<=NF;i++) { if ($i ~ /foo/) { print $i } }