On 05/09/2015 06:58 PM, Gokan Atmaca wrote: > The Loop gives error as follows. > > # for g in 'gawk '{print $2}' facebook.com-ip'; do ipset add face $g; done ^ ^ replace this single quotes with backticks # for g in `gawk '{print $2}' facebook.com-ip`; do ipset add face $g; done regrads Ulf