comparing xargs and wget ======================== xargs version, 4 times in a row ------------------------------- time xargs -a xargser.txt -n1 -IIMAGE wget --spider -q IMAGE > /dev/null 1.*xargs -a xargser.txt -n1 -IIMAGE wget --spider -q IMAGE > /dev/null* **1.37s user 6.75s system 36% cpu 22.190 total** 2,*xargs -a xargser.txt -n1 -IIMAGE wget --spider -q IMAGE > /dev/null* **1.37s user 6.58s system 30% cpu 25.818 total** 3.*xargs -a xargser.txt -n1 -IIMAGE wget --spider -q IMAGE > /dev/null* **1.34s user 6.76s system 53% cpu 15.012 total** 4.*xargs -a xargser.txt -n1 -IIMAGE wget --spider -q IMAGE > /dev/null* **1.41s user 6.74s system 51% cpu 15.694 total** second try, wget ---------------- time wget -i wgetter.txt --spider -q > /dev/null 1.*wget -i wgetter.txt --spider -q > /dev/null* **0.13s user 0.09s system 5% cpu 4.160 total** 2.*wget -i wgetter.txt --spider -q > /dev/null* **0.16s user 0.10s system 5% cpu 4.323 total** 3.*wget -i wgetter.txt --spider -q > /dev/null* **0.13s user 0.10s system 5% cpu 4.010 total** 4.*wget -i wgetter.txt --spider -q > /dev/null* **0.13s user 0.10s system 5% cpu 4.113 total**