perl -l -n -e 'BEGIN{$sum=0;} $sum=$sum+ $1 if /(\d+)/;print $1; END {print "Total: ",$sum}' #### echo -e "a\nb\nc" | perl -lne 'next if /b/; print' a c echo -e "a\nb\nc" | perl -lne 'last if /b/; print' a #### perl -lne 'print $s += $1 if /(\d+)/'