#!/bin/csh -f # # program to print the new lines added to a file # since the last time this script was run. saves # the old linecount in file.delta if possible. you # only want to use this on files that get new lines # appended to them. # # written by tom christiansen # Wed Nov 12 12:43:39 CST 1986 if ( $#argv == 0 ) then echo "usage: `basename $0` file ..." exit 1 endif foreach file ( $argv ) if ( ( -e $file.delta && ! -w $file.delta ) || ( ! -w $file:h ) ) then echo cannot make delta file for $file goto nextfor endif if ( ! -e $file ) then echo No file: $file goto nextfor endif set curlines = `wc -l $file` set curlines = $curlines[1] if ( -e $file.delta ) then set oldlines = `cat $file.delta` @ newlines = $curlines - $oldlines echo $curlines > $file.delta tail -$newlines $file else echo $curlines > $file.delta endif nextfor: end