non/scripts/percent-complete

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#!/bin/sh
# May 2008 Jonathan Moore Liles
#
# Given the name of a file containing a list of files and a filename
# from that list, return the percentage of the distance from the
# beginning of the list.
[ $# -ne 2 ] && exit
MATCH="`grep -nFx \"$2\" \"$1\"`"
MATCH=${MATCH%%:*}
TOTAL="`cat \"$1\" | wc -l`"
if [ -z "$MATCH" ]
then
echo "0%"
else
printf "%3s%%" $(( $MATCH * 100 / $TOTAL ))
fi