#!/bin/bash

# checklinks--Traverses all internal URLs on a website, reporting
#   any errors in the "traverse.errors" file.


# Remove all the lynx traversal output files upon completion.
trap "`which rm` -f traverse.dat traverse2.dat" 0

if [ -z "$1" ] ; then
  echo "Usage: checklinks URL" >&2 ; exit 1
fi

baseurl="$(echo $1 | cut -d/ -f3 | sed 's/http:\/\///')"

lynx -traversal -accept_all_cookies -realm "$1" > /dev/null

if [ -s "traverse.errors" ] ; then
 echo -n $(wc -l < traverse.errors) errors encountered.
 echo  Checked $(grep '^http' traverse.dat | wc -l) pages at ${1}:
 sed "s|$1||g" < traverse.errors
 mv traverse.errors ${baseurl}.errors
 echo "(A copy of this output has been saved in ${baseurl}.errors)"
else
 echo -n "No errors encountered. ";
 echo Checked $(grep '^http' traverse.dat | wc -l) pages at ${1}  
fi

if [ -s "reject.dat" ]; then
 mv reject.dat ${baseurl}.rejects
fi

exit 0