UNIX for Advanced & Expert Users

#!/bin/bash
set -x
while read path
do
egrep $path file2
if [ `echo $?` != 0 ];then
echo "path $path is missing " >> output
fi
done < file1

more file1
/dell/sony/power/IS/server
/dell/sony/power/IS/
/dell/sony/power/
/dell/sony/
/dell/
/dev/testcase failing

more file2
/dell/sony/power/IS/server
/dell/sony/power/IS/
/dell/sony/power/
/dell/

path /dev/testcase failing is missing

path /dev/testcasefor/failing  is missing 
path /dell/sony/ is missing

awk '{arr[$0]++}       
       END {for (i in arr){if(arr[i]<2 ){print i, " is missing"}} } ' file1  file2 > error_listing

$ fgrep -x -v -f z9 z8
/dell/sony/
/dev/testcase failing

       -x, --line-regexp
              Select only those matches that exactly match the whole line.
-- excerpt from man fgrep

$ sort file1 file2 file2 | uniq -u | xargs -IXX echo path XX is missing 
path /dell/sony/ is missing
path /dev/testcase failing is missing