Shell Programming and Scripting

Hey guys,

I'm attempting to compare the contents of two files that are not identical on a Solaris 10 box. We are under audit and I need to do some comparisons of our application accounts with our unix accounts. I essentially want to pull a line from one file and search the second for an equal entry. I cannot use diff since it will just tell me every line is different. Here is the section that is giving me trouble:

Code:

#!/bin/sh
AUDITDIR=/apps/admin/sysadmin/audit
OPERSACCTS=$AUDITDIR/opersAccts
OPERSONLY=$AUDITDIR/opersOnly
for i in $FILE*
do
    if [ -s $i ]
       then
            lower=`tr '[A-Z]' '[a-z]' < $i`
            echo $lower >> $OPERSACCTS
            grep $lower /etc/passwd > /dev/null
            if [ $? != 1 ]
            then
              echo $lower >> $OPERSONLY
            fi
       else
            echo "No OPERS records in list..."
   fi
done

For some reason the contents of $i are getting inserted into the file on a single line. When I try to echo the contents of $i prior to the assignment of the $lower variable I get nothing as if it's blank, yet if I echo out the contents of $lower I get the same one line list of values. I think this is what is messing up my grep statement.

Anybody have pointers. I'm sure this code is spotty and needs some re-working.

This line:

Code:

lower=`tr '[A-Z]' '[a-z]' < $i`

should be:

Code:

lower=`echo $i | tr '[A-Z]' '[a-z]'`

To compare integers this line:

Code:

if [ $? != 1 ]

should be:

Code:

if [ $? -ne 1 ]