Finding user accounts not accessed for a specific number of days

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Old 09-17-2011

Thank you all for your reply. This weekend I'm planning to sit tight and write a script for this. Once done, I'll post that here and would love to get your reviews. Smilie

---------- Post updated 09-17-11 at 04:13 PM ---------- Previous update was 09-16-11 at 07:45 PM ----------

Well thanks for your input guys. Here is the bash script I have written for our Linux and Solaris servers. It's almost similar to the ksh script I wrote for the same purpose on AIX servers. The difference is with AIX's lsuser command, it was easy for me to get user details.

Review the code and let me know your thoughts Smilie

# this script searches for the user ids which have not been used for a specific
# number of days

# the number of days to be monitored
expiry=$(( 86400*$expdays ))

LOG1=/tmp/inactive_usr_$expdays_days.$( date '+%m-%d-%Y' ).log
LOG2=/tmp/never_logged_usrs.$( date '+%m-%d-%Y' ).log

# list out the accounts which can be used to log in to the server

cat /etc/passwd | grep -Ev ^"root|daemon|nobody|adm|sys" | cut -d ":" -f1 >>$tmp1

# date and time calculation with respect to unix epoch

year=$( date +%Y )

today=$( date +%s )

# now, for each of the user listed above, run a check if the last logged in time exceedes the specified number of days.

cat $tmp1 | while read usr; do
        umnt=$( last -1 $usr | head -1 | awk '{ print $5 }' )
        uday=$( last -1 $usr | head -1 | awk '{ print $6 }' )
        uhour=$( last -1 $usr | head -1 | awk '{ print $7 }' | cut -d ":" -f1 )
        umin=$( last -1 $usr | head -1 | awk '{ print $7 }' | cut -d ":" -f2 )

        # the below line checks and stores the IDs which were never used
        if [ ! $uday ] || [ ! $uhour ] || [ ! $umin ]; then
            echo "$usr:__NeveR__" >>$LOG2
            llogin=$( date +%s -d"$umnt $uday, $year $uhour:$umin:01" )
            mini=$(( $today-$llogin ))
            if [[ $mini -gt $expiry ]]; then
                login=$(( ($today-$llogin)/86400 ))
                echo "$usr:$login" >>$LOG1

rm -f $tmp1

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