Shell Programming and Scripting

#!/bin/ksh
#set -x
 
############################################################################################################################################################
PID=$$
directory="/tmp/${PID}"
file=$directory/`uname -n`.txt
mkdir -p "${directory}" 2>/dev/null
cd $directory
 
if [ -e /etc/SuSE-release ] 
then 
OS="SUSE" 
elif [ -e /etc/redhat-release ] 
then 
OS="REDHAT" 
fi
#OS=$(uname -s)
 
 
echo "Server%Login%UID%GID%Gecos%Status%Account_expires_on%Password_changed_on%Minage%Maxage%Password_Length%password_history%roles%Last_Used%Last_PTS%Last_FTP%Last_Console%Last_SU%From-To%Home%Shell%Date" >> $file
last > last.txt
 
 
su_string=" su(pam_unix)"
if [ $OS = REDHAT ]
then
grep $su_string /var/log/messages > su.txt
elif [ $OS = SUSE ]
then
grep $su_string /var/log/messages | grep 'su: (to' | sed 's/)//g' | sed 's/(//g' > su.txt
fi
echo $OS
 
# Exit if it is not a RedHat or SuSE 
if [ $OS = "" ]
then 
exit 
fi
 
for i in `cat /etc/passwd |cut -d: -f1 | uniq`
do
k=$i":"
record=`uname -n`
record=$record"%"$i"%"`grep "^$k" /etc/passwd | cut -d: -f3`"%"`grep "^$k" /etc/passwd | cut -d: -f4`"%"`grep "^$k" /etc/passwd | cut -d: -f5`
g=`passwd -S "$i"`
record=$record"%"`passwd -s "$i" | awk '{print $2}'`
record=$record"%N/A"
record=$record"%"`passwd -s "$i" | awk '{print $3}'`
record=$record"%"`passwd -s "$i" | awk '{print $4}'`
record=$record"%"`passwd -s "$i" | awk '{print $5}'`
record=$record"%N/A"
record=$record"%N/A"
record=$record"%N/A"
record=$record"%"`grep $i last.txt | head -1 | awk '{print $4,$5,$6,$7,$8,$9}'`
record=$record"%"`grep $i last.txt | grep 'pts/' | head -1 | awk '{print $4,$5,$6,$7,$8,$9}'`
record=$record"%"`grep $i last.txt | grep ' ftp ' | head -1 | awk '{print $4,$5,$6,$7,$8,$9}'`
record=$record"%"`grep $i last.txt | grep 'console' | head -1 | awk '{print $4,$5,$6,$7,$8,$9}'`
 
if [ $OS = REDHAT ]
then
record=$record"%"`grep -e -$i su.txt | tail -1 | awk '{print $1" "$2" "$3}'`
record=$record"%"`grep -e -$i su.txt | tail -1 | sed 's/(uid*/ /g' | sed 's/(uid*/ /g' |awk '{print $12"-"$10}'`
elif [ $OS = SUSE ]
then
record=$record"%"`grep -e -$i su.txt | tail -1 | awk '{print $1" "$2" "$3}'`
record=$record"%"`grep -e -$i su.txt | tail -1 | awk '{print $8"-"$7}'`
fi
 
record=$record"%"`grep "^$k" /etc/passwd | cut -d: -f6`
record=$record"%"`grep "^$k" /etc/passwd | cut -d: -f7`
record=$record"%"`date`
echo $record >> $file
done
echo "#EOF - Normal End of File Found" >> "${file}"
 
cat "${file}"
cd /tmp
rm -rf "${PID}"