Shell Programming and Scripting

 
count=`find . -type d | while read d; do [ $(( $(ls -a1 $d | wc -l) >= 3 )) == 0 ] && echo $d; done | wc -l`
echo $count

 
count=`find . -type d | while read d
do [ $(( $(ls -a1 $d | wc -l) >= 3 )) == 0 ] && echo $d
done | wc -l`
echo "Number of empty subdir = $count "

#if count of empty subdirs is 0 exit the script 
if [ $count -eq 0 ]
then
echo "Exiting the script as there are no subdirs to delete "
exit 1
fi

#Validating dir parameter
if [ $# -eq 0 ]
then
echo "No parameters detected"
exit 1
fi

#Change dir to the dir to the parameter dir
cd $1

#Cleaning the log file
echo "" >> log.txt
echo "Checking $1 for empty subdirs"

#Count number of subdirs
count=`find . -type d | while read d
do [ $(( $(ls -a1 $d | wc -l) >= 3 )) == 0 ] && echo $d
done | wc -l`
echo "Number of empty subdir in $1 = $count " > log.txt

#If count of empty subdirs is 0 exit the script
if [ $count -eq 0 ]
then
echo "Exiting the script as there are no subdirs to delete " >> log.txt
echo "`cat log.txt`"
mailx -s "Empty subdirs deleted at $1 on `date`" somone@somesite.com < log.txt
exit 1
fi

#Displaying all empty subdirs
find . -type d | while read d; do [ $(( $(ls -a1 $d | wc -l) >= 3 )) == 0 ] && echo $d; done >> log.txt

#Deleting all the empty subdirs
find . -type d | xargs rmdir -ps
echo "All the empty subdirs in $1 are deleted successfully" >> log.txt
echo "`cat log.txt`"

#Sending email to team
mailx -s "Empty subdirs deleted at $1 on `date`" someone@somesite.com < log.txt