Student Account clean up script

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Execute the following set of steps via a Terminal to clean the Student accounts in Linux machines:

• Login to machine as root. 
• If logged in as “beck” then type “sudo su – root” to be root user.
• Download and copy the script embedded below to “/root” of the machine.
• Changed current working directory to “/root”.
• Enable execution rights for this script –> “chmod 755 studentAccountClean.sh”
• Invoke the script by typing “./studentAccountClean.sh”

# This script is used to reset Student accounts in a Linux machine.

# Created by Vimal Menon on 2 January 2017

TIMESTAMP=`date ‘+%m-%d-%Y  %H:%M %p’`

# Standard folders in a Student account

export SCRIPTHOME=$(pwd)

export STUDENTHOME=/home/student

# Temporary files created to aid the cleanup activity

FOLDERLIST=FolderDeleteList.txt

FILESLIST=FilesDeleteList.txt

COMPLETIONTIME=StudentAccCleanupTime.txt

# List of Standard folders which should not be deleted. However, its contents should be cleared.

StdFolders=”Desktop Documents Downloads Music Pictures Public Templates Videos”

# Getting the list of Folders and Files at STUDENTHOME

cd $STUDENTHOME

find * -maxdepth 0 -type d > $SCRIPTHOME/$FOLDERLIST

find * -maxdepth 0 -type f > $SCRIPTHOME/$FILESLIST

# If Directories or Filenames have special characters such as (,),[,]{,}, then an escape sequence is introduced to facilitate deletion.

sed -e ‘s/\\/\\\\/g’ -e ‘s/(/\\(/g’ -e ‘s/)/\\)/g’ -e ‘s/{/\\{/g’ -e ‘s/}/\\}/g’ -e ‘s/\[/\\[/g’ -e ‘s/]/\\]/g’ -e ‘s/ /\\ /g’ $SCRIPTHOME/$FOLDERLIST 

sed -e ‘s/\\/\\\\/g’ -e ‘s/(/\\(/g’ -e ‘s/)/\\)/g’ -e ‘s/{/\\{/g’ -e ‘s/}/\\}/g’ -e ‘s/\[/\\[/g’ -e ‘s/]/\\]/g’ $SCRIPTHOME/$FILESLIST

# Deleting folders created by Students from STUDENTHOME location

# Standard folders such as Desktop, Documents and so on are retained. Only their contents are deleted.

cat $SCRIPTHOME/$FOLDERLIST | while read LINE

do

if [[ “$StdFolders” == *”$LINE”* ]]

then

rm -rf $STUDENTHOME/$LINE/*

else

rm -rf — “$STUDENTHOME/$LINE”

fi

done

echo “——————>> The contents of the Standard folders have been deleted.”

echo “——————>> Except Standard folders, all other folders & their contents in $STUDENTHOME have been deleted.”

# Deleting files created by Students from STUDENTHOME location

cat $SCRIPTHOME/$FILESLIST | while read LINE

do

rm -f — “$STUDENTHOME/$LINE”

done

echo “——————>> Files in $STUDENTHOME have been deleted.”

# Cleanup of temporary files created

rm $SCRIPTHOME/$FOLDERLIST

rm $SCRIPTHOME/$FILESLIST

echo “Student account cleanup was carried out on : $TIMESTAMP” > $SCRIPTHOME/$COMPLETIONTIME

chmod 777 $SCRIPTHOME/$COMPLETIONTIME

echo “”

echo “Directories in $STUDENTHOME after deletion.”

echo “Please manually delete the files and directories that has special characters in their names.”

ls -ltr $STUDENTHOME