Linux | File Cleaner | bash script

Recently we setup a Linux server for keeping backups & decided not to use certain switches while the backups were synched from Windows machines. This created an additional situation like maintaining the storage space based on different business requirements and using our own solutions. So the following script was developed. Please note, this script has been tested on CentOS/RHEL/OEL 7 environment & executed with root privileges.


# Cleanup tool for Linux Samba Server
# Rajesh Thampi
# Date: Sep 2021
# Instructions
# Copy the script to a file with .sh extension
# Make it executable (eg: chmod +x
# Execute! (eg:./ 1>filecleaner.log 2>filecleaner.err
# And be careful :)

function purgeit(){
# local DIRNAME="$1"
# local FILETYPE="$2"

cd "$1"
echo "Entered Directory: ${PWD}"
#Check whether $3 number of files matching the patterns provided by $2 are present those were created within $4 days, then delete all files older than $4 days
if [ $(find -maxdepth 1 -name "$2" -type f -mtime -"$4" | wc -l) -ge $3 ]; then
local OBSFILECNT=$(find -maxdepth 1 -name "$2" -type f -mtime +"$4" | wc -l)
echo "There are ${OBSFILECNT} files & will be purged"
local obsfiles=$(find -maxdepth 1 -name "$2" -type f -mtime +"$4")

#The below loop is ONLY for logging purpose
#We'll delete all files matching the pattern in a single line command using "find"

        if [ $OBSFILECNT -gt 0 ]; then
        echo "Below Files will be deleted"
        for eachfile in "$obsfiles"
                echo "$eachfile"
                #find and delete will eliminate the need to treat files with space and other escape characters in the filenames.
                find -maxdepth 1 -name "$2" -type f -mtime +"$4" -exec rm -rf {} \;

#Call the function passing four variables: path, type of the files to purge, number of files to keep & age of the files
#those need to be deleted

#syntax: purgeit "/backup/server_sql" ("*.txt" OR "my*.php" OR "*" OR "*.*") 4 5
#example: purgeit "/backup/server_sql" "*.zip" 4 5
#You can call this function N number of times passing different paths and other values

Now let us see the logic in details.

Consider you have a path “/backup/server_sql” where your Microsoft SQL Server is uploading a full backup daily. As we are synching the backup files using ROBOCOPY from the Windows server without mirroring, the daily full backup files will start mounting in the Linux files server. Then we came up with a business plan to:

  • Keep minimum 4 number of most recent full backups for the SQL server in the Linux path those were created within last N number of days. If there are no files for last N days found, existing files will not deleted (gives an opportunity to investigate why there are no files uploaded to Linux file server)
  • Delete files those are 5 days or older from the Linux path after insuring minimum N number of files are within the repository.
  • Combined with a function send alert emails, this small snippet could function as both a storage maintenance and monitoring tool.

Interested about including email alerts? Let us know and will share the additional code with you exclusively.

Linux shell script file for Start/Stop Weblogic Services


This time we are sharing a shell script for starting/stopping Weblogic services. This shell script can

  1. Start Weblogic Admin Server (after starting Node Manager)
  2. Once the Admin server started, you can start the forms and reports services using the Admin Console
  3. Unless conflicts, you should able to access the Oracle enterprise manager console as well

Copy the content below in plain text file first, change the extension to .sh and set the execute permissions





[sourcecode language=”bash” gutter=”false” wraplines=”true”]

if [ -z "$1" ]; then
echo "You must supply either start or stop command while calling this script! correct usage: start|stop"

bold=`tput bold`
normal=`tput sgr0`

case "$1" in
echo "Starting Management Node & Weblogic Server 10.3.6"

echo "Starting NodeManager"

nohup $WLS_HOME/server/bin/ > /dev/null 2>&1 &

sleep 10

output=`ps -ef | grep -i nodemanager.javahome | grep -v grep | awk {‘print $2’} | head -1`

set $output


echo "Weblogic NodeManager Service was started with process id : ${bold}$pid${normal}"

echo "Starting WebLogic Domain"

nohup $MW_HOME/user_projects/domains/ClassicDomain/bin/ > /dev/null 2>&1 &

# Sleep until exiting
sleep 60
echo "All done, exiting"

################################Stopping the services##################################

case "$1" in
echo "Stopping Weblogic Server & Node Manager"

nohup $MW_HOME/user_projects/domains/ClassicDomain/bin/ > /dev/null 2>&1 &

sleep 30

# echo "Killing Nodemanager process now"

output=`ps -ef | grep -i nodemanager.javahome | grep -v grep | awk {‘print $2’} | head -1`
set $output
echo "Killing Weblogic NodeManager Service Process : ${bold}$pid${normal}"

kill -9 `ps -ef | grep -i nodemanager.javahome | grep -v grep | awk {‘print $2’} | head -1`

echo "All done, exiting"






If you have queries, please ask them using comments section.

for Windows7bugs


Install Google Chrome with YUM on Fedora, CentOS/Red Hat (RHEL) 6.2, Even on Oracle Enterprise Linux 6.3


Our intention is not to copy paste the entire content from another website most of the times, hence only the link to external website is provided here. Please note, if you follow the instructions properly, installing Google Chrome is a matter just few minutes.

To create google.repo do the following

as root

$cd /etc/yum.repos.d/

$touch google.repo

$gedit google.repo (or use vi/vim)

for 32-bit, add following block

name=google-chrome - 32-bit

for 64-bit, add following block (you may add both blocks to google.repo)

name=google-chrome - 64-bit


Save google.repo file

$yum install google-chrome-stable (Current release is 20.x) and the total download is around 41Mb) on installation it will consume a total of 120Mb on your HDD