Install RPM in CentOS RPM Package Manager (RPM), originally called the Red-hat Package Manager, is a program to install or uninstall software packages or libraries in Linux. To install RPM in CentOS, first download the RPM: [roop@localhost ~]$ wget ftp://rpmfind.net/linux/centos/6.6/os/x86_64/Packages/opencv-2.0.0-12.el6.x86_64.rpm now check in your directory opencv-2.0.0-12.el6.x86_64.rpm will be available for installation.To install RPM in CentOS…
Here is the simple shell script to rename all files in the folder with increasing number. In below example I am going to rename all jpg image with increasing number. #!/bin/bash a=1 for i in *.jpg; do new=$(printf “%04d.jpg” “$a”) mv — “$i” “$new” let a=a+1 done Output: 0001.jpg 0002.jpg 0003.jpg 0004.jpg 0005.jpg 0006.jpg 0007.jpg…
Shell script to run mysql query from command line without login into mysql command prompt. You can use these shell script for quickly execution of MySQL query from a Linux Shell. Method 1: #!/bin/bash #Script to run mysql query from command line #Db Connection. DB_USER=’root’ DB_PASSWD=’mypwd’ DB_NAME=’mydb’ #Prepare sql query QUERY=’select * from employee’ #Command to connect…
Here is the simple shell script check the MySQL service status, if MySQL service is not running then start MySQL service. #!/bin/bash SERVICE=’mysql’ if ps ax | grep -v grep | grep $SERVICE > /dev/null then echo “$SERVICE service is running.” else echo “$SERVICE is not running” service mysqld start fi Let me describe about…
Run Jenkins build from command is very simple in Linux system. Jenkins has support to command line client that allows you to access Jenkins from command line. To Trigger Jenkins build from command line some prequiste are there Go to jenkins dashboard in Home page ( e.g http://localhost:8080/ ) -> Manage Jenkins-> Configure Global Security…
