An array is a data structure consist multiple elements based on key pair basis. Each array element is accessible via a key index number. This tutorial will help you to create an Array in bash script. Also, initialize an array, add an element, update element and delete an element in the bash script. Define...
After writing a simple shell script for MySQL database backup. This is our new advance bash script for MySQL database dump. This script will provide you to backup MySQL database and upload backups various remote locations like FTP, SFTP and Amazon s3 bucket. This script is available on our Github account with all supporting...
You can use date command on Linux shell script to get current Date and Time. This tutorial will help you to get current date time bash script. Uses of date Command: Simple date command returns the current date and time with the current timezone set in your system. [[email protected] ~]$ date Fri Mar 3...
Bash scripts are very useful for doing work easier. It also helps for task automation. This tutorial will help you to how to include bash script in other bash script. Create Sample Scripts For example, I am creating two scripts, first is config.sh which contains some variables. Second script is our main script main.sh,...
Question – How to add [Y/n] confirmation in our own shell scripts? Many times you have seen commands ask for confirmation [Y/n] or [Yes/No] input. This is a very useful part to know if a user wants to proceed with remaining steps for not. You can also add the same function to your script....
While working with the Linux systems, we used many of commands on daily basis. Most of the commands are available in binary format in /bin, /sbin , /usr/bin, /usr/sbin, etc directories. As a system administrator or student we wrote many of shell script to do few task or automate them. This article will help...
Logical OR & AND operations are very useful where multiple conditions are used in our programs (scripts). OR is used between two or multiple conditions. It returns true if any one of conditions returns as true. AND is used between two or multiple conditions. It returns true only if all the conditions returns as...
This is good to test a file has enough permission to do read, write or execute operation’s. For a good programmer you should use these functions before doing any operations on file. 1. Test if File has Read Permission: Below script will check if given file has read permission for current logged in user....
While working with bash shell programming, when you need to read some file content, It is good to test that given file is exits or not after that test if file is empty or not. This will safe your script from throwing errors. This article will help you to test if file exists or...
A Command-line Arguments are passed after the name of a program in command-line operating systems like DOS or Linux and are passed into the program from the operating system. Shell scripts also accept command line arguments similar to nix commands. Command line arguments are useful for passing input to script at runtime which has...