This shell script is designed for a specific task required for our server. So sharing the script with Tecadmin readers. It might be helpful for you. Requirement Our requirement is to copy all files created in directory to other directory with same directory structure. Script will run on a regular interval, search for all...
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...
You can use date command on Linux shell script to get current Date and Time. The date command is the part of the Linux Coreutils package. This tutorial will help you to get the current date and time in a shell script. Uses of date Command: Simple date command returns the current date and...
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,...
Some times you may require to extract filename and extension in different variables to accomplished a task in bash shell programming. This article will help you to extract filename and file extension from a full file name or path. Let’s follow the below steps: 1. Get filename without Path First remove the full file...
Question – How to add [Y/n] confirmation in our own shell scripts? How to take input from the user as Yes/No/Y/N in bash? 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 the remaining steps...
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 operations. For a good programmer, you should use these functions before doing any operations on the file. 1. Test read permission: Below script will check if the given file has read permission for currently logged in user. This...
While working with bash shell programming, when you need to read some file content. It is good to test that the given file exits or is not empty. This will safe your script from throwing errors. This article will help you to test if the file exists or not and the file is empty...