What is the use of shell script in Linux?

SHELL SCRIPTING is writing a series of commands for the shell to execute. It can combine lengthy and repetitive sequences of commands into a single and simple script, which can be stored and executed anytime. This reduces the effort required by the end user. Write some code.Click to see full answer. In this manner, what is used for in shell script?Shell scripts are commonly used for many system administration tasks, such as performing disk backups, evaluating system logs, and so on. They are also commonly used as installation scripts for complex programs.Also Know, what is #! In shell script? #! defines the starting of the script execution. It helps in choosing the correct shell, so that some of the commands incompatible to a particular shell don’t fail. When the execution starts, the script searches for the shell in the directory (generally /bin) and it picks up the shell mentioned with #! how do I run a shell script in Linux? Steps to write and execute a script Open the terminal. Go to the directory where you want to create your script. Create a file with . sh extension. Write the script in the file using an editor. Make the script executable with command chmod +x . Run the script using ./. What is $? Bash?Bash is a command processor that typically runs in a text window where the user types commands that cause actions. Bash can also read and execute commands from a file, called a shell script.