The installation and maintenance of a UNIX computer system are referred to as administrations. To keep the system functioning well, the system administrator will need to manage the software and hardware, which includes hardware configuration, software installation, kernel reconfiguration, and networking. Regardless of the sort of computers they have, identifying the most essential challenges and concerns that system managers encounter is simple. User accounts, system startup and shutdown, peripheral devices, system performance, and security are all issues that almost every system manager must deal with.

You’ll be developing your own Bash/Shell scripts from scratch in Unix DevOps. From exit statuses to the test command, if/else statements, loops, and file archiving, you’ll go through all of the major components that make up the bash script. When looking at Bash scripts, you will no longer be entirely perplexed, and you will have a working knowledge that will allow you to begin working with scripts on your own.

Shell scripts must include certain mandatory structures that instruct the shell environment what to do and when. Most scripts, however, are more complicated than the one above. After all, the shell is a full-fledged programming language with variables, control structures, and so on. A script is still just a series of commands executed in order, no matter how complex it becomes. The read command is used in the following script to take input from the keyboard, assign it to the variable PERSON, and eventually print it on STDOUT.