Shell Programming

Shell programming is writing scripts for Unix/Linux shells to automate tasks, manipulate files, manage processes, and perform system administration. It supports variables, control flow, loops, and debugging. Bourne shell (`sh`), Bash (`bash`), and POSIX shells are commonly used.

📄️ Literals

Literals are fixed values in scripts, such as numbers, strings, or characters.

📄️ Variables

Variables store data that scripts can reference and manipulate.

📄️ Loops

Loops allow repeated execution of commands.

📄️ Conditionals

Conditionals control execution flow based on test results.

📄️ Debugging

Debugging helps identify errors in shell scripts.