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1. Sequential Execution with ;

Explanation

The semicolon (;) allows you to run multiple commands one after another, regardless of whether each command succeeds or fails. Commands execute sequentially (one at a time).

Syntax

command1; command2; command3

Examples

date; pwd; cal
echo Hello; echo World

Lab Steps

1. Open a terminal.

2. Run:

   date; pwd; whoami
   
   

3. Observe that all three commands run in order, even if one fails.

Tips & Warnings

• Use ; when you want commands to run independently.
• Unlike &&, it does not check if the previous command succeeded.

2. Background Execution with &

Explanation

The ampersand (&) runs a command in the background, allowing the next command to start immediately (in parallel). This is useful for long-running tasks.

Syntax