Script Permissions

Core Idea

Executable permission lets the system run a script directly.

Practice Alone

Run with bash script.sh, add chmod +x, then run ./script.sh.

Done When

You know the difference between interpreting a script and executing it.

Go Deeper

• Shebang explains what direct execution reads from the first line.
• Permissions explains executable bits.
• Number Bases: Decimal, Hexadecimal, Octal explains numeric modes such as 755.