chmod

中級
1/6
user@linux:~/workspace$
chmod +x script.sh

Explanation

Adds execute permission for all users. The script can now be run with ./script.sh.

Options

-RChange permissions recursively
-vVerbose mode
-cReport only when changes are made
7rwx
6rw-
5r-x
4r--
0---
1#!/bin/bash
2echo "Hello, world!"