《问》How to create a shell script on Ubuntu/MacOS?

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《问》

How to create a shell script on Ubuntu/MacOS?


create a bash script 

nvim hello.sh

edit the file "hello.sh"

#!/bin/bash
echo "Hello, World!" 
echo "Knowledge is power."

set execute permission for this script hello.sh

chmod +x hello.sh

run the script 

./hello.sh

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