source Command

• Reads and execute commands from FILENAME in the current shell

• File does not need to have executable permission.

• Alias used for source command is .

  

• Note all commands are executed in the same shell.

  

  • ./s1.sh creates a child shell to execute commands.

• Sourcing vs Running script

  

$0

• Displays command used to invoke the script.

  

<aside> 💡 Use the below command and search for RE /special parameters to get info on parameters like $$, $0, $@...

man bash

</aside>

test

test EXPRESSION

or