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Let's say; Script has function f1 defined. Script needs to call f1 to use. How do I do that? I searched online, it says I have to edit some PATH vairable, but does it mean global PATH or is there any PATH specifically used only in bash?

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That will make the function available to be called within

The source command (also known as the . command) executes in's shell, so if you only want that function, you'll have to extract it into, and both and will have to source

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