Apple has got very nice bash scripting manual here: https://developer.apple.com/library/content/documentation/OpenSource/Conceptual/ShellScripting/Introduction/Introduction.html
Check the security and AWK sections.
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Apple has got very nice bash scripting manual here: https://developer.apple.com/library/content/documentation/OpenSource/Conceptual/ShellScripting/Introduction/Introduction.html
Check the security and AWK sections.