How to use regular expressions

    - Do you need to find specific files in your file system easily to perform operations on them (e.g. backup, rename, etc.)?


    - Do you need to select field values that contain complex substrings?


    - Do you need to extract a list of source files from your QlikViev script?


    - Do you need to search for specific text using complex rules, but you don't know how?


    Why not use regular expressions?