In SAS Studio, when users share SAS programs as .sas files in SAS Content, they don't have standard file functionalities such as searching for given string in file contents.
For example, I might want to find files *.sas containing substring such as out.company_owner or files *.cfg containing substring PROXY.
in general, we'd like to have a function for finding regular expression within files of given mask in a given SAS Content folder recursively
