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gawk: Extension Example

 16.6 Example: Some File Functions
      No matter where you go, there you are.
                          -- _Buckaroo Banzai_
    Two useful functions that are not in 'awk' are 'chdir()' (so that an
 'awk' program can change its directory) and 'stat()' (so that an 'awk'
 program can gather information about a file).  In order to illustrate
 the API in action, this minor node implements these functions for 'gawk'
 in an extension.


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