No matter where you go, there you are.
Two useful functions that are not in
awk program can change its directory) and
(so that an
awk program can gather information about a file).
In order to illustrate the API in action, this section implements
these functions for
gawk in an extension.
|• Internal File Description||What the new functions will do.|
|• Internal File Ops||The code for internal file operations.|
|• Using Internal File Ops||How to use an external extension.|