vtsingaras

IPTC Notes
    This document outlines some of my experiences with IPTC, both for my own
    reference, and for anyone else wishing to use this library.                             
                                                                                            
    "libiptc" is an internal library to "iptables". It is available as a
    package on some distros, and is compiled with the "iptables" tarball as
    well. Depending in "libiptc" should be a fairly simple process.

    "libiptc" itself only provides the fairly high level functions used to
    actually insert/remove/update/append a rule, but does not actually

sshaw

Internal Bash functions, useful when writing loadable builtins

• Find an environment variable
• Set an environment variable to a string value
• Set an environment variable to a string value if it's not already set
• Check if an environment variable is set
• Check if an environment variable is an array
• Get an environment variable that's an array
• Unset an environment variable
• Create an array