File directory functions for GP/PARI (Episode #8) 

One Minute One-liners for the curious: https://www.youtube.com/@1minute1liners

In this YouTube short from One Minute One-liners for the curious(@1minute1liner), I explain how to add a shadow working directory that can be changed, using manipulation of the PARI path. I also explain how to manipulate path strings using PARI's quirky string functions.

Below is a set of file functions that use a shadow working directory to implement various file