I have a script saved, but I don't want to have to change my working directory to where it is everytime I want to use it. Is there somewhere I can save a link or edit a list to make this work from any directory? Using Slack 9.1 and primarily the BASH shell.

I'm not sure if I understood the question, but you can create a link with "ln -s /whatever.your.program.is /usr/bin/program.name" and it should run from everywhere (?).

Good luck!

From anywhere in the system, all you need to do is enter the full path to the executable file. For example. Let's say I open a term window and I'm in my home directory. I want to run an app in /sbin. I could cd to /sbin. Or, I could give the command, from my home directory: /sbin/<command-name>, where <command-name> is the name of the command I want to run, and it will run.
Basic rule:
If you are in the directory in which the executable is located: use ./<command>. The ./ tells the shell that the executable is in the current working directory.
Otherwise, from anywhere in the system, give the full path to the executable, and it will run.

You should look into the $PATH variable. Take a look at this article.

lol, I'm going to give the third different solution to this problem.

# Create a binary directory for your own scripts. This is common in almost
# all unix systems and is about the only way to easily get it working when
# you don't have root access (and it is a good idea anyway to keep user
# scripts away from the system utilities).
mkdir ~/bin
mv /path/to/script ~bin/

# Check your path and make sure $HOME/bin is in it. On most systems,
# this is the case (as this solution is so common that most systems are
# setup expecting users to add programs to $HOME/bin).
echo $PATH

# If it isn't run:
PATH=$PATH:$HOME/bin; export PATH

And remember to add it to .profile where your path is listed.