Depending on the shell you need to update what is called upon start of your shell. For bash you need to insert the following in $HOME/.bashrc
This makes it possible for you to add files to $HOME/bin and they become part of the runnable.
Let's say you have a file called hugo you want to make executable/runnable you can do that by:
mkdir $HOME/bin cp hugo $HOME/bin/ chmod +x $HOME/bin/hugo
You can usually find your shell by executing:
ps -p $$ # or echo $0 # or pstree $$
After this you have to look up the equivalent of the startup script (bashrc for bash) for your shell.