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 $HOME/.bashrc
export PATH=$HOME/bin/:$PATH
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.