Adding a directory to path
you can prepend a directory to PATH using
> PATH=/path/to/dir:$PATH
you can append a directory to PATH using
> PATH=$PATH:/path/to/dir
you can add multiple at once as well
> PATH=$PATH:/path/to/dir1:/path/to/dir2
> PATH=/path/tp/dir1:/path/to/dir2:$PATH
> PATH=/path/to/dir1:$PATH:/path/to/dir2