For example, if we have shell script named "myshellscript.sh" (with execute permission) we can make it run in the current working directory with the commands

$ sh myshellscript.sh (or) $ ./myshellscript.sh

If the shell scripts are stored in an executable path, it will save us from typing extra keystrokes. To find the paths that are setup, type

$ echo $PATH /usr/bin: /usr/local/bin

In order to achieve the desired results, You can i) save the shell scripts under /usr/local/bin as that path is already listed in the system path ii) create a folder and add the path to the system path variable

Create a directory "scripts" under /usr/local $ mkdir/usr/local/scripts

Move the script "myshellscript.sh" to /usr/local/scripts

$ export PATH=$PATH:/usr/local/scripts

Now, type $ myshellscript.sh and the shell script will execute as expected.

To set the path permanently, you have to edit .bashrc file.