Have you ever encountered a situation where you tried to run a script on your Ubuntu system using sudo but ended up with a "command not found" error message? If yes, don't worry, you are not alone. This is a common error faced by many Ubuntu users, which usually occurs when the script you are trying to run is not located in one of the directories specified in the PATH environment variable. Let's take a deeper look into this issue and how to fix it.
When you run a command on your Linux system, the shell looks for the executable file associated with that command in a list of directories specified in the PATH environment variable. When you use sudo to run a command as a superuser, you are actually switching to the root user environment, which may have a different PATH variable than your default user account. This means that if your script is not located in one of the directories listed in the root user's PATH, it won't be found and executed, resulting in the "command not found" error message.
So, how can you fix this error? The simple solution would be to provide the full path to the script when running it with sudo, instead of relying on the PATH environment variable. For instance, if your script is located in the "/home/user/scripts/" directory and its name is "abc.sh", you can run it using sudo by typing the following command in the terminal:
Alternatively, you can modify the root user's PATH variable to include the directory where your script is located. To do this, you can add the following line at the end of the "/root/.bashrc" file:
This will append the "/home/user/scripts/" directory to the root user's PATH variable, ensuring that any executable file located in that directory can be found and executed using sudo.
In conclusion, the "command not found" error message when running a script with sudo on Ubuntu can be easily fixed by providing the full path to the script or by modifying the root user's PATH to include the directory where the script is located. By following these simple steps, you can avoid this common error and ensure that your scripts run smoothly on your Ubuntu system.
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