How to Solve Permission Denied Error in Linux Bash

1. Execute Bash Files in Linux
2. Change File Permission With the chmod Command

This article will introduce the cause of the permission denied error in Linux Bash and how to solve it.

This error is caused by the file not having the execute permission. We can change permissions by using the chmod command.

Below is the content of the bash file we will use in this example. Save it as example.sh.

echo "Hello, World!"

Execute Bash Files in Linux

First, try to execute the file. We get the Permission denied error.

Let’s check the permissions of our file.

ls -l example.sh

• r is for reading
• w is for write
• we need x to execute

Change File Permission With the chmod Command

The chmod command changes file mode bits. We can add the execute permission to the file with this command.

sudo chmod +x example.sh

After this, we can execute the file.

./example.sh

Instead of adding the execute permission to everyone, we can only add it to the user.

sudo chmod u+x example.sh