How to solve the problem of permission denied when executing .sh file under Linux

###Answer 1: This kind of situation is usually caused by insufficient file permissions. Under Linux, you can use the chmod command to modify file permissions. If you want to add executable permissions to the .sh file, you can use the following command: ```chmod+xfilename.sh``` where filename.sh is the name of the .sh file you want to execute. After executing this command linux execution permission, you should be able to execute your .sh file. If you still cannot execute the file linux execution permissions, it may be because you do not have sufficient permissions to execute the file. You can use the sudo command to execute the file as an administrator. Something like: ```sudo./filename.sh``` This will execute your .sh file as administrator. ###Answer 2: The permissiondenied error message appears when executing the .sh file under Linux. This is caused by the fact that the current user does not have execution permission for the .sh file. There are several ways to solve this problem: 1. Use the chmod command to change the permissions of the .sh file. Execute the following command in the terminal: chmod+x filename.sh. This will grant execution permission to the script file, and then execute the script file again. 2. Use sudo to execute the .sh file. Execute the following command in the terminal: sudosh filename.sh This will execute the .sh file with superuser privileges and requires the password of the current user.

3. Use absolute path to execute the .sh file. Execute the following command in the terminal: sh/file path/file name.sh This will directly use the absolute path to execute the .sh file without considering permission issues. 4. Make sure the directory where the .sh file is located is mounted and has execution permissions. Sometimes it may be that the directory where the .sh file is located does not mount Red Hat Linux correctly, making it difficult to execute the .sh file. In summary, the permissiondenied problem occurs when executing .sh files under Linux, mainly due to insufficient execution permissions. This problem can be solved by changing the permissions of the .sh file, using the sudo command, executing the .sh file using an absolute path, or detecting the directory mounting situation. ###Answer 3: In Linux systems, "Permissiondenied" appears when executing a .sh file, indicating that there is no executable permission. This is because in Linux systems, file read, write and execution permissions need to be set accordingly before they can be executed. To solve this problem, you can take the following methods: 1. Grant executable permissions to the .sh file: use the chmod command to change the file permissions. Enter "chmod+x filename.sh" in the terminal, where filename is the name of the .sh file you want to run. This will give executable permissions to the .sh file. 2. Use the absolute path to run the .sh file: Enter the absolute path of the .sh file in the terminal, such as "/home/user/file.sh", which will bypass the execution permission issue.

3. Use the sudo command to run the .sh file: Enter "sudosh file name.sh" to execute the .sh file. The sudo command can use superuser (root) permissions to run files and bypass permission restrictions. It should be noted that for free Linux hosts, you need to enter the administrator password to use the sudo command, but use the sudo command with caution to ensure that you trust the source and content of the .sh file. In summary, by granting executable permissions, using absolute paths, or using the sudo command, you should be able to solve the "permissiondenied" problem when executing .sh files under Linux.

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