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Script Execution Permissions.md

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Problem Statement

In a bid to automate backup processes, the xFusionCorp Industries sysadmin team has developed a new bash script named xfusioncorp.sh. While the script has been distributed to all necessary servers, it lacks executable permissions on App Server 3 within the Stratos Datacenter.

Your task is to grant executable permissions to the /tmp/xfusioncorp.sh script on App Server 3. Additionally, ensure that all users have the capability to execute it.

Solution

1. Connect to App Server 3

Start by connecting to App Server 3 via SSH using the banner account.

ssh banner@stapp03

2. Switch to the Superuser (Root)

Once logged in, switch to the root user to modify the script's permissions.

sudo su

3. Check the Current Permissions

Verify the current permissions of the script to understand its current state.

ls -al /tmp/xfusioncorp.sh

4. Grant Executable Permissions

Update the permissions of the script so that all users can execute it.

chmod 755 /tmp/xfusioncorp.sh
  • Explanation:
    • chmod 755: This command sets the permissions of the file to rwxr-xr-x.
      • rwx (read, write, execute) for the owner (root).
      • r-x (read, execute) for the group (root).
      • r-x (read, execute) for others (all users).

5. Verify the Permissions

Check the permissions again to ensure that they have been updated correctly.

ls -al /tmp/xfusioncorp.sh

6. Execute the Script

Run the script to ensure it works as expected.

. /tmp/xfusioncorp.sh