Garbage output is being displayed if a command executed is not valid\found in Red Hat Enterprise Linux 8

Solution Verified - Updated -

Issue

  • Shell will display some unnecessary\garbage outputs when an executed command is not a valid command.

    bash: nmap: command not found...
    Failed to search for file: Cannot update read-only repo
    
    or,
    
    bash: lsz: command not found...
    Failed to search for file: cannot update repo 'rhel-8-for-x86_64-appstream-rpms': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried; Last error: Status code: 404 for https://satellite.example.com/pulp/repos/fhlb_atl/nonprod/RHEL8/content/dist/rhel8/8.0/x86_64/appstream/os/repodata/repomd.xml
    

Environment

  • Red Hat Enterprise Linux 8.0

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