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    Bad -c option

    Scheduled Pinned Locked Moved General pfSense Questions
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    • H
      hayati
      last edited by

      Hi everybody,

      I have very simple command fails on pfSense 2.3.4. This command can be successfully executed on FreeBSD 10.3.
      My shell is "sh".

      su -m testuser -c 'sh -c "df -h"'

      it gets:

      Bad -c option

      error.

      where testuser is any user.

      Can you please provide correct version of command or the reason of the above error?

      Thanks

      1 Reply Last reply Reply Quote 0
      • H
        heper
        last edited by

        
        [2.3.4-RELEASE][root@pfsense]/root: su -m admin -c 'sh -c "df -h"'
        Filesystem     Size    Used   Avail Capacity  Mounted on
        /dev/da0s1a     50G    2.4G     44G     5%    /
        devfs          1.0K    1.0K      0B   100%    /dev
        /dev/md0       3.4M    148K    3.0M     5%    /var/run
        devfs          1.0K    1.0K      0B   100%    /var/dhcpd/dev
        [2.3.4-RELEASE][root@pfsense]/root: 
        
        

        seems to work for me

        1 Reply Last reply Reply Quote 0
        • H
          hayati
          last edited by

          Thanks for your reply,

          Yes, if you run command directly in related pfsense terminal (physical or virtual) it works.

          But if you access pfSense using ssh and run the same command you'll get "Bad -c option" error.

          su -m admin -c 'sh -c "df -h"'

          Bad -c option

          This is the problem, and I guess you run commands directly to your pfSense machine. If so, can you please give a try with ssh?

          Thanks,

          1 Reply Last reply Reply Quote 0
          • H
            heper
            last edited by

            That was from SSH session….

            1 Reply Last reply Reply Quote 0
            • H
              hayati
              last edited by

              Interesting, I can reproduce error everytime.

              Steps to reproduce:

              Setup : pfSense-CE-2.3.4-RELEASE-amd64.iso (fresh install), I used KVM.
              Just after installation and without any updates applied, I run previous command from SSH and KVM instance GUI.

              In SSH session, this error message can be seen every time I run command.

              I've updated to 2.3.4_1 and 2.4.0 problem is still there in both versions.

              Thanks,

              1 Reply Last reply Reply Quote 0
              • H
                heper
                last edited by

                try a different ssh client ? maybe some escape characters get fucked somehow ?

                1 Reply Last reply Reply Quote 0
                • H
                  hayati
                  last edited by

                  I've tried with putty, gnome-terminal (on ubuntu 16.04), and MacOS terminal (all in different physical machines).

                  They all gave same error.

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                  • KOMK
                    KOM
                    last edited by

                    The problem is you have to be root for it to work.  If you login as admin, you get the error.

                    1 Reply Last reply Reply Quote 0
                    • H
                      hayati
                      last edited by

                      Yes, it DOES work with root.

                      Thank you so much. But, If admin is also a kind of (and actually is) root user (it has 0 id) why couldn't admin able to run this command?

                      Thanks,

                      1 Reply Last reply Reply Quote 0
                      • jimpJ
                        jimp Rebel Alliance Developer Netgate
                        last edited by

                        @hayati:

                        Yes, it DOES work with root.

                        Thank you so much. But, If admin is also a kind of (and actually is) root user (it has 0 id) why couldn't admin able to run this command?

                        Thanks,

                        The "admin" account shell is locked into the menu, it can't run commands like that (nor can it do scp)

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                        • H
                          hayati
                          last edited by

                          That makes sense.

                          Thanks all!

                          1 Reply Last reply Reply Quote 0
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