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    Starting points: (RE)Learning Linux commands

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    • S
      scottalanmiller
      last edited by

      To see disk space utilization use df -h

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      • S
        scottalanmiller
        last edited by

        To see processes running in a nice, "live" table use top

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        • G
          gjacobse
          last edited by

          CentOS on C@C and local
          LinuxMint

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          • S
            scottalanmiller
            last edited by

            Which CentOS? Version matters a bit.

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            • S
              scottalanmiller
              last edited by

              First thing to do with any CentOS...

              yum -y install epel-release
              
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              • S
                scottalanmiller
                last edited by

                In CentOS you have YUM to make things easy. To install any software you just use...

                yum install softwarename
                
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                • S
                  scottalanmiller
                  last edited by

                  And to fully update your system just run....

                  yum update
                  
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                  • S
                    scottalanmiller
                    last edited by

                    Be sure to install sysstat (System Stats) and htop (Horizontal TOP? Honestly, no idea what it stands for.)

                    yum -y install sysstat htop
                    
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                    • S
                      scottalanmiller
                      last edited by

                      Once you have sysstat installed and it has sat around for ten minutes or more you will start to get details in your sar reports. This is one of the most important tools in your Linux arsenal. Once it has sat around you can see all kinds of details as to how it has been running....

                      sar
                      
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                      • C
                        coliver @scottalanmiller
                        last edited by

                        @scottalanmiller said:

                        Be sure to install sysstat (System Stats) and htop (Horizontal TOP? Honestly, no idea what it stands for.)

                        yum -y install sysstat htop
                        

                        From http://hisham.hm/htop/index.php?page=faq:

                        What does the 'h' in 'htop' stand for?

                        Well, the short explanation is a little obvious: the "h" stands for "Hisham", my name. 🙂

                        The long explanation is that what inspired me to write htop was pinfo, an improved man and info reader that adds lots of features (in my machines 'man' is an alias to 'pinfo -m'). It was written by a guy called Przemek Borys. Since 'pinfo' was "a better info" and he named it "pinfo" ("Przemek's Info"), I decided to try to make "a better top" so I called it "htop" ("Hisham's top"). So yes, it is after my own name, but it's also a homage to another nice piece of software!

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                        • S
                          scottalanmiller
                          last edited by

                          And of course the uptime command is super handy.

                          -bash-4.2$ uptime
                           14:39:39 up 6 days, 16:17,  1 user,  load average: 0.27, 0.16, 0.15
                          
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                          • G
                            gjacobse
                            last edited by

                            Yum -
                            So one of the goals is to have ManageEngine running. I've uploaded the .bin file, WHile I know I didn't need to.. it's done..

                            would it be

                            yum - y install (filename)?

                            C S 2 Replies Last reply Reply Quote 0
                            • C
                              coliver @gjacobse
                              last edited by

                              @g.jacobse said:

                              Yum -
                              So one of the goals is to have ManageEngine running. I've uploaded the .bin file, WHile I know I didn't need to.. it's done..

                              would it be

                              yum - y install (filename)?

                              http://www.manageengine.com/products/service-desk/help/adminguide/introduction/installation-linux.html#lin2

                              While I think YUM has a local installation option, I don't think it will work with bin files.

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                              • S
                                scottalanmiller @gjacobse
                                last edited by

                                @g.jacobse said:

                                Yum -
                                So one of the goals is to have ManageEngine running. I've uploaded the .bin file, WHile I know I didn't need to.. it's done..

                                would it be

                                yum - y install (filename)?

                                @g.jacobse said:

                                Yum -
                                So one of the goals is to have ManageEngine running. I've uploaded the .bin file, WHile I know I didn't need to.. it's done..

                                would it be

                                yum - y install (filename)?

                                @g.jacobse said:

                                Yum -
                                So one of the goals is to have ManageEngine running. I've uploaded the .bin file, WHile I know I didn't need to.. it's done..

                                would it be

                                yum - y install (filename)?

                                A bin is a binary, like a Windows installer. It's not an RPM, which is an installation file. To install a binary, on any OS, just run it.

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                                • G
                                  gjacobse @scottalanmiller
                                  last edited by

                                  @scottalanmiller
                                  Not sure why that quoted three time...

                                  I feel I hear Foghorn Leghorn's voice here... "No no no son,.. your don't it all wrong..."

                                  doingitwrong.png

                                  ? StrongBadS 2 Replies Last reply Reply Quote 0
                                  • ?
                                    A Former User @gjacobse
                                    last edited by A Former User

                                    @g.jacobse did you make it executable? Chmod +x file.bin
                                    then run it as ./file.bin

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                                    • C
                                      coliver
                                      last edited by

                                      should read:

                                      ./ManageEngine_ServiceDesk_Plus_64bit.bin
                                      

                                      You may also have to do chmod +x filename.

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                                      • StrongBadS
                                        StrongBad @gjacobse
                                        last edited by

                                        @g.jacobse said:

                                        @scottalanmiller
                                        Not sure why that quoted three time...

                                        I feel I hear Foghorn Leghorn's voice here... "No no no son,.. your don't it all wrong..."

                                        doingitwrong.png

                                        You are attempting to use a relative path, but the file is not in your path so it can't find it.

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                                        • J
                                          JaredBusch @scottalanmiller
                                          last edited by JaredBusch

                                          @scottalanmiller said:

                                          First thing to do with any CentOS...

                                          yum -y install epel-release
                                          

                                          I completely disagree with this statement because it implies that the EPEL is required. Most of my servers are CentOS 7 minimal and do not have EPEL.

                                          There is NEVER a reason to always add stuff. There are often good reason for most servers, but there is never ALWAYS a reason.

                                          In fact Scott, this is completely contrary to your constant preaching that people should always do things because they are needed and not because they just should because some random internet person said so.f

                                          ? S 2 Replies Last reply Reply Quote 0
                                          • ?
                                            A Former User @JaredBusch
                                            last edited by

                                            I would make sure you install NTP as well for server, with VMs this becomes even more important.

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