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    Starting points: (RE)Learning Linux commands

    Scheduled Pinned Locked Moved IT Discussion
    32 Posts 6 Posters 4.8k Views
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    • scottalanmillerS
      scottalanmiller
      last edited by

      To see memory utilization, use free -m

      1 Reply Last reply Reply Quote 0
      • scottalanmillerS
        scottalanmiller
        last edited by

        To see disk space utilization use df -h

        1 Reply Last reply Reply Quote 0
        • scottalanmillerS
          scottalanmiller
          last edited by

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

          1 Reply Last reply Reply Quote 0
          • gjacobseG
            gjacobse
            last edited by

            CentOS on C@C and local
            LinuxMint

            1 Reply Last reply Reply Quote 0
            • scottalanmillerS
              scottalanmiller
              last edited by

              Which CentOS? Version matters a bit.

              1 Reply Last reply Reply Quote 0
              • scottalanmillerS
                scottalanmiller
                last edited by

                First thing to do with any CentOS...

                yum -y install epel-release
                
                JaredBuschJ 1 Reply Last reply Reply Quote 0
                • scottalanmillerS
                  scottalanmiller
                  last edited by

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

                  yum install softwarename
                  
                  1 Reply Last reply Reply Quote 0
                  • scottalanmillerS
                    scottalanmiller
                    last edited by

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

                    yum update
                    
                    1 Reply Last reply Reply Quote 0
                    • scottalanmillerS
                      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
                      
                      coliverC 1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        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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                        • coliverC
                          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!

                          1 Reply Last reply Reply Quote 1
                          • scottalanmillerS
                            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
                            
                            1 Reply Last reply Reply Quote 1
                            • gjacobseG
                              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)?

                              coliverC scottalanmillerS 2 Replies Last reply Reply Quote 0
                              • coliverC
                                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.

                                1 Reply Last reply Reply Quote 0
                                • scottalanmillerS
                                  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.

                                  gjacobseG 1 Reply Last reply Reply Quote 1
                                  • gjacobseG
                                    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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                                      • coliverC
                                        coliver
                                        last edited by

                                        should read:

                                        ./ManageEngine_ServiceDesk_Plus_64bit.bin
                                        

                                        You may also have to do chmod +x filename.

                                        1 Reply Last reply Reply Quote 1
                                        • 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.

                                          1 Reply Last reply Reply Quote 0
                                          • JaredBuschJ
                                            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

                                            ? scottalanmillerS 2 Replies Last reply Reply Quote 0
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