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Linux filesystem/shaare/yL92RA

  • linux
  • linux

Directory Description
/boot Grub.cfg
/root home of root
/dev system device (mouse, keyboard)
/etc configuration files
/bin → /usr/bin everyday user commands
/sbin → /usr/sbin system/filesystem commands
/opt third party app (not part of os)
/proc running process (only in memory)
/lib → /usr/lib C prog lib
/tmp temporary folder
/home user dir
/var system logs
/run system daemon → store temporary runtime / PID file
/mnt mount external file system
/media CDrom
8 months ago Permalien
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  • Bash : First Line of Script #!/bin/bash → defines the shell interpreter Comments Use # for commenting Common Elements Commands: echo, cp, etc. Statement...
  • SSH and DNS : SSH ps -ef | grep sshd → check ssh systemctl status sshd DNS PTR record → IP to hostname A record → hostname to IP CNAME record → hostname to...
  • Systemctl, process management : Basic System Info Commands uptime → time now, up since, numbers of users, load average hostname → ip hostname uname -a → current OS and kernel info w...
  • Screen & Tmux : Screen (Terminal Multiplexer) Multi-terminal sessions in one window Alt+a | → split vertical Alt+a Shift+s → split horizontal Alt+a Tab → switch wind...
  • Package Management : System Updates & Software Install dnf (yum) → RedHat → /etc/yum.repos.d apt-get → Debian rpm → RedHat package management standalone package to ...


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