Linux Admin Commands III

  1. test: It is used to check file types and compare values. It is mainly used in conditionals on shell script.
  2. kill: It is used to terminate the process manually. When the command is executed, a signal is sent to the process or a process group causing them to terminate. You need to specify the process ID (PID) with the command to terminate the process.
  3. nohup: It is the short form of no hang up. It keeps the processes in a running state even if the user exits the terminal or shell.
  4. dd: It stands for data duplicator. It is used to convert and copy files which are passed to it as arguments.
  5. su: It allows the user to execute commands with the privileges of another user, which by default is a root user. You will have to enter a password and, if authenticated, you can use the privileges of another user.



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