Advanced Computing


In addition to my previous post I would also like to explain the most commonly used Linux commands.

Once again I will only explain the command. I will not define all the possible options. So also this time, if you need more information about a command, drop a post and I’ll get back to you with more info ;-).

Good, off we go:

  • adduser: adds a user to the system
  • addgroup: adds a group to the system
  • chgrp: change the group ownership of an item
  • chmod: change the access permission of an item
  • chown: change the owner of an item
  • cp: copy file(s) from one location to another
  • crontab: schedule a command to run at a later time
  • echo: same as in windows. Outputs a value
  • df: displays free diskspace
  • dir: displays a list of directories in a folder
  • find: search fo files that match the desired criteria.
  • ftp: same as in windows. FTP to a location
  • gzip: compression tool in linux
  • help: displays help… for linux
  • ifconfig: displays the configuration for the network devices
  • kill: kill a process by ID
  • killall: kill a process by name
  • ls: list information about items in a folder
  • man: displays the help manual
  • mkdir: creates a directory
  • mount: mounts a file system
  • mv: move or rename files or directories
  • nohup: run a command immune to hangups (means that you’ll get your terminal back)
  • passwd: change password of a user
  • ping: test the connectivity to another network device
  • ps: show the process status
  • reboot: reboots the system
  • rm: remove file(s)
  • rmdir: removes directory
  • shutdown: indeed…
  • su: substitude user id
  • sudo: execute command as other user
  • top: lists running processes on the server
  • vi: this is the build in text editor in linux
  • whoami: displays the currently logged in user
  • wget: download something from a website or an ftp

This is only a subset of the available linux commands.

Good luck! ;-)

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