Unix.CheatSheet

Remove recursively a directory. This will wipe all the content in the folder.

###Linux

     $ rm -r directory  
    
  Change user password
     $ passwd username
  First time SSH key generation 
  
     $ ssh-keygen -t dsa
  User groups and permissions
  
    $ chown -v username somefile
    $ chnage ownership of files
    $ chown -Rv username somedir
    $ chgrp -Rv usergroup somedir


Mapping the filesystem

    $ Alias /path/to/dir/ /needed/location/

Run processes on background 
    $ nohup process/command  &
    
    
    
###Debian 

(purge) uninstall apt packages
    apt-get --purge remove <package>