Command
| Description
|
| cd | Return to your home directory |
| cd .. | Move one directory level up |
| cd <directory name> | Move to the directory with name <directory name> |
| chmod ugw <filename> | Change file rights. Ugw is an octal number defining the file/directory rights for the user, group and/or world. Example: 755 (rwxr-xr-x) means user has full rights, group and world are only allowed to read and execute. |
| cp <source> <destination> | Copy file <source> to file <destination> |
| finger <username> | Find out more about a user with the name <username> |
| grep string filename | Looks for a string in a filename |
| kill -9 <process number> | Kill (stop) process with number <process number>. Use the ps command to find the process number of the job you want to stop. |
| ls | Show the content of your current directory |
| ls -al | Show the content of your current directory, extensively |
| man <command> | Show manual page of <command> |
| mkdir <directory name> | Create a directory named <directory name> |
| more <filename> | Show content <filename> page by page. Press Space bar for next page, q to quit. |
| mv <source> <destination> | Move file <source> to file <destination> |
| passwd | Change your password |
| pwd | Show current working directory |
| ps | Show running processes |
| ps -af | Show all running processes. Note: option -af might differ on different Unix OS flavors. |
| rm <filename> | Remove a file |
| rmdir <directory> | Remove a directory |
| set | Show environment settings |
| tar -cf <archivename>.tar directory | Create archive from directory. Example: tar -cf test.tar ./cars/ |
| tar -tf <archivename>.tar | List archive without extracting. |
| tar -xvf <archivename>.tar | Extract tar archive |
| top | Show constantly all running processes |
| vi <filename> | Edit <filename>. Press Esc:wq to save the file and exit the Vi-editor. |
| | |
Find a string in files | find . | xargs grep 'string' -sl
The -s is for summary and won't display warning messages such as grep: ./directory-name: Is a directory.
The -l is for list, so we get just the filename and not all instances of the match displayed in the results. |
