Though there are so many commands used in Linux but for starting your career and even for professional below commands are most important which you must memorise by heart and mind.
Note: For detailed explanation and usage of each command you can filter from left panel and visit their specific web page.
| Commands | Description |
|---|---|
| pwd | Display current working directory ie. your current location in the Linux operating system. |
| ls | Display files and folders in current folder/directory. |
| mkdir | Create a directory/folder. |
| cat | Display content of file. |
| cd | Change Directory ie. to move from one folder to another folder. |
| rm | Remove ie. delete files or folders from computer. |
| cp | Create a copy of file and folder. |
| mv | Used to move files/folder from one location to other and also can be used to rename them (file/folder). |
| du | Display size of file/folder. |
| df | Display File System details i.e List partitions/mount-points created under Disk. |
| grep | Display filtered line from file. |
| echo | Print output. |
| printf | Print output. |
| head | Display first few lines |
| tail | Display last few lines |
| less | Display content of file. Use up and down arrown to see file contents. Press q to exit from it. |
| more | Display content of file in downward direction. |
| vi | Used for creating and modifying a file. |
| awk | Display filtered enties based on some delimeter. |
| sed | Replace/change entries. Example - < sed 's/amar/akbar/g' > |
| chmod | Change Permission of File / Folder. |
| chown | Change Ownership of File / Folder. |
| init 0 | Shutdown Computer |
| reboot | Reboot/Restart Computer. |
| man | Display manual/help for command. |