Linux Command Cheat Sheet

Md Mehedi Hasan · 2025-05-08T10:25:27Z

🔗 Networking Commands Command Description ssh username@ip-address Login into a remote Linux machine using SSH ping hostname or ping ip Analyze network and host connections dir Display files in the current directory of a remote computer cd dirname Change directory to dirname on a remote computer put file Upload file from local to remote computer get file Download file from remote to local computer quit Logout from the remote connection ⚙️ Process Management Commands Command Description bg Send a process to the background fg Bring a stopped process to the foreground top Display details on all active processes ps Show the status of processes running for a user ps PID Display the status of a specific process pidof process Get the Process ID (PID) of a process kill PID Terminate a process nice Start a process with a specified priority renice Change the priority of an already running process df Show free hard disk space free Display available RAM memory ✍️ VI Editing Commands Command Description i Insert at cursor (goes into insert mode) a Write after the cursor (goes into insert mode) A Write at the end of the line (goes into insert mode) ESC Terminate insert mode u Undo the last change U Undo all changes to the entire line o Open a new line (goes into insert mode) dd Delete the current line 3dd Delete 3 lines D Delete contents of the line after the cursor C Delete contents of the line after the cursor and insert new text (end with ESC ) dw Delete a word 4dw Delete 4 words cw Change a word x Delete the character at the cursor r Replace the character R Overwrite characters from the cursor onward s Substitute one character under the cursor and continue to insert S Substitute the entire line and begin inserting at the start of the line ~ Toggle the case of the character at the cursor

🔗 Networking Commands

Command	Description
`ssh username@ip-address`	Login into a remote Linux machine using SSH
`ping hostname` or `ping ip`	Analyze network and host connections
`dir`	Display files in the current directory of a remote computer
`cd dirname`	Change directory to `dirname` on a remote computer
`put file`	Upload `file` from local to remote computer
`get file`	Download `file` from remote to local computer
`quit`	Logout from the remote connection

⚙️ Process Management Commands

Command	Description
`bg`	Send a process to the background
`fg`	Bring a stopped process to the foreground
`top`	Display details on all active processes
`ps`	Show the status of processes running for a user
`ps PID`	Display the status of a specific process
`pidof process`	Get the Process ID (PID) of a process
`kill PID`	Terminate a process
`nice`	Start a process with a specified priority
`renice`	Change the priority of an already running process
`df`	Show free hard disk space
`free`	Display available RAM memory

✍️ VI Editing Commands

Command	Description
`i`	Insert at cursor (goes into insert mode)
`a`	Write after the cursor (goes into insert mode)
`A`	Write at the end of the line (goes into insert mode)
`ESC`	Terminate insert mode
`u`	Undo the last change
`U`	Undo all changes to the entire line
`o`	Open a new line (goes into insert mode)
`dd`	Delete the current line
`3dd`	Delete 3 lines
`D`	Delete contents of the line after the cursor
`C`	Delete contents of the line after the cursor and insert new text (end with `ESC`)
`dw`	Delete a word
`4dw`	Delete 4 words
`cw`	Change a word
`x`	Delete the character at the cursor
`r`	Replace the character
`R`	Overwrite characters from the cursor onward
`s`	Substitute one character under the cursor and continue to insert
`S`	Substitute the entire line and begin inserting at the start of the line
`~`	Toggle the case of the character at the cursor

Top comments (1)

Ben Sinclair • May 8 '25

put, get, and quit aren't standard shell commands.

cd changes directory, but in your current shell, which may or may not be on a remote computer. Same with dir, which is not used much outside legacy FTP sessions; people generally want ls for this.