linux-bash-terminal-commands.txt

Linux command							        Description

$ pwd								            Print working directory
$ cd /{destination_folder}				        Change directory
$ cd								            Go to root's directory
$ cd ..							                Go back one directory
$ ls								            List of all folders and files
$ touch foo.txt						            Create a file named foo.txt
$ nano foo.txt							        Edit a file named foo.txt
$ cat foo.txt							        Print a file named foo.txt
$ tac foo.txt							        Print a file named foo.txt in reverse mode
$ {command} --help						        Show help for the typed command
$ cat foo.txt | more					        Print a visible text on video and with pressing 'enter' 
                                                the user can see more text of this file
$ cat -n foo.txt						        Print a file named foo.txt with number lines
$ cat foo.txt > bar.txt					        Print an overwrited file (overwrite the content of the 2nd
                                                file with the content of the 1st file)
$ cat > foobar.txt						        The user can type the content that will be showed into this
                                                file with the command $ cat fileName.txt
$ cat foo.txt >> bar.txt				        Print into bar.txt 2 times the content of foo.txt
$ cat foo.txt | sort > bar.txt			        Print into bar.txt the foo.txt's sorted content
$ mkdir foo-folder						        Make a directory named foo-folder
$ rmdir foo-folder						        Remove an empty directory named foo-folder
$ rmdir -rf foo-folder					        Remove recursively a directory named foo-folder and all files that contains
$ cp foo.txt /destinationFolder			        Copy a file named foo.txt into destinationFolder
$ mv -rf foo.txt bar.txt /destinationFolder		Move in recursively mode foo.txt and bar.txt into a folder
$ cat foo.txt | less						    Print a file with less operator (siimilar to more)
$ touch -c foobar.txt						    Create a file with the operator -c  (no-create)
$ clear							                Clear screen
$ touch {A..Z}{1..100}.txt					    Create txt files named with Alphabetic Order (A to Z)
$ rm * 							                Remove all files and folders
$ sudo su							            Obtain admin rights
$ sudo apt-get install {packageName}			Install a package with admin rights
$ sudo apt-get update && sudo apt-get upgrade	Update and upgrade your system with admin rights
$ sudo apt-get remove {packageName}				Remove a package with admin rights
$ top								            Get a system monitor on terminal
$ kill 							                Kill a process
$ kill -9 {PID}						            Kill a process with this PID
$ killall -9 {PID}						        Kill all processes of PID
$ sudo apt --fix-broken install				    Fixing broken install of a package
$ echo {message}						Print a message
$ echo {message} > foo.txt					Print the message into foo.txt


$ cat /proc/interrupts							Print all interrupts of CPU's operations
$ cat /proc/ioports && cat /proc/dma					Print a sequence of all components that CPU use for data transmission
$ lspci								List of all PCI's devices mounted on this machine
$ lspci -t								List of all PCI's devieces mounted on this machine with tree's view
$ ls -l /dev/sd{a..z}							List of all storage devices mounted on this machine
$ lsmod								List of all devices and drives mounted on this machine
$ lsmod | grep pcs*							Get a filtered list of all devices that named "pcs*"
$ sudo rm mod deviceName						Delete a device and its drivers from this machine
$ sudo dpkg -i {packageName}.deb 					Install deb file