This Is Your Brain On Informatics: Linux
| Command Name | Command Description | cat [filename] | Display file’s contents to the standard output device (usually your monitor). |
|---|---|---|---|
| cd /directorypath | Change to directory. | ||
| chmod [options] mode filename | Change a file’s permissions. | ||
| chown [options] filename | Change who owns a file. | ||
| clear | Clear a command line screen/window for a fresh start. | ||
| cp [options] source destination | Copy files and directories. | ||
| date [options] | Display or set the system date and time. | ||
| df [options] | Display used and available disk space. | ||
| du [options] | Show how much space each file takes up. | ||
| file [options] filename | Determine what type of data is within a file. | ||
| find [pathname] [expression] | Search for files matching a provided pattern. | ||
| grep [options] pattern [filesname] | Search files or output for a particular pattern. | ||
| kill [options] pid | Stop a process. If the process refuses to stop, use kill -9 pid. | ||
| less [options] [filename] | View the contents of a file one page at a time. | ||
| ln [options] source [destination] | Create a shortcut. | ||
| locate filename | Search a copy of your filesystem for the specified filename. | ||
| lpr [options] | Send a print job. | ||
| ls [options] | List directory contents. | ||
| /man [command] | Display the help information for the specified command. | ||
| mkdir [options] directory | Create a new directory. | ||
| mv [options] source destination | Rename or move file(s) or directories. | ||
| passwd [name [password]] | Change the password or allow (for the system administrator) to
change any password. | ||
| ps [options] | Display a snapshot of the currently running processes. | ||
| pwd | Display the pathname for the current directory. | ||
| rm [options] directory | Remove (delete) file(s) and/or directories. | ||
| rmdir [options] directory | Delete empty directories. | ||
| ssh [options] user@machine | Remotely log in to another Linux machine, over the network. | ||
| Exit | Leave an ssh session by typing | ||
| su [options] [user [arguments]] | Switch to another user account. | ||
| tail [options] [filename] | Display the last n lines of a file (the default is 10). | ||
| tar [options] filename | Store and extract files from a tarfile (.tar) or tarball
(.tar.gz or .tgz). | ||
| top | Displays the resources being used on your system. Press q to exit. | ||
| touch filename | Create an empty file with the specified name. | ||
| who [options] | Display who is logged on. |
