Command Vocabulary Sheet - Green-Biome-Institute/AWS GitHub Wiki

Go back to tutorial overview

Commands covered in this tutorial:

• whoami : Output the user currently logged into and executing commands at the command line window
• date : Output the current date and time
• cal : Output a calendar view with the current day highlighted on it
• echo [words] : Print [words] onto the screen
• man [commands] : Read the manual for [command]
• pwd : Print your current working directory
• ls : List the contents of your current working directory
• cd [directory] : Change directory into [directory]
• cat [file] : Read [file] onto the screen
• touch [filename] : Create a new file with the name [filename]
• mkdir [dir-name] : Make a directory named [dir-name]
• rmdir [dir-name] : Remove a directory named [dir-name]
• rm [file] : Remove [file]
• mv [file] [destination] : Move [file] to [destination]
• cp [file1] [new-filename] : Make a copy of [file1] with the new name [filename]
• nano [file] : Enter the nano editor and edit [file]
• vim [file] : Open the vim editor and edit [file]
• exit : Exit the current EC2 instance, nano editor, or terminal session
• sudo [command] : Execute [command] with administrator privileges
• clear : Clear the current text from the CLI window
• lsblk: List block devices on a Linux system
• df -h: Display amount of free space in your system
• top: Real-time view of what softwares your computer system is currently running
• wc: Newline, word, byte counter
• grep: Search for patterns within files or directories
• |: Pipe command allows you to take the output of one command and use it as the input for another
• sed: Search for patterns and replace them with something else
• apt : Download software packages.
• wget: Download files from web servers
• curl: Download files from web servers
• tar: Compress/uncompress files with the .tar or .tar.gz file extension
• head : read out the first lines of a file
• tail : read out the last lines of a file
• gunzip: Compress/uncompress files with the .gz file extension
• unzip: Compress/uncompress files with the .zip file extension
• env : show all the environment variables in the current CLI session
• ssh : Secure Shell Protocol, used for logging into and executing commands on a remote computer host.
• scp : Secure Copy Protocol, used for copying files to and from a remote computer host.
• yum [software-name] : Download software package [software-name]
• dpkg [software-name] : Download software package [software-name]
• curl [url-name] : Download the information or package at [url-name]
• pip and conda: Download Python packages
• git clone: Download Github repositories
• *: wildcard operator allows you to include all the files and directories in your current working directory or all files that end with [txt]* or begin with [text]*
• >: Redirection operator that directs the output of a command into a new file (or overwrites the existing one)
• >>: Redirection operator that is the same as >, except if a file already exists, it appends the output of the command to the left of it to the end of the file on the right of it

Go back to tutorial overview