Command-Line Basics

Command	Platform	Use
`mkdir`	Windows, Linux, macOS	The shell command `mkdir` is used to make a new directory in the filesystem according to its argument. In simple terms, it creates a new directory. Example: `mkdir new_folder` creates a directory named "new_folder" in the current location.
`cd`	Windows, Linux	Change the current directory. Example: `cd Documents`.
`dir`	Windows	List the contents of a directory.
`ls`	Linux, macOS	List the contents of a directory.
`pwd`	Linux, macOS	Print the current directory path.
`cd ..`	Windows, Linux	Move up one directory level (to the parent directory).
`cd \`	Windows	Move to the root directory.
`cd /`	Linux, macOS	Move to the root directory.
`touch`	Linux, macOS	The shell command `touch` is used to create a new, empty file in the filesystem. Example: `touch example.txt`, creates a file named "example.txt" in the current location if it doesn't already exist. If "example.txt" exists, it updates its timestamp.

Command	Platform	Use
`type`	Windows	Display the contents of a file. Example: `type file.txt`.
`cat`	Linux, macOS	Concatenate and display file contents. Example: `cat file.txt`.
`echo`	Windows, Linux	Output text to the terminal. Example: `echo Hello`.
`ren` or `rename`	Windows	Rename a file or directory. Example: `rename old.txt new.txt`.
`mv`	Linux, macOS	Move or rename a file/directory. Example: `mv old.txt new.txt`.
`copy`	Windows	Copy a file. Example: `copy file.txt backup.txt`.
`cp`	Linux, macOS	Copy a file. Example: `cp file.txt backup.txt`.
`del`	Windows	Delete a file. Example: `del file.txt`.
`rm`	Linux, macOS	Delete a file. Example: `rm file.txt`.
`mkdir`	Windows, Linux	Create a new directory. Example: `mkdir new_folder`.
`rmdir`	Windows, Linux	Remove an empty directory. Example: `rmdir old_folder`.

Command	Platform	Use
`>`	Windows, Linux	Redirect output to a file, overwriting it. Example: `echo Hello > file.txt`.
`>>`	Windows, Linux	Redirect output to a file, appending to it. Example: `echo World >> file.txt`.
`\|` (pipe)	Windows, Linux	Send output of one command as input to another. Example: `dir \| find "file"`.
`tee`	Linux, macOS	Write output to both a file and the terminal. Example: `ls \| tee output.txt`.