Unix Cheat Sheet

Directory Operations

Command	Operation
`pwd`	Show current directory
`mdir` directory_name	Make directory
`cd` directory_name	Change directory
`cd..`	Go up a directory
`cd /`	Move to root directory
`mv` directory_name new_directory_name	Renames the file to a new filename
`rm -r` directory_name	Deletes non-empty directory and its content.

Command	Operation
`ls`	Lists all files and directories in the present working directory
`ls -l`	Lists files and directories with detailed information like permissions,size, owner, etc.
`ls -al`	Lists files and directories with detailed information like permissions,size, owner, etc. (Includes hidden files)
`ls -tl`	Sort by last modified
`ls -Sl`	Sort by file size
`ls -Rl`	Lists files in sub-directories as well

Command	Operation
`touch` file_name	Make file
`mv file` new_file_path	Moves the files to the new location
`mv` file_name new_file_name	Renames the file to a new filename
`rm` file_name	Deletes a file

Command	Operation
`r`	Read permission
`w`	Write permission
`x`	Execute permission
`chmod +` permission_type file_name	Add permission
`chmod -` permission_type file_name	Remove permission

Command	Operation
`clear`	Clears the terminal
`history`	Gives a list of all past commands typed in the current terminal session