Unix-like OS Commands.md

Unix-like OS Commands

Representation of Paths

PATH	COMMAND	EXAMPLE
Root Directory	/	cd /
Home Directory	~	~/.rcinfo
Directory Separator	/
Current Directory	.	./inthisdir
Parent Directory	..	../../greatgrandparent

Basic Shell Commands

• pwd: Show the current full path.
• ls: List files in the current direction.
• ls -a: Show all files, including hiding files which name start as a .dot.
• cd {dir_name}: Change directory to the target whose name is "dir_name".
• mkdir {dir_name}: Make a new directory under current path called "dir_name".
• rm {file_name}: Remove or delete the single file called "file_name".
• rm -r {dir_name}: Remove the directory and all including files called "dir_name" recursively.
• mv {old_path} {new_path}: Move a file from "old_path" to "new_path", or rename it. Actually, they are same.
• cp {source_file} {target_folder}: Copy files or directories (use "-R" Parameter to indicate recursively copying) to target path.

Examples

Remove Specific Files Recursively

find . -name "{file_name}" -exec rm -rf {} \;

Connect to a Remote Server

ssh {remote_server}

Transfer Files between Server and Local PC

scp {source_file} {target_folder}

Local PATH: /Folder(s)/file Remote Path: USER@domain:~/Folder/file