emmahsax

Common File Permissions

Permission Code	Used For...	Example	Owner	Group	Public
755	Executable	bin/bash_script.sh	Read, Write, Execute	Read, Execute	Read, Execute
644	Standard read/write	README.md	Read, Write	Read	Read
600	Private Read-only	~/.ssh/id_ed25519	Read, Write	N/A	N/A

See more at Chmod Calculator.