Linux Basics - Episode 3: File Permissions (chmod, chown, sudo)
Episode 3 of the Linux Basics tutorial series. Learn how file permissions work in Linux — who can read, write, and execute your files.\n\nCommands covered:\n• whoami / id — who you are\n• ls l — reading the permissions string\n• chmod (symbolic + numeric) — changing permissions\n• chown — changing file ownership\n• sudo — running commands as root\n• Permission denied errors explained\n\nPermissions numeric shorthand:\nr = 4 w = 2 x = 1\n644 = rw-r--r- (owner r+w, everyone else r)\n755 = rwxr-xr-x (owner full, everyone else r+x)\n\n📺 Series playlist: • Linux Tutorials \n\n#Linux #LinuxBasics #LinuxTutorial #Permissions #chmod #chown #sudo #CommandLine