. . "shell" . . . "shell commands" . . . . "Bourne-like" . . . . . . "login shell" . "command line shell" . "Unix Shell" . "command line" . . "Unix shell" . "unix shell" . "shell language" . . "unix command line" . . "command shell" . . . . . "The GNU shell" . . "command shells" . "shells" . . "Unix command line shell" . . . "POSIX Shell" . . . . . . "black screen terminals" . "Unix shell#Bourne shell" . "Unix shell interpreter" . . "shell scripts" . . "Unix shell#Configuration files" . . . "sh" . "Bourne" . . . . "Shell" . "Unix shell" . . . . "Unix-like shell" . "UNIX shell" . "exotic shell" .