**WAITS** was the timesharing operating system in use at the Stanford AI Laboratory from 1966 to 1991. **Files and directories** Like [[TOPS-10]], files have a six-character name and a three-character extension. The file system is divided into directories named by project and programmer, three characters each. The default project is "1", so the home directory for user "USR" would be [1,USR]. A fully specified path has the directory after the file name, e.g. FOOBAR.TXT[1,USR]. **Survival Guide** Here a summary of useful commands for WAITS in comparison common UNIX commands. Everywhere $ is written, it means typing Escape. ^UNIX ^WAITS^ | login: user | LOGIN 1,USR | | logout | KJOB | | ls | DIR | | ls foo/bar | DIR [BAR,FOO] | | ls / | DIR [1,1] | | ls *.foo | DIR *.FOO | | more file | TYPE FILE | | cd foo/bar | ALIAS BAR,FOO | | CTRL-C | CTRL-C |