.sp 3 .SH Index Index .LP .sp 2 .nf & (asynchronous process) 8 ; (multiple processes) 8 * (pattern match) 5 [ ] (pattern match) 6 ? (pattern match) 6 <> (redirect I/O) 7 >> (file append) 12 backslash (\\) 2 cat (concatenate files) 4 cdb (C debugger) 12 chdir (change directory) 7 chmod (change protection) 7 command arguments 4 command files 8 cp (copy files) 5 cref (cross reference) 11 date 2 db (assembly debugger) 13 delete (DEL) 2 diff (file comparison) 11 directories 7 document formatting 9 ed (editor) 3 editor programming 11 EOT (end of file) 3 eqn (mathematics) 11 erase character (#) 2 file system structure 6 filenames 5 file protection 7 goto 12 grep (pattern matching) 11 if (condition test) 12 index 14 kill a program 8 kill a character (@) 2 lil (high-level assembler) 13 login 1 logout 2 ls (list file names) 4 macro for formatting 10 mail 2 multi-columns printing (pr) 5 mv (move files) 5 nroff 9 on-line manual 3 opr (offline print) 5 pathname 6 pattern match in filenames 5 pipes ( | ) 8 pr (print files) 4 prof (run-time monitor) 13 protection 7 ptx (permuted index) 11 pwd (working directory) 7 quotes 6 ratfor (decent Fortran) 13 readahead 2 reading list 13 redirect I/O (<>) 7 RETURN key 1 rm (remove files) 5 rmdir (remove directory) 7 roff (text formatting) 9 root (of file system) 6 shell (command interpreter) 8 shell arguments ($) 12 shell programming 12 shift (shell arguments) 12 sleep 12 sort 11 spell (find spelling mistakes) stopping a program 2 stty (set terminal options) 2 tabs (set tab stops) 2 terminal types 1 time (time programs) 13 tr (translate characters) 11 troff (typesetting) 9 typo (find spelling mistakes) 11 wc (word count) 11 who (who is looged in) 2 write (to a user) 3 yacc (compiler-compiler) 13