Input / output redirection ................................................................. 25 Wildcard expansion ......................................................................... 27 Command line processing order ...................................................... 29 4 Files and Directories ............................................................ 31 Background ......................................................................................... 31 File types ......................................................................................... 32 Filename extensions ........................................................................
32 Block devices ....................................................................................... 33 The RAM disk ................................................................................. 33 Disk devices .................................................................................... 34 Hierarchical file systems .................................................................... 35 Directories ....................................................................................... 35 Filenames and pathnames ................................................................ 36 Typical file commands ....................................................................
36 5 Starting Programs ............................................................... 39 Starting a program ............................................................................. 39 Search path ...................................................................................... 39 Types of executable files ................................................................. 40 Executing binary files ...................................................................... 40 Executing shell program files ............................................................ 41 Shell file error trapping and command echoing ..............................
41 Error trapping mode ........................................................................ 41 Echoing mode .................................................................................. 42 Multiple or nested shell programs ................................................... 42 42 Shell file example ............................................................................ 43 6 Edit: The Screen Editor ...................................................... 45 Using an editor ................................................................................... 45 The cursor ........................................................................................
45 Starting the editor ............................................................................ 45 General operation ............................................................................ 46 Entering text .................................................................................... 47 Editor commands ............................................................................... 47 Cursor movement commands .......................................................... 48 Scrolling commands ........................................................................ 49 Text deleting commands .................................................................
49 Undo commands .............................................................................. 49 Block commands ............................................................................. 49 File commands ................................................................................ 50 Miscellaneous commands ............................................................... 51 Editor hints ...................................................................................... 53 Fancy text ........................................................................................ 54 7 Multi Tasking .......................................................................
55 User Tutorial Manual ii