Programming and posix - April 2002

April 3, 2002
Solution Symposium
Page 11
hp e3000
programming
and posix
vi editor
• the only bytestream file editor supplied by CSY
• hated by many, but standard on all Unixes
• command mode vs. data entry mode
• starts in command mode
• almost every character is a command
• some commands toggle to data entry mode
• ESC terminates data entry mode