the display command

• To have a variable displayed every time you get the gdb prompt, 'display <variable>
• This will stop working as soon as the variable moves out of scope.
• Use 'display' to get a list of auto-displayed variables.
• Use 'undisplay <number>' to stop the given auto-display.
• Use 'undisplay' to stop all auto-displays.
• Note: you can 'display <expression>', just like with print.

Originally written by guy keren