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Chapter 21. Controlling gdb

You can alter the way gdb interacts with you by using the set command. For commands controlling how gdb displays data, (refer to Section 10.7 Print settings. Other settings are described here.

21.1. Prompt

gdb indicates its readiness to read a command by printing a string called the prompt. This string is normally (gdb). You can change the prompt string with the set prompt command. For instance, when debugging gdb with gdb, it is useful to change the prompt in one of the gdb sessions so that you can always tell which one you are talking to.

Note: set prompt does not add a space for you after the prompt you set. This allows you to set a prompt which ends in a space or a prompt that does not.

set prompt newprompt

Directs gdb to use newprompt as its prompt string henceforth.

show prompt

Prints a line of the form: Gdb's prompt is: your-prompt

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