How clear gdb command screen?

Asked 17/10, 2012 at 15:41 Answered 10/6 at 6:7

Is it possible to clear the command window of gdb? I mean, is there a command in gdb that do the same (for the command windows) as the clear command in a bash terminal?

Huron answered 17/10, 2012 at 15:41 Comment(0)

Hit Control + L. Works for me in Linux and Mac OS X as well with recent versions of GDB.

Scevor answered 17/10, 2012 at 15:42 Comment(6)

Actually, this works in a terminal as well. Moreover, it works in a Cygwin terminal, which doesn't have a clear command. Hence, a good habit to get into. ;-) – Margarettmargaretta 17/10, 2012 at 15:43

@Huron you must be using some insane environment. – Scevor 17/10, 2012 at 15:46

@H2CO3 also doesn't work under OSX/xterm, fairly vanilla setup – Firstling 17/10, 2012 at 15:46

@H2CO3: I assumed you know that. I just thought I'd mention this for other readers. – Margarettmargaretta 18/10, 2012 at 8:9

@JohnTortugo: Using Ctrl-L to clear the screen is a feature of the shell, not of the terminal emulator. (The shell has to know what control sequence to use; that's what terminfo is for.) – Marginal 9/6, 2015 at 0:40

Control L doesn't clear the screen. It shifts the screen up so that the last line is at the top. The answer from pd2q that has "shell clear" actually clears the screen. – Lota 21/5, 2021 at 8:22

Depending on the environment you can try this key combination: Ctrl+L. That is: hold down the Control key, and type the L key.

But this may not work in all environments. You can also try the following: in gdb you can execute shell commands using shell: use this to call out to the shell to clear the terminal:

shell clear

Firstling answered 17/10, 2012 at 15:43 Comment(10)

this returns 'XTERM': unknown terminal type. – Huron 17/10, 2012 at 15:45

@Huron are you running gdb in an xterm or e.g. through ssh? – Firstling 17/10, 2012 at 15:46

@Huron I can't test that, but it sounds like you need to tweak your TERM setting – Firstling 17/10, 2012 at 15:48

@Huron play around w/ TERM settings under gnome-term and you should be able to use it there as well. – Firstling 17/10, 2012 at 15:49

I'm using debian squeeze.Gdb 7.01 – Huron 17/10, 2012 at 15:51

shell reset if your terminal is really hosed. – Solanaceous 30/6, 2016 at 20:16

You are right this one always works for me. Ctrl + L may fail some times. e.g. clearing TUI outputs. – Perfume 23/10, 2016 at 2:49

@Firstling I'm using gbd in Windows 7 cmd (via MinGW). ctrl+ L is not clearing the screen. Any idea how I should to it on windows ? – Barbur 24/12, 2016 at 12:5

@JasonKrs, shell cls will do the job. On MinGW gdb seems to have cmd.exe as shell. – Norrie 24/3, 2017 at 14:20

Can I do it in such a way that my registers and assembly TUI layouts are still visible? I only need to clear the cmd part of gdb. Ah, found it, leaving this comment here as the question might assume my use case as well (when looking at the title). #42283455 – Anticlockwise 29/2, 2020 at 17:40

If you downloaded gdb from MingW your cmd.exe seems to be known as shell, therefore to clear the command screen you need to use this command instead

shell cls

Paraguay answered 1/4, 2023 at 1:53 Comment(0)

Worked for me, I am using Ubuntu linux

shell clear

Steel answered 10/6 at 6:7 Comment(0)

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