Clear the screen in Gremlin Console?

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Jon Schoenfield

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Jun 12, 2019, 4:43:39 PM6/12/19
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I'm running Gremlin Console (on a laptop running Windows 10).  If I want to clear the screen (similar to what the "cls" command normally does in a Command Prompt window), is there an easy way to do that?

If not ... is there a not-so-easy way that probably wouldn't be difficult for someone like me (just getting started with Gremlin)?

Thanks!

Stephen Mallette

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Jun 12, 2019, 5:38:57 PM6/12/19
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i don't know of a way to do that. the gremlin console is built on groovysh which in turn uses jline2 for io stuff, so we are a bit dependent on them for that kind of functionality (perhaps there is a way and i'm just not aware). not sure if there is a OS specific way to do it (cls wouldn't work i guess) but, as an example, I learned the ctrl+u on linux is good to delete all contents of a line in the Gremlin Console - never realized that worked there before the same way it works from the regular command line.

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Daniel Kuppitz

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Jun 12, 2019, 5:49:13 PM6/12/19
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CTRL+L in Linux and, according to https://www.davidtan.org/how-to-clear-screen-in-groovy-console/, CTRL+W in Windows.

Cheers,
Daniel


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Jon Schoenfield

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Jun 12, 2019, 6:38:24 PM6/12/19
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Okay, thanks.  So far, the best I've been able to come up with is

     Alt+Spacebar E L PageDown Enter

... which seems like a lot to do just to clear the screen.  :-(


On Wednesday, June 12, 2019 at 4:38:57 PM UTC-5, Stephen Mallette wrote:
i don't know of a way to do that. the gremlin console is built on groovysh which in turn uses jline2 for io stuff, so we are a bit dependent on them for that kind of functionality (perhaps there is a way and i'm just not aware). not sure if there is a OS specific way to do it (cls wouldn't work i guess) but, as an example, I learned the ctrl+u on linux is good to delete all contents of a line in the Gremlin Console - never realized that worked there before the same way it works from the regular command line.

On Wed, Jun 12, 2019 at 4:43 PM 'Jon Schoenfield' via Gremlin-users <gremli...@googlegroups.com> wrote:
I'm running Gremlin Console (on a laptop running Windows 10).  If I want to clear the screen (similar to what the "cls" command normally does in a Command Prompt window), is there an easy way to do that?

If not ... is there a not-so-easy way that probably wouldn't be difficult for someone like me (just getting started with Gremlin)?

Thanks!

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Jon Schoenfield

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Jun 12, 2019, 6:47:05 PM6/12/19
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Thanks!  I didn't even know there was a "Groovy Console" ....

Unfortunately, when I tried Ctrl+W at the "gremlin>" prompt (in the Command Prompt window in which I had started an instance of Gremlin Console), it just showed

     gremlin> ^W
     gremlin>


On Wednesday, June 12, 2019 at 4:49:13 PM UTC-5, Daniel Kuppitz wrote:
CTRL+L in Linux and, according to https://www.davidtan.org/how-to-clear-screen-in-groovy-console/, CTRL+W in Windows.

Cheers,
Daniel


On Wed, Jun 12, 2019 at 2:38 PM Stephen Mallette <spmal...@gmail.com> wrote:
i don't know of a way to do that. the gremlin console is built on groovysh which in turn uses jline2 for io stuff, so we are a bit dependent on them for that kind of functionality (perhaps there is a way and i'm just not aware). not sure if there is a OS specific way to do it (cls wouldn't work i guess) but, as an example, I learned the ctrl+u on linux is good to delete all contents of a line in the Gremlin Console - never realized that worked there before the same way it works from the regular command line.

On Wed, Jun 12, 2019 at 4:43 PM 'Jon Schoenfield' via Gremlin-users <gremli...@googlegroups.com> wrote:
I'm running Gremlin Console (on a laptop running Windows 10).  If I want to clear the screen (similar to what the "cls" command normally does in a Command Prompt window), is there an easy way to do that?

If not ... is there a not-so-easy way that probably wouldn't be difficult for someone like me (just getting started with Gremlin)?

Thanks!

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Fabio Lorenzi

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Jun 13, 2019, 4:49:56 AM6/13/19
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You might want to try the same combinations with the WindowsKey+L or WindowsKey+W (much like the cmd in MacOs).
I'm just dropping ideas, I have no means to try it out but it is worth a shot

Jon Schoenfield

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Jun 13, 2019, 12:06:31 PM6/13/19
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I hadn't thought of that....
I tried WindowsKey+L, and it locked the screen (so I entered my password to unlock it) ...
I tried WindowsKey+W, and it brought up Windows Ink Workspace (which I may want to look into at some point) ...
I also tried WindowsKey+[letter] for each of the other letters on the keyboard, and none of them cleared the screen in the Gremlin Console instance ...
... but I did learn some shortcut key combinations that I found useful!  :-)
Thanks!

Kelvin Lawrence

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Jun 25, 2019, 2:46:15 PM6/25/19
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Ctrl-W generates the same escape sequence that 

gremlin>"cmd /c cls".execute.text

generates I think but neither ever seem to work for me. Your menu shortcut key sequence beats anything I have found on Windows. I mostly use Mac and Linux where CTRL-L works fine as others have noted. If you can live with a cleared screen with the prompt still at the bottom this hack works:

gremlin> def cls() {for (i in 1..100){println(" ")};[]}
gremlin cls()

Jon Schoenfield

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Jun 28, 2019, 11:26:25 AM6/28/19
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Thanks!  Just to see what would happen, I tried

gremlin> "cmd /c cls".execute.text

and it responded with

No such property: execute for class: java.lang.String
Type ':help' or ':h' for help.
Display stack trace? [yN]

... Is that the result I should expect?

I then tried

gremlin> def cls() {for (i in 1..100){println(" ")};[]}
gremlin cls()

and that worked fine -- except that, as you said, the prompt is still at the bottom of the screen.  But I can get used to that.  :-)

Thanks again!

Kelvin Lawrence

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Jun 28, 2019, 10:08:01 PM6/28/19
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Sorry that was a typo on my part - it should be execute()

Kelvin

Kelvin Lawrence

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Apr 1, 2020, 4:31:15 PM4/1/20
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This came up again on SO [1] so I did some more experimenting. With the Console in local mode, on recent Windows 10 versions, this will clear the screen.

Stephen Mallette

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Apr 2, 2020, 9:06:20 AM4/2/20
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thanks Kelvin - as a result of what you wrote I created:


It works nicely on ubuntu in bash. Would you mind building this branch:


and testing it out? Perhaps, there is a windows user out there who might be able to test as well to confirm it works?



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Kelvin Lawrence

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Apr 2, 2020, 10:41:55 AM4/2/20
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Hi Stephen , tried building the gremlin-console project on that branch but the file ResetCommand.groovy does not seem to be in the repo n that branch 

Cheers
Kelvin

Stephen Mallette

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Apr 2, 2020, 1:07:41 PM4/2/20
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sorry - i messed up the commit. it should be fixed now.

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Kelvin Lawrence

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Apr 2, 2020, 1:19:56 PM4/2/20
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Built and tested on Linux (Red Hat)

I can try Mac and Windows later

Minor comment the long name :reset may imply it does more then clear the screen. How about something like :clscreen

Kelvin


On Thursday, April 2, 2020 at 12:07:41 PM UTC-5, Stephen Mallette wrote:
sorry - i messed up the commit. it should be fixed now.

Stephen Mallette

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Apr 2, 2020, 1:25:15 PM4/2/20
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how about :cls and shorthand as :C ?

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Kelvin Lawrence

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Apr 2, 2020, 1:30:29 PM4/2/20
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Works for me :-)

Kelvin


On Thursday, April 2, 2020 at 12:25:15 PM UTC-5, Stephen Mallette wrote:
how about :cls and shorthand as :C ?

Kelvin Lawrence

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Apr 2, 2020, 7:33:17 PM4/2/20
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Tested fine on Mac. Will get to Windows ASAP unless anyone beats me to it.

Kelvin

Yeikel

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Apr 2, 2020, 7:51:42 PM4/2/20
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I can confirm that it works fine on Windows (Windows 10)

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