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Guacamole tips

Gemy George Kaithakottil edited this page Apr 28, 2026 · 2 revisions

Steps to copy command/text to the Guacamole virtual machine browser

All system users

For most users, copying commands from GitHub is straightforward. Use the clipboard icon on the right-hand side of a command block, as shown below:

Screenshot 2026-04-20 at 10 31 29

After clicking the icon, it will change to indicate the content has been copied:

Screenshot 2026-04-20 at 10 32 00

You can then paste the copied command or text into the terminal by right-clicking inside the Guacamole session.

For example, try the command below:

cd /home/train/Pre_meet && ll

⚠️ Note for Windows users:

Copying multi-line commands from GitHub may introduce extra blank lines in Guacamole, which breaks commands using \ line continuation.
Please use the single-line commands provided under "Windows users" sections.


Mac users:

From Host : First copy the command/text, Cmd + C

Guacamole : Open Clipboard, Ctrl + Shift + Cmd (you should see the copied content in the Clipboard. If not, please copy again)

Guacamole : Close Clipboard, Ctrl + Shift + Cmd

Guacamole : Right-click to paste the command/text


Windows users:

From Host : First copy the command/text, Ctrl + C

Guacamole : Open Clipboard, Ctrl + Shift + Alt (you should see the copied content in the Clipboard. If not, please paste what you have copied inside the Clipboard area, Ctrl + V and copy again Ctrl + C from the Clipboard what you have just pasted)

Guacamole : Close Clipboard, Ctrl + Shift + Alt

Guacamole : Right-click to paste the command/text


Ubuntu users:

From Host : First copy the command/text, Ctrl + C

Guacamole : Open Clipboard, Ctrl + Shift + Alt (you should see the copied content in the Clipboard. If not, please paste what you have copied inside the Clipboard area, Ctrl + V and copy again Ctrl + C from the Clipboard what you have just pasted)

Guacamole : Close Clipboard, Ctrl + Shift + Alt

Guacamole : Right-click OR Ctrl + Shift + V to paste the command/text


Steps to copy command/text within the Guacamole virtual machine browser

Mac/Windows/Ubuntu users:

Guacamole : Drag across the command/text (it is now copied to the Clipboard)

Guacamole : Right-click to paste the command/text


How to clear the Guacamole Browser Cache

If you encounter issues pasting commands into the Guacamole terminal, clearing the site-specific browser cache often resolves the problem. Follow these steps to clear the data for the Guacamole URL without affecting your other browser tabs.

Step-by-Step Instructions

1. Open Site Settings

Click the tune/options icon located immediately to the left of the URL in your browser address bar.

Options icon

Refer to the red box in the image below for the exact location:

Address bar highlighting site settings

2. Access Site Data

From the dropdown menu, select Cookies and site data.

Cookies and site data menu option

3. Manage On-Device Data

Click on Manage on-device site data.

Manage on-device site data option

4. Delete Stored Data

Click the trash bin icon next to the site entries. If multiple entries exist for the domain, delete all of them.

Deleting site data entries

⚠️ Final Step

After completing these steps, close the current browser tab. Open a new tab and navigate back to your Guacamole instance. Clipboard functionality should now be restored.

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