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How can I create a message box from the command line, either GUI message boxes or message boxes shown inside the terminal?

It would also be interesting to be able to get a simple input back from the user, for example, an input given with radio buttons (yes/no, OK, etc).

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4 Answers 4

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For a standard "box around a message", use boxes:

echo 'This is a test' | boxes

boxes will look like this (First one. Second one is a custom like cowsay):

Screenshot of an asterix box and an ASCII-art dog holding a sign of text


If you mean an alert box, use notify-send:

notify-send 'title' 'message'

notify-send looks like this:

Pop-up message reading "Hello Ashframe..."


You also can use zenity for a popup window:

zenity --error --text="An error occurred\!" --title="Warning\!"

Zenity is more graphical and has more options, like having the window appear as a question, using:

zenity --question --text="Do you wish to continue/?"

or even progress bars, using:

find /usr | zenity --progress --pulsate --auto-close --auto-kill --text="Working..."

zenity looks like this:

error, question, info, and warning dialog boxes with buttons


Or use dialog, for a command-line only message box:

dialog --checklist "Choose OS:" 15 40 5 \
1 Linux off \
2 Solaris on \
3 'HP UX' off \
4 AIX off

dialog looks like this:

dialog TUI with 4 options


Another option is whiptail:

whiptail --title "Example Dialog" --msgbox "This is an example of a message box. You must hit OK to continue." 8 78

whiptail looks like this:

whiptail pop-up box with two text buttons


And if you are truly crazy, use toilet:

toilet -F border -F gay "CRAZY"

toilet looks like this:

colorful text box reading "CRAZY"

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58

xmessage

This is the granddaddy of GUI alerts:

xmessage -center "Hello, World!"

Pure retro goodness.

I also bet that it should be widely available on X11 systems.

SO thread: How to show a GUI message box from a bash script in linux? | Stack Overflow

Tested in Ubuntu 18.04.

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    xmessage is even installed on Ubuntu Server by default. So I can use ssh -Y <host> to log into the machine while forwarding x connections and then run some-command; xmessage "some-command is done" to pop up a notification on my desktop when the long running command is finished. May 3, 2019 at 20:30
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    Cool command. To auto-clear the message after a few seconds: xmessage -timeout 10 "Goodbye in 10s!".
    – AlainD
    Sep 11, 2019 at 15:49
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    TINY on a 4k monitor. Feb 20, 2020 at 21:15
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    This will do wonders for my long-running rsync commands over ssh. Nov 19, 2020 at 20:10
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    Xmessage is a very underestimated little program. You can also use buttons that return different exit status. E.g.: xmessage -button OK:0,Cancel:101 Hello; echo $? returns 0 (success) if user presses OK and 101 if he presses cancel.
    – Quasímodo
    Nov 11, 2021 at 18:45
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And then just because @polym's completely over the top answer missed the classic messaging:

write <username> [<terminal>] - send a message to another user. Either interactively or as part of a pipe with echo "message" | write username

write


And the complement to write, wall to send a message to all users

wall

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If you are willing to pipe the text to a Python wrapper, you can use terminaltables:

pip3 install colorclass
pip3 install terminaltables

Then in the GitHub Repo, you can use one of the examples to write a python wrapper.

enter image description here

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  • -1 for requiring something as heavy as python, pip and then some packages.
    – einpoklum
    Jan 23 at 16:54
  • @einpoklum That's a poor argument, especially since most examples above require the installation of entire new packages and tools, while nearly all people already have python installed.
    – not2qubit
    Jan 24 at 12:54

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