Exit script called from within a menu without exiting the menu

I have written this menu that calls forth several scripts. One of this script is

dbus-monitor --system

so it displays live traffic over dbus.

but when I want to exit this I normally do Ctrl+C, but that also exits my menu and I would like to just return to my menu.

is there a code that I can put after the dbus-moniter, when an exit is detected it starts my menu again?
my menu is just another .sh script

or ….

—————- clarify —————

i am not that advanced "yet" 😉 in scripting. this is the menu where i call my dbus script

select opt in "dbus Live Traffic" "option 2" "Main menu" "Quit"
    do
        case $opt in
            "dbus Live Traffic")
                curl -s -u lalala:hihihi ftp://ftp.somewhere.com/folder/dbuslivetraffic.sh | bash ;;   
            "option 2")
                do_something ;;   
            "Main menu")
                main_menu;;
            "Quit")
                quit_menu;;
        esac
        if [[ $opt != "Main menu" ]] || [[ $opt != "Quit" ]] ;
        then
            main_menu
        fi
    done

and this is the content of my dbuslivetraffic.sh

dbus-monitor --system

for now just this single line, but maybe in the near future more code will be added to this script.

i don't really understand where i need to put the TRAP function like suggested by @RoVo

Best Answer

You can run the command in a subshell and trap on SIGINT running kill 0 to kill the process group of the subshell only.

select opt in a b; do
    case $REPLY in
      1)
        (
          trap "kill -SIGINT 0" SIGINT
          sleep 10
        )
        ;;
      2)
        sleep 10
        ;;
    esac
done

Selecting (1) will let you use Ctrl+c without killing the menu.
Selecting (2) and pressing Ctrl+c will kill the menu, too.

Reminder:

While with this solution the nautilus-actions will not be used in order to add the new context menu actions, it has to be installed for Nautilus to even have the actions feature at all, and for the actions to appear in the context menu.

The idea is to have a ready-made but incomplete action file that is to be edited and saved under a new name for each new context menu action. This generic file can in turn be accessed each time with a launcher file (as if it were an app) or from the context menu itself (with another specific action file previously created).

Create the folder ~/.local/share/file-manager/actions.

To create the ready-made action file, do:

gedit ~/.local/share/file-manager/actions/new-action.desktop

With these lines:

[Desktop Entry]

Type=Action
ToolbarLabel=<name-of-action>
Name=<name-of-action>
Profiles=profile-zero;

#TargetContext=false
#keep the above commented if you WANT the action to appear when you select files of the type specified by the line MymeTypes; un-comment it if you DO NOT WANT your new action to appear when you select the specified files

#TargetLocation=true
#keep the above commented if you DO NOT WANT the action to appear when right clicking an empty area; remove the comment when you WANT that.

[X-Action-Profile profile-zero]
Folders=*;
Exec=
Name=Default profile
MymeTypes=
#the above line specifies the types of files for which your new action appears when you select them (remove the line 'TargetContext=false' to achieve that)

#DO NOT SAVE directly after editing!

#USE "SAVE AS" TO SAVE YOUR NEW ACTION FILE!

And save it.

That can be accessed directly of course, but it's nicer to have an easier way to open the ready-made file. This could be done through a launcher file:

gedit ~/.local/share/applications/Nautilus_action.desktop

With this content:

[Desktop Entry]
Type=Application
Name=New Nautilus action
Icon=nautilus
Categories=System;Settings;
Exec=sh -c 'gedit ~/.local/share/file-manager/actions/new-action.desktop'

Making it executable:

chmod +x ~/.local/share/applications/Nautilus_action.desktop

After that it can be started from a menu or app launcher:

The above is meant to open the generic ~/.local/share/file-manager/actions/new-action.desktop, edit, and save it with a different name.

How to do it:

Run the launcher "New Nautilus action"
When the generic file is open in gedit, edit these lines that will define your new Nautilus menu action (that is: the menu name, the action-file name, and the command to execute):

ToolbarLabel=

Name=

Exec=

TargetContext=false

The above should be commented (have # before it) if you want the menu action to appear when you select files (of the types specified by the line MymeTypes; see below on the ! option). If you do not want it to appear on selection (a rare case when you want an action only to appear on empty area inside folders), remove the comment (#).

TargetLocation=true

Considering the above line, if you do not want your new menu action to appear when you right-click an empty area, add # before it; remove the comment if you need the action to appear when you click an empty area inside folders.
Add to the following line the mime-types of files for which your new action appears when you select them (remove/comment the line 'TargetContext=false' to achieve that):

MymeTypes=;

Add the mime types like: inode/directory for folders, audio/* for audio, etc to specify for which selection you want the action to appear; to exclude a certain mime type use ! before it. (For example: if you use an action to convert audio to mp3 you would want it to appear for all audio excepting mp3 files; in this case it should be MymeTypes=!audio/mp3;audio/*.) Look in a file's properties (Basic/Type) in Nautilus to see its mime type.

DO NOT SAVE THE FILE directly or your new action will overwrite the generic action file!
Use 'Save as' to save the file with a DIFFERENT NAME.

Byobu configuration menu escape / exit always closes the tab

Add the following lines to the ~/.byobu/keybindings.tmux file:

unbind-key -n F1
unbind-key -n F9
bind-key F1 new-window -n config byobu-config
bind-key F9 new-window -n config byobu-config

This removes a -k argument of the new-window command which kills the existing window and replaces it. I don't know if this issue affects other operating systems; I suspect this is a macOS X issue.

Best Answer

Related Solutions

Nautilus – Add Context Menu Action Without Nautilus-Actions

Reminder:

And save it.

How to do it:

Byobu configuration menu escape / exit always closes the tab

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