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    shell scripting topic

    Scheduled Pinned Locked Moved Ideas and Development
    shellshell scriptprogramming
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    • mituM
      mitu Global Moderator @lilbud
      last edited by

      @lilbud You can use a wildcard:

      sed -i 's/.*.png/08.png/g' overlay.cfg
      

      Note that this will replace any <filename>.png in the file with 08.png.

      1 Reply Last reply Reply Quote 1
      • cyperghostC
        cyperghost @lilbud
        last edited by

        @lilbud I'm still not sure what your goal is.
        Anwer yourself:

        1. Where is the overlay.cfg located?
        2. In which case do you want to alter overlays?
        3. Is there a "system" in altering names (Maybe $EMU-$ROMNAME-$TAG.png?)

        Imho ... here's is a good script that writes several information in /boot/config.txt and checks existance of data before.

        For graphics menu layout you can use this it uses arrays for graphics menu and here is a Howto for dialog/whiptail usage.

        Here is the RetroPie wiki and how to input paramters into your script.

        lilbudL meleuM 2 Replies Last reply Reply Quote 0
        • lilbudL
          lilbud @cyperghost
          last edited by lilbud

          @cyperghost okay

          • Overlay.cfg located in default directory, /opt/retrofit/configs/all/retroarch/overlay

          • The point of the script is to provide a way a to switch and choose the overlay from the retropie menu in ES.

          • So choosing overlay named, '08.png, will do a few things. It will check for an overlay in use. If one is found, then the cfg file will be modified to show the path of the wanted overlay.png, (/my/awesome/overlay/8.png).

          • Once the overlay is selected, the main retroarch.cfg will be modified with the viewport settings and the overlay.

          Anything else needing further explanation?

          Creator of the Radiocade: https://retropie.org.uk/forum/topic/6077/radiocade

          Backlog: http://backloggery.com/lilbud

          cyperghostC 1 Reply Last reply Reply Quote 0
          • cyperghostC
            cyperghost @lilbud
            last edited by

            @lilbud No I understood.
            All the links I've provided to you will help you to code this.
            Just start over with the selection menu ;)

            lilbudL 1 Reply Last reply Reply Quote 0
            • lilbudL
              lilbud @cyperghost
              last edited by

              @cyperghost If I can find a way to get the script done during class, I'll see if I can work on it.

              I think there is bash on my school computer...

              Creator of the Radiocade: https://retropie.org.uk/forum/topic/6077/radiocade

              Backlog: http://backloggery.com/lilbud

              cyperghostC 1 Reply Last reply Reply Quote 0
              • cyperghostC
                cyperghost @lilbud
                last edited by

                @lilbud
                Bash? School computer?

                Code on your Pie!
                All you need is a SSH terminal and nanoas editor

                So you I would do the following.

                1. You write a selection menu that provides a layout for selected system and save it to config
                2. You write an "enabler" that sets overlay according to choosen system

                ;)

                lilbudL 1 Reply Last reply Reply Quote 0
                • lilbudL
                  lilbud @cyperghost
                  last edited by

                  @cyperghost I don't have access to my pi in school, besides, the schools network is locked to any device that isn't a school issued computer.

                  Creator of the Radiocade: https://retropie.org.uk/forum/topic/6077/radiocade

                  Backlog: http://backloggery.com/lilbud

                  1 Reply Last reply Reply Quote 0
                  • meleuM
                    meleu @cyperghost
                    last edited by

                    @cyperghost said in shell scripting topic:

                    For graphics menu layout you can use this

                    I'm afraid that a scriptmodule isn't a good example for starters ;-)

                    @lilbud said in shell scripting topic:

                    Anything else needing further explanation?

                    Yes, post your code in ghostbin or something so we can give more effective guidance.

                    • Useful topics
                    • joystick-selection tool
                    • rpie-art tool
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                    lilbudL cyperghostC 2 Replies Last reply Reply Quote 0
                    • lilbudL
                      lilbud @meleu
                      last edited by

                      @meleu I'll have to redo it today, I'll post a link later.

                      Creator of the Radiocade: https://retropie.org.uk/forum/topic/6077/radiocade

                      Backlog: http://backloggery.com/lilbud

                      1 Reply Last reply Reply Quote 0
                      • cyperghostC
                        cyperghost @meleu
                        last edited by cyperghost

                        @meleu Yes but for the sake of coding style

                        choice=$(dialog --command1 --command2 --menulist \
                                1 Option 1 \
                                2 Option 2 \
                                redirection to ....)
                        

                        is better coded in this script menu example ;)

                        dialogcmd=(dialog --command1 --command2 --menu)
                        dialogoptions=("1" "Option 1" "2" "Option 2")
                        choice=$("${dialogcmd[@]}" "${dialogoptions[@]}" redirection to)
                        

                        And it will be much easier for bug hunting. Because structur here is clear. And this was my intention to bring this script module into game.
                        dialogcmd sets the structure of how the menu will looks like as array
                        dialogoptions is the data array for selection
                        and now with choice you put cmd and options together.

                        And I think this is a good example of clean coding ;)
                        Of course @lilbud will choose his own flavour later

                        1 Reply Last reply Reply Quote 1
                        • lilbudL
                          lilbud
                          last edited by

                          @meleu @cyperghost Here is my plan for the script: https://ghostbin.com/paste/6bbsa

                          not much in the way of code since I don't have a way to write/test it on my school computer.

                          Creator of the Radiocade: https://retropie.org.uk/forum/topic/6077/radiocade

                          Backlog: http://backloggery.com/lilbud

                          1 Reply Last reply Reply Quote 0
                          • hiulitH
                            hiulit
                            last edited by

                            Hi there!

                            I've created my first shell script and I'd like your opinion, codewise.
                            It's a script to install some extras for RetroPie themes (icons, splashscreens and launching images).

                            The code is here: https://github.com/hiulit/es-theme-extras/blob/master/es-theme-extras.sh

                            I've created a post on this forum https://retropie.org.uk/forum/topic/13344/extras-for-retropie-themes-icons-splashscreens-and-launching-images-es_theme_extras-shell-script You can check it out to see more details.

                            Thanks! :)

                            My little contributions to the RetroPie project:

                            • Shell-Script-Boilerplate
                            • Fun-Facts-Splashscreens
                            • Limit-Last-Played-Games
                            meleuM 1 Reply Last reply Reply Quote 1
                            • meleuM
                              meleu @hiulit
                              last edited by

                              @hiulit I saw that post. That's a pretty cool idea. I'm just a little busy with RL stuff, but I'll take a look at that soon. ;-)

                              • Useful topics
                              • joystick-selection tool
                              • rpie-art tool
                              • achievements I made
                              hiulitH 1 Reply Last reply Reply Quote 1
                              • hiulitH
                                hiulit @meleu
                                last edited by

                                @meleu I'm glad you think it's a good idea! :D I think so too, but it would need every theme creator to get involved. We'll see if more people find it useful.

                                My little contributions to the RetroPie project:

                                • Shell-Script-Boilerplate
                                • Fun-Facts-Splashscreens
                                • Limit-Last-Played-Games
                                cyperghostC 1 Reply Last reply Reply Quote 0
                                • cyperghostC
                                  cyperghost @hiulit
                                  last edited by

                                  @hiulit Welcome on board ;)

                                  hiulitH 1 Reply Last reply Reply Quote 1
                                  • hiulitH
                                    hiulit @cyperghost
                                    last edited by

                                    @cyperghost Thanks! :)

                                    My little contributions to the RetroPie project:

                                    • Shell-Script-Boilerplate
                                    • Fun-Facts-Splashscreens
                                    • Limit-Last-Played-Games
                                    1 Reply Last reply Reply Quote 1
                                    • lostlessL
                                      lostless
                                      last edited by lostless

                                      Just to continue this discussion. The kill run command program portion of shutdown script no longer works with retroarch in the most latest update from yesterday. Raspian files updated as well. It works with kodi. I have no other apps other than retroarch or kodi to test on. But this happened on 2 pi’s of mine so it last not a config i messes up.

                                      So in essence. If in ES, shuts down fine. If in kodi, it exits to ES and then shuts down. If in retroarch, it just shuts down without saving meta data. Using the kill portion as a exit button. Nothing happens in retroarch, but kodi does exit.

                                      1 Reply Last reply Reply Quote 0
                                      • F
                                        FlashPC
                                        last edited by

                                        Hi guys, this is only a hypothetical question. Is it possible to reset the order of the joysticks on the raspberry pi from the command line without rebooting.

                                        As far as I know udev takes care of the js ordering. Yet emulators like Daphne only uses js0.

                                        So can it be done where the script takes a snapshot of the udev js order, then asks you which usb device to use, then organise the list to have your desired device use the js0 slot and disable the rest. Then on the emulator exit return the udev js order to what it was.

                                        meleuM 1 Reply Last reply Reply Quote 0
                                        • meleuM
                                          meleu @FlashPC
                                          last edited by meleu

                                          @FlashPC You don't need to reboot to change the js* order. I think that changing the plugs is enough.

                                          I don't know any way to set a joystick to be the js0 "on-the-fly" (keeping all of them connected). I've read something about using udev rules to set a specific controller to be the js0, but I'm afraid it isn't possible to change it on-the-fly.

                                          By the way, I've wrote a script to let the user choose which controller to use for RetroArch players 1-4, but it works only for RetroArch emulators/cores.

                                          • Useful topics
                                          • joystick-selection tool
                                          • rpie-art tool
                                          • achievements I made
                                          1 Reply Last reply Reply Quote 0
                                          • F
                                            FlashPC
                                            last edited by

                                            @meleu the retroarch joystick selector is sweet, and it works great with the retroarch cores.

                                            I did read somewhere that it might be possible to kill the udev process, and change the udev rules but that was using red hat linux I think....

                                            1 Reply Last reply Reply Quote 0
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