Bash scripts for Android screen control in a Linux Deploy "chroot".

With code saved in folder "~/adb-scrcpy-scripts"...

File "TERMUX_STOP_scrcpy_in_Linux_script.sh":

1. ... platform-tools/adb push ~/adb-scrcpy-scripts/TERMUX_STOP_scrcpy_in_Linux_script.sh /sdcard/TERMUX_STOP_scrcpy_in_Linux_script.sh
2. https://wiki.termux.com/wiki/Internal_and_external_storage
3. Termux: mv ~/storage/shared/TERMUX_STOP_scrcpy_in_Linux_script.sh ~/.shortcuts/TERMUX_STOP_scrcpy_in_Linux_script.sh
4. Termux: chmod +rwx ~/.shortcuts/TERMUX_STOP_scrcpy_in_Linux_script.sh

and do that for "TERMUX_scrcpy_in_Linux_script.sh".

(profile: "linux", Mounts + GUI + X11 subsystem enabled in "Properties" -> new mounts: "/system/xbin/" > "/system/xbin/", "/data/local/tmp/" > "/data-tmp/", "/sdcard/" > "/sdcard/", update Settings > PATH variable "/system/xbin",
https://github.com/meefik/linuxdeploy#faq, mkdir /data/local/mnt/etc/ if it doesn't exist)

... platform-tools/adb shell                                           # remote device shell
  su                                                                     # root login
    /data/data/ru.meefik.linuxdeploy/files/bin/linuxdeploy -p linux shell  # container root login
      uname -m                                                               # the machine hardware name
      exit

    # If hardware name is "aarch64", replace BusyBox package with apt package:
    mount -o rw,remount /system 2>/dev/null || mount -o rw,remount / 2>/dev/null
    rm /system/xbin/ar

    exit
  exit

If the machine hardware is "x86_64": https://developer.android.com/studio/releases/platform-tools#downloads,
copy that "platform-tools" folder to $HOME, ... platform-tools/adb push ~/platform-tools /sdcard/platform-tools

1. ... platform-tools/adb push ~/adb-scrcpy-scripts/add_to_container.sh /sdcard/add_to_container.sh
2. ... platform-tools/adb shell
3. su --command "cat /sdcard/add_to_container.sh > /data/local/tmp/add_to_container.sh && /data/data/ru.meefik.linuxdeploy/files/bin/linuxdeploy -p linux shell"
   • bash -c ". /data-tmp/add_to_container.sh [that hardware name]"
   • exit
4. su --command "rm /data/local/tmp/add_to_container.sh"

...
$ exit
... platform-tools/adb push ~/adb-scrcpy-scripts/LINUX_CONTAINER/ /sdcard/
... platform-tools/adb shell                                           # remote device shell
  su                                                                     # root login
    /data/data/ru.meefik.linuxdeploy/files/bin/linuxdeploy -p linux shell  # container root login
      sudo -u android bash -c 'mv /sdcard/LINUX_CONTAINER/ ~/Desktop/'
      readarray -t files <<<"$(ls /home/android/Desktop/LINUX_CONTAINER/ | sed -E '/.+\.[^s][^h].*/d')";\
        declare -p files;
      for (( i=0 ; i < ${#files[*]} ; ++i )); do chmod u+x "/home/android/Desktop/LINUX_CONTAINER/${files[$i]}"; \
        /bin/chown android "/home/android/Desktop/LINUX_CONTAINER/${files[$i]}"; done
      exit
    exit
  exit

Login to container in VNC X11 (Linux Deploy -> "START", XServer XSDL), run (~/Desktop/)LINUX_CONTAINER/execute_adb_scrcpy.sh...