revsu

revsu

#!/system/bin/sh

# https://github.com/topjohnwu/Magisk/blob/master/native/src/core/su/su_daemon.cpp
# https://android.stackexchange.com/a/217104/400354

UID=$(grep com.termux /data/system/packages.list | awk '{print $2}')


############################################################################################################
# This command needs to be edited manually before use,
# you need to execute the command `/system/bin/id` in Termux as a normal user to get the corresponding group id number,
# replacing the following ID numbers obtained on my phone
############################################################################################################

/system/bin/su \
--group $UID \
--supp-group 3003 \
--supp-group 9997 \
--supp-group 20266 \
--supp-group 50266 \
--supp-group 99909997 \
$UID \
-c 'PATH=/system/bin:/system/xbin env -i \
 ANDROID_ART_ROOT=/apex/com.android.art \
 ANDROID_DATA=/data \
 ANDROID_I18N_ROOT=/apex/com.android.i18n \
 ANDROID_ROOT=/system \
 ANDROID_TZDATA_ROOT=/apex/com.android.tzdata \
 EXTERNAL_STORAGE=/sdcard \
 HISTCONTROL=ignoreboth \
 LD_PRELOAD=/data/data/com.termux/files/usr/lib/libtermux-exec.so \
 PATH=/data/data/com.termux/files/usr/bin:/data/data/com.termux/files/usr/bin/applets:/system/bin:/system/xbin:/sbin:/sbin/bin  \
 PREFIX=/data/data/com.termux/files/usr  \
 HOME=/data/data/com.termux/files/home  \
 PWD=/data/data/com.termux/files/home  \
 TMPDIR=/data/data/com.termux/files/usr/tmp  \
 TERM=xterm-256color \
 /data/data/com.termux/files/usr/bin/fish'

This is a reverse operation command similar to the tsu command under Termux, mainly used to return to the normal user under root, in order to facilitate the installation and update functions of the pkg command.