user:root and user for android
#1|root@A880:/storage/sdcard1/no1
# set | grep HOME
HOME=/data
#
root@A880:/storage/sdcard1/no1
# exit
#
shell@A880:/storage/sdcard1/no1
$ set | grep HOME
HOME=/data
#
shell@A880:/storage/sdcard1/no1
$ ls -al /data
opendir failed, Permission denied
#
1|shell@A880:/storage/sdcard1/no1
$ sudo ls -al /data
/system/bin/sh: sudo: not found
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