File: mergeall-android-scripts/_readme-items/LOGS/permissions-indepth-before-after.txt
##################################################################### # This file demos Termux permissions, before and after storage setup. # It was run on Android Oreo, using a Samsung Galaxy Note 9 device. # In this test: # /storage/6C2A-1618 is the phone's removable SD card # /sdcard is the phone's internal storage # /data/data is the app's private storage ##################################################################### #==================================================================== # BEFORE termux-setup-storage is run # # With existing Android/data/com.termux in both internal storage # and SD card, and existing text files at various locations. #==================================================================== Welcome to Termux! # SHELL access $ ls /data/data/com.termux cache code_cache files shared_prefs $ ls /sdcard/work ls: can't open '/sdcard/work': Permission denied $ ls /storage/6C2A-1618 ls: can't open '/storage/6C2A-1618': Permission denied $ ls /storage/6C2A-1618/Android/data/com.termux MY-STUFF TEST files Sheets-temp _experiments test.txt $ ls /sdcard/Android/data/com.termux test.txt $ cat /sdcard/test.txt cat: can't open '/sdcard/test.txt': Permission denied $ cat /storage/6C2A-1618/test.txt cat: can't open '/storage/6C2A-1618/test.txt': Permission denied $ cat /sdcard/Android/data/com.termux/test.txt At Termux nested app folder in internal storage $ cat /storage/6C2A-1618/Android/data/com.termux/test.txt xxx # PYTHON access $ pkg install python $ python Python 3.7.2 (default, Jan 16 2019, 21:05:09) ... >>> open('/data/data/com.termux/xxx.txt', 'w').write('1234') 4 >>> open('/sdcard/xxx.txt', 'w').write('1234') Traceback (most recent call last): File "<stdin>", line 1, in <module> PermissionError: [Errno 13] Permission denied: '/sdcard/xxx.txt' >>> >>> open('/storage/6C2A-1618/xxx.txt', 'w').write('1234') Traceback (most recent call last): File "<stdin>", line 1, in <module> PermissionError: [Errno 13] Permission denied: '/storage/6C2A-1618/xxx.txt' >>> >>> open('/sdcard/Android/data/com.termux/xxx.txt', 'w').write('1234') 4 >>> open('/storage/6C2A-1618/Android/data/com.termux/xxx.txt', 'w').write('1234') 4 # WHEN the app-specific folder on SD has been removed (or doesn't yet exist) >>> open('/storage/6C2A-1618/Android/data/com.termux/xxx.txt', 'w').write('1234') Traceback (most recent call last): File "<stdin>", line 1, in <module> FileNotFoundError: [Errno 2] No such file or directory: '/storage/6C2A-1618/Android/data/com.termux/xxx.txt' # READ access has the same constraints >>> open('/storage/6C2A-1618/test.txt', 'r').read() Traceback (most recent call last): File "<stdin>", line 1, in <module> PermissionError: [Errno 13] Permission denied: '/storage/6C2A-1618/test.txt' >>> >>> open('/storage/6C2A-1618/Android/data/com.termux/test.txt', 'r').read() 'xxx' >>> open('/sdcard/test.txt', 'r').read() Traceback (most recent call last): File "<stdin>", line 1, in <module> PermissionError: [Errno 13] Permission denied: '/sdcard/test.txt' >>> >>> open('/sdcard/Android/data/com.termux/test.txt', 'r').read() 'At Termux nested app folder in internal storage' #==================================================================== # AFTER termux-setup-storage is run # # Nearly everything is available _except_ updates outside the # app-specific folder on removable drives (hence required nesting). #==================================================================== $ termux-setup-storage # SHELL access $ ls /data/data/com.termux cache files xxx.txt code_cache shared_prefs $ ls /sdcard/work Admin-Mergeall Mergeall-source Mergeall-source.zip ad-hoc code mergeall-android-scripts mergeall-android-scripts.zip $ ls /storage/6C2A-1618 Admin-Mergeall Android DCIM LOST.DIR MY-STUFF TEST alsoalso-added-on-android.xlsx my-OTHER-STUFF test.txt $ ls /storage/6C2A-1618/Android/data/com.termux MY-STUFF TEST files xxx.txt Sheets-temp _experiments test.txt $ ls /sdcard/Android/data/com.termux files test.txt xxx.txt $ cat /sdcard/test.txt On Internal Storage root $ cat /storage/6C2A-1618/test.txt On SD root $ cat /storage/6C2A-1618/Android/data/com.termux/test.txt xxx $ cat /sdcard/Android/data/com.termux/test.txt At Termux nested app folder in internal storage # PYTHON access $ python Python 3.7.2 (default, Jan 16 2019, 21:05:09) ... >>> open('/data/data/com.termux/xxx.txt', 'w').write('1234') 4 >>> open('/sdcard/test.txt', 'w').write('1234') 4 >>> open('/sdcard/work/test.txt', 'w').write('1234') 4 >>> open('/storage/6C2A-1618/test.txt', 'r').read() 'On SD root' >>> open('/storage/6C2A-1618/xxx.txt', 'w').write('1234') # <== THE KILLER JOKE... Traceback (most recent call last): File "<stdin>", line 1, in <module> PermissionError: [Errno 13] Permission denied: '/storage/6C2A-1618/xxx.txt' >>> open('/storage/6C2A-1618/Android/data/com.termux/xxx.txt', 'w').write('1234') 4 >>> open('/sdcard/Android/data/com.termux/xxx.txt', 'w').write('1234') 4