pi@raspberrypi:~ $ ls -l ~ /home/pi/RetroPie/roms/
/home/pi:
total 152
-rw-r--r-- 1 pi pi 14002 Dec 25 21:48 kodi_crashlog-20191225_214758.log
-rw-r--r-- 1 pi pi 42979 Dec 26 00:29 kodi_crashlog-20191226_002833.log
-rw-r--r-- 1 pi pi 85197 Dec 27 02:43 kodi_crashlog-20191227_024248.log
drwxr-xr-x 7 pi pi  4096 May  3 02:25 RetroPie
drwxr-xr-x 7 pi pi  4096 May 23 15:44 RetroPie-Setup

/home/pi/RetroPie/roms/:
total 0
drwxr-xr-x 2 pi root 0 Dec 24 09:20 amstradcpc
drwxr-xr-x 2 pi root 0 May  5 18:55 arcade
drwxr-xr-x 2 pi root 0 May  2 16:52 atari2600
drwxr-xr-x 2 pi root 0 May  5 18:45 atari5200
drwxr-xr-x 2 pi root 0 May  2 16:52 atari7800
drwxr-xr-x 2 pi root 0 May  6 18:08 atari800
drwxr-xr-x 2 pi root 0 May 17 21:01 atarijaguar
drwxr-xr-x 2 pi root 0 May 18 21:27 atarilynx
drwxr-xr-x 2 pi root 0 May 23 12:22 atomiswave
drwxr-xr-x 2 pi root 0 May 22 18:13 cps1
drwxr-xr-x 2 pi root 0 May 22 18:11 cps2
drwxr-xr-x 2 pi root 0 May 22 18:08 cps3
drwxr-xr-x 2 pi root 0 May 23 15:24 daphne
drwxr-xr-x 2 pi root 0 May 21 06:35 dreamcast
drwxr-xr-x 2 pi root 0 May 23 09:10 fba
drwxr-xr-x 2 pi root 0 May  2 16:52 fds
drwxr-xr-x 2 pi root 0 May  2 16:52 gamegear
drwxr-xr-x 2 pi root 0 May  2 16:53 gb
drwxr-xr-x 2 pi root 0 May 17 18:42 gba
drwxr-xr-x 2 pi root 0 May  6 14:16 gbc
drwxr-xr-x 2 pi root 0 May 20 17:39 mame-libretro
drwxr-xr-x 2 pi root 0 May  5 16:57 mastersystem
drwxr-xr-x 2 pi root 0 May 23 10:38 megadrive
drwxr-xr-x 2 pi root 0 May 21 18:35 n64
drwxr-xr-x 2 pi root 0 Dec 27 01:56 nds
drwxr-xr-x 2 pi root 0 May 18 20:26 neogeo
drwxr-xr-x 2 pi root 0 May  5 16:46 nes
drwxr-xr-x 2 pi root 0 Dec 24 09:16 ngp
drwxr-xr-x 2 pi root 0 Dec 24 09:16 ngpc
drwxr-xr-x 2 pi root 0 May 17 20:56 pcengine
drwxr-xr-x 2 pi root 0 May 23 19:16 ports
drwxr-xr-x 2 pi root 0 May 23 10:54 psp
drwxr-xr-x 2 pi root 0 May 23 10:29 psx
drwxr-xr-x 2 pi root 0 May  5 18:06 saturn
drwxr-xr-x 2 pi root 0 May  5 17:00 sega32x
drwxr-xr-x 2 pi root 0 Dec 24 09:45 segacd
drwxr-xr-x 2 pi root 0 Dec 24 09:45 sg-1000
drwxr-xr-x 2 pi root 0 May 13 14:44 snes
drwxr-xr-x 2 pi root 0 Dec 24 10:38 vectrex
drwxr-xr-x 2 pi root 0 Dec 24 09:43 zxspectrum