$ docker run --rm -it --entrypoint /bin/bash ownyourbits/nextcloudpi
Unable to find image 'ownyourbits/nextcloudpi:latest' locally
latest: Pulling from ownyourbits/nextcloudpi
f5d23c7fed46: Already exists
36cca2fb6ce6: Pull complete
539f6f68d216: Pull complete
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712fa3096344: Pull complete
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d154cb0276e7: Pull complete
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18fec025f9f3: Pull complete
Digest: sha256:4eafc68a105bd284bab139555c51f9d019297159500c3a770738a7ab7907c113
Status: Downloaded newer image for ownyourbits/nextcloudpi:latest
root@fa71894cc735:/# file /usr/bin/jq
/usr/bin/jq: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=ea589b38db00f51ab2af31249aef185c5f57203c, stripped
root@fa71894cc735:/# hexdump -Cv < /usr/bin/jq | head -n 20
00000000  7f 45 4c 46 02 01 01 00  00 00 00 00 00 00 00 00  |.ELF............|
00000010  03 00 3e 00 01 00 00 00  50 30 00 00 00 00 00 00  |..>.....P0......|
00000020  40 00 00 00 00 00 00 00  38 51 00 00 00 00 00 00  |@.......8Q......|
00000030  00 00 00 00 40 00 38 00  09 00 40 00 1b 00 1a 00  |....@.8...@.....|
00000040  06 00 00 00 04 00 00 00  40 00 00 00 00 00 00 00  |........@.......|
00000050  40 00 00 00 00 00 00 00  40 00 00 00 00 00 00 00  |@.......@.......|
00000060  f8 01 00 00 00 00 00 00  f8 01 00 00 00 00 00 00  |................|
00000070  08 00 00 00 00 00 00 00  03 00 00 00 04 00 00 00  |................|
00000080  38 02 00 00 00 00 00 00  38 02 00 00 00 00 00 00  |8.......8.......|
00000090  38 02 00 00 00 00 00 00  1c 00 00 00 00 00 00 00  |8...............|
000000a0  1c 00 00 00 00 00 00 00  01 00 00 00 00 00 00 00  |................|
000000b0  01 00 00 00 05 00 00 00  00 00 00 00 00 00 00 00  |................|
000000c0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000000d0  20 41 00 00 00 00 00 00  20 41 00 00 00 00 00 00  | A...... A......|
000000e0  00 00 20 00 00 00 00 00  01 00 00 00 06 00 00 00  |.. .............|
000000f0  90 4b 00 00 00 00 00 00  90 4b 20 00 00 00 00 00  |.K.......K .....|
00000100  90 4b 20 00 00 00 00 00  80 04 00 00 00 00 00 00  |.K .............|
00000110  d0 04 00 00 00 00 00 00  00 00 20 00 00 00 00 00  |.......... .....|
00000120  02 00 00 00 06 00 00 00  a0 4b 00 00 00 00 00 00  |.........K......|
00000130  a0 4b 20 00 00 00 00 00  a0 4b 20 00 00 00 00 00  |.K ......K .....|
root@fa71894cc735:/# md5sum /usr/bin/jq
18217e14a732d6efbc657f1791b8a248  /usr/bin/jq
root@fa71894cc735:/#