gohash is a simple directory scanning and MD5 hashing package written in Go. It has options to specify the input directory (files to be scanned), output file (where the output shown below goes), and maximum file size for hashed files (so you don't overstress your computer hashing enormous files).
XXXXXXXXXXX$ ./bin/gohash -h
Usage of ./bin/gohash:
-maxSize int
The maximum size of files to be hashed (default 10000000)
-outputFile string
The file where MD5 hashes will be output (default "/tmp/gohash.dat")
-scanDir string
The directory that will be scanned
/usr/local/bro/bin/bro: e3e65b3b6cae4f2255db11646b0aebc3
/usr/local/bro/bin/bro-config: ae41f9132ab2a442a159ea5cce426dd1
/usr/local/bro/bin/bro-cut: fe1d3232ffbf413dd2a4928bf6ab98cb
/usr/local/bro/bin/broccoli-config: 88ecca823ca13c1a595d732cd21d6396
/usr/local/bro/bin/broctl: 406b2cf55b3a0150bead3fa6c61dfebf
/usr/local/bro/bin/capstats: d503f8952a5b12e3322d13733c1f2eb9
/usr/local/bro/bin/trace-summary: 531cc127cf73a5804a4b4d17f393c4a9
/usr/local/bro/etc/broccoli.conf: b7fac220821be497b0d5a79f695c01a4
/usr/local/bro/etc/broctl.cfg: eecf5b01dea7d569370af3271e1c0f15
/usr/local/bro/etc/broctl.cfg.example: cdd476c88cc9f2a0a2e6f2966132e59e
/usr/local/bro/etc/networks.cfg: afed5d6ba219183dd5d7107b60d9ad40
/usr/local/bro/etc/node.cfg: 91e7e9acab1862487f22d9f3c15ece02
/usr/local/bro/etc/node.cfg.example: 754db8253db4ebd1262762895fefd5ca
/usr/local/bro/include/broccoli.h: e56d5b44f979d2693a0ae03e721f60b6
/usr/local/bro/lib/broctl/BroControl/__init__.py: 7759f50933068da38483420a7e9988a4
/usr/local/bro/lib/broctl/BroControl/brocmd.py: dfffbc6bbe26729ee332d2cd72ac2706
/usr/local/bro/lib/broctl/BroControl/broctl.py: ff8cb14bdd566ca8b70e6ceafad9552f
/usr/local/bro/lib/broctl/BroControl/cmdresult.py: 7f5938c7a25ef75759cdbdf8c92ec0bf
/usr/local/bro/lib/broctl/BroControl/config.py: 2e67a1fe00ed35e2dd7f1d6a23d4a0e8
/usr/local/bro/lib/broctl/BroControl/control.py: 5e3fac66776e21bb9ebc2ca777058d1e
/usr/local/bro/lib/broctl/BroControl/cron.py: 680305ed2422e00ca1e2c21f691e3b5f
/usr/local/bro/lib/broctl/BroControl/doc.py: 030fa15f89ca2483949f8de83fa935b5
/usr/local/bro/lib/broctl/BroControl/events.py: 4d5053f9f0d1a9c9490a1043a7363bf6
/usr/local/bro/lib/broctl/BroControl/execute.py: 82dfef0862f371cf039b6e93ce414ded
/usr/local/bro/lib/broctl/BroControl/install.py: b88e2858a4555a3a9fa3dbd2f40bb637
/usr/local/bro/lib/broctl/BroControl/node.py: 080692c8172ad1a7a9839930f738828c
/usr/local/bro/lib/broctl/BroControl/options.py: 104d6ec57ca3db6021e69aa70c822cc1
/usr/local/bro/lib/broctl/BroControl/plugin.py: d522ab8335c67b90799623483f151d10
/usr/local/bro/lib/broctl/BroControl/pluginreg.py: bb70e266f624b4c484bd4e30497b3fb9
/usr/local/bro/lib/broctl/BroControl/printdoc.py: ae8104a096ffb3b6627d3da5a990cc92
/usr/local/bro/lib/broctl/BroControl/py3bro.py: e9c4119e75f95fa64306e865fff5b008
/usr/local/bro/lib/broctl/BroControl/ssh_runner.py: 8717ff5f209ad6f196caeba5748242fd
...