From ac52913c57ee10dbc610ab35b8f8a982a770f845 Mon Sep 17 00:00:00 2001
From: Dayne Broderson <broderson@gmail.com>
Date: Thu, 6 Dec 2018 14:30:12 -0900
Subject: [PATCH] adding initial rhash cheatsheet

---
 sheets/rhash | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 sheets/rhash

diff --git a/sheets/rhash b/sheets/rhash
new file mode 100644
index 0000000..af9d015
--- /dev/null
+++ b/sheets/rhash
@@ -0,0 +1,13 @@
+# utility for computing hash sums https://sf.net/p/rhash/
+
+# compute sha256 for a file and store checksum in a file:
+rhash --sha256 file.txt > file.sha256
+
+# verify the file(s):
+rhash -c file.sha256
+
+# Generate a SHA256 hash file for all files in a directory tree:
+rhash -r --sha256 directory/ > directory.sha256
+
+# Verify all .sha256 files in a directory tree:
+rhash -cr --crc-accept=sha256 directory/