From: Vincent Le Gallic <legallic@crans.org>
Date: Sun, 29 Sep 2013 17:01:49 +0000 (+0200)
Subject: Pour md5sumer plein de fichiers
X-Git-Url: http://gitweb.pimeys.fr/?a=commitdiff_plain;h=99f7ef462151c69272248a38eaaa0dc12193c38b;p=scripts-20-100.git

Pour md5sumer plein de fichiers
---

diff --git a/md5sum.py b/md5sum.py
new file mode 100755
index 0000000..f26d29a
--- /dev/null
+++ b/md5sum.py
@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+# -*- encoding: utf-8 -*-
+
+## trouvé sur http://code.activestate.com/recipes/266486/
+
+## md5hash
+##
+## 2004-01-30
+##
+## Nick Vargish
+##
+## Simple md5 hash utility for generating md5 checksums of files. 
+##
+## usage: md5hash <filename> [..]
+##
+## Use '-' as filename to sum standard input.
+
+import hashlib
+import sys
+
+def sumfile(fobj):
+    '''Returns an md5 hash for an object with read() method.'''
+    m = hashlib.md5()
+    while True:
+        d = fobj.read(8096)
+        if not d:
+            break
+        m.update(d)
+    return m.hexdigest()
+
+
+def md5sum(fname):
+    '''Returns an md5 hash for file fname, or stdin if fname is "-".'''
+    if fname == '-':
+        ret = sumfile(sys.stdin)
+    else:
+        try:
+            f = file(fname, 'rb')
+        except:
+            return 'Failed to open file'
+        ret = sumfile(f)
+        f.close()
+    return ret
+
+
+# if invoked on command line, print md5 hashes of specified files.
+if __name__ == '__main__':
+    for fname in sys.argv[1:]:
+        print '%32s  %s' % (md5sum(fname), fname)
+
+
+