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s9 Python utility to print MD5 checksums of argument files.
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usage: sum5 [-b] [-t] [-l] [-s bufsize] [file ...]
-b : read files in binary mode (default)
-t : read files in text mode (you almost certainly don't want this!)
-l : print last pathname component only
-s bufsize: read buffer size (default %d)
file ... : files to sum; '-' or no files means stdin
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