Name
md5sum -- generates or checks MD5 message digests
Synopsis
| md5sum [-b] [-c [file]] | [file...] | 
Options
- -b
- Use binary mode.  
- -c [file]
- Check md5sum of all files listed in file against the checksum listed
in the same file. The actual  of that file is the same as output
of md5sum.  That is, each line in the file describes a file.