
crc -- compute the CRC for files (EXTERNAL) [v1.0]
       Written by Phade Software

syntax: crc <pathname>

ex:     crc davex

crc computes a number, called the CRC, for the specified files.

The CRC for a file is entirely dependent on the file's contents, and
it is very unlikely that two files whose contents are different will
have the same CRCs. Thus, crc can be used to determine whether a file
has the expected contents.

NOTE: If the file (pathname) is not existing, crc is not recognizing
      this, but printing a CRC number anyway.
