  '  Computes checksum for a file or files.   4  Syntax : $ CHKSUM [options] file1 [file2 file3 ...]  G  File   names  accepts  wildcards.   Only  the  last  version  will  be   considered under VMS OS.     Options are : 	-h	shows this help 0 	-b	BSD computation with BUFSIZ blocks (default)# 	-r	BSD computation with 1Kb blocks # 	-s	512-byte blocks SYSV compatible  	-o	1Kb blocks SYSV compatible9 	-c	Cyclic Redundancy Check (CRC) checksum and byte count ? 	-m	MD5 checksum according to the definition of MD5 in RFC 1321   