SUM(1) SUM(1)
NAME
sum, md5sum, sha1sum - calculate file's checksum
SYNOPSIS
sum file ...
md5sum [ file ... ]
DESCRIPTION
Sum prints the 32-bit checksum (actually a CRC), length in
bytes, and name of each file, one per line. It ignores
directories.
Md5sum prints the MD5 message digest (as 32 hexadecimal dig-
its) and the name of each file, separated by a tab, one per
line. If no files are given, the standard input is read.
Sha1sum is similar, but uses the US National Institute of
Standards and Technology's secure hash algorithm SHA1
instead of MD5. For each file, it prints its SHA1 secure
hash (as 40 hexadecimal digits) and the file's name, sepa-
rated by a tab, one per line. If no files are given,
sha1sum reads the standard input.
SOURCE
/appl/cmd/sum.b
/appl/cmd/md5sum.b
/appl/cmd/sha1sum.b
SEE ALSO
cmp(1), wc(1), crc(2), keyring-sha(2)