SRCCRC(8) System Manager's Manual SRCCRC(8)NAME
srccrc - compute CRC checksums of the entire source tree
OPTIONS EXAMPLES DESCRIPTION
Srccrc traverses the entire /usr/include and /usr/src tree to run the crc command on all files found. The result is a long list of file-
names with their checksums. The filenames are relative to /usr.
The command makes an effort to remove most junk files such as .o, .bak and files in bin directories. It cannot find single binaries how-
ever, so you will have to run make clean in /usr/src to be able to make a crc list that contains only source files.
Two crc files can be compared easily with the diff command. A crc list of the original source tree can be found in /usr/src/crclist.
SEE ALSO crc(1).
Check Out this Related Man Page
Digest::CRC(3) User Contributed Perl Documentation Digest::CRC(3)NAME
Digest::CRC - Generic CRC functions
# Functional style
use Digest::CRC qw(crc64 crc32 crc16 crcccitt crc crc8 crcopenpgparmor);
$crc = crc64("123456789");
$crc = crc32("123456789");
$crc = crc16("123456789");
$crc = crcccitt("123456789");
$crc = crc8("123456789");
$crc = crcopenpgparmor("123456789");
$crc = crc($input,$width,$init,$xorout,$refout,$poly,$refin,$cont);
# add data to existing
$crc = crc32("ABCD", $crc);
# OO style
$ctx = Digest::CRC->new(type=>"crc16");
$ctx = Digest::CRC->new(width=>16, init=>0x2345, xorout=>0x0000,
refout=>1, poly=>0x8005, refin=>1, cont=>1);
$digest = $ctx->digest;
$digest = $ctx->hexdigest;
$digest = $ctx->b64digest;
The Digest::CRC module calculates CRC sums of all sorts. It contains wrapper functions with the correct parameters for CRC-CCITT, CRC-16,
CRC-32 and CRC-64, as well as the CRC used in OpenPGP's ASCII-armored checksum.
Oliver Maul, email@example.com
CRC algorithm code taken from "A PAINLESS GUIDE TO CRC ERROR DETECTION
The author of this package disclaims all copyrights and releases it into the public domain.
perl v5.18.2 2017-10-06 Digest::CRC(3)
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