6 Summarizing files ******************* These commands generate just a few numbers representing entire contents of files.
· wc invocation Print newline, word, and byte counts. · sum invocation Print checksum and block counts. · cksum invocation Print CRC checksum and byte counts. · b2sum invocation Print or check BLAKE2 digests. · md5sum invocation Print or check MD5 digests. · sha1sum invocation Print or check SHA-1 digests. · sha2 utilities Print or check SHA-2 digests.