NAME

       xymondigest - calculate message digests

SYNOPSIS

       xymondigest md5|sha1|sha256|sha512|sha224|sha384|rmd160 [filename]

DESCRIPTION

       xymondigest(1)  is  a  utility  to calculate message digests for a file or document. It is
       used when defining HTTP- or FTP-based content checks, where xymonnet(1) checks that a  URL
       returns  a  specific  document;  instead  of  having  to  compare the entire document, the
       comparison is done against a pre-computed message digest value using the  MD5,  RIPEMD160,
       SHA1 or any of the SHA2 (SHA-512, SHA-256, SHA-384, SHA-224) message digest algorithms.

       The  optional  filename  parameter  is  the  input  file  whose  message  digest should be
       calculated; if no filename is given, the data is read from standard input.

       xymondigest outputs a string containing the digest  algorithm  and  the  computed  message
       digest.  This  is in a format suitable for use in the hosts.cfg(5) definition of a content
       check.

EXAMPLE

          $ xymondigest md5 index.html
          md5:88b81b110a85c83db56a939caa2e2cf6

          $ curl -s http://www.foo.com/ | xymondigest sha1
          sha1:e5c69784cb971680e2c7380138e04021a20a45a2

SEE ALSO

       xymonnet(1), hosts.cfg(5)