XYMONDIGEST(1)

💅 XYMONDIGEST(1) — the groupchat manual page 💅

okay bestie, pull up a chair 🎀 this is xymondigest, and its whole entire job is calculating message digests. that's it. that's the gig. and it does it beautifully. no cap.

✨ NAME ✨

xymondigest — calculate message digests 🧚

✨ SYNOPSIS ✨

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

✨ DESCRIPTION ✨

so xymondigest(1) is this little utility that calculates message digests for a file or a document. and the way it actually gets used is chef's kiss — it's for when you're defining HTTP- or FTP-based content checks, y'know, the ones where xymonnet(1) checks that a URL returns a specific document. and instead of sitting there comparing the ENTIRE document character by character (exhausting, honestly, we don't have the time 💀), the comparison gets done against a pre-computed message digest value instead. so much faster. so much cleaner. it's giving efficiency.

and the algorithms it'll do that with? literally all the icons: MD5, RIPEMD160, SHA1, or any of the SHA2 family (SHA-512, SHA-256, SHA-384, SHA-224). pick your fighter 🫶

now, that optional filename parameter? that's the input file whose message digest you want calculated. super straightforward. and if you don't hand it a filename at all — no filename, nothing — then the data just gets read from standard input. yes queen, pipes work. we love a flexible icon.

so what does it actually spit out? xymondigest outputs a string containing the digest algorithm and the computed message digest. and the format it uses is specifically suitable for use in the hosts.cfg(5) definition of a content check. so you can basically copy-paste it straight in. convenient? yes. iconic? also yes. 🌟

✨ EXAMPLE ✨

okay watch this, this is the good part:

$ xymondigest md5 index.html
md5:88b81b110a85c83db56a939caa2e2cf6

like. look at that. clean. and then my personal fave, the pipe moment 🌈:

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

curl the URL, pipe it in, digest comes out. main character energy fr fr.

✨ SEE ALSO ✨

• xymonnet(1)
• hosts.cfg(5)

💀 reminder bestie: the digest is only as trustworthy as the algorithm, so don't come for me if you pick something spicy — the manual just tells you what it computes, not how to feel about it.

okay that's the whole page, you ate it, you understood it, periodt. 💖

this has been Xymon, Version 4.3.30: 4 Sep 2019 — mwah, catch you on the next manpage 🌸👑