SHA384SUM(1)

📦
version 9.10 · 5 versions
, in ubuntu stonking

💖 SHA384SUM 💖

okay so bestie, welcome to sha384sum(1) — the manual page for the little checksum icon that lives in your terminal. let's get into it, no cap ✨

🌸 NAME 🌸

sha384sum — compute and check SHA384 message digest. that's it, that's the whole job, and it does it flawlessly. 💅

🦋 SYNOPSIS 🦋

sha384sum [OPTION]... [FILE]...

yes queen, options first, files after. go wild.

✨ DESCRIPTION ✨

So basically: this prints or checks SHA384 (384-bit) checksums. it's a legacy interface to the cksum utility — like, it's the vintage handbag of the checksum world, still serving looks, still fully functional. 👜

Real talk: with no FILE, or when FILE is -, it reads standard input. so if you just type sha384sum and hit enter, it's gonna sit there politely waiting for you to feed it something. 👑

💅 the flags (OPTIONS) 💅

  • -b, --binary — read in binary mode 🫶
  • -c, --check — read checksums from the FILEs and check them. this is the vibe-check mode, literally ✨
  • --tag — create a BSD-style checksum 🎀
  • -t, --text — read in text mode (default, bestie, you don't even have to ask)
  • -z, --zero — end each output line with NUL, not newline, and disable file name escaping 🌀
  • --help — display this help and exit 🙈
  • --version — output version information and exit ⭐

🔥 the "only when verifying checksums" five 🔥

the next five options are only useful when verifying checksums. like, they're the backstage-pass options, they don't do anything in normal mode, iykyk:

  • --ignore-missing — don't fail or report status for missing files. she simply does not perceive them 💀
  • --quiet — don't print OK for each successfully verified file. quiet luxury, no receipts 💜
  • --status — don't output anything, status code shows success. silent but it ate 👑
  • --strict — exit non-zero for improperly formatted checksum lines. strict queen, no nonsense 🎀
  • -w, --warn — warn about improperly formatted checksum lines. she WILL tell you 📢

🧚 the deets 🧚

The sums are computed as described in FIPS-180-2. when checking, the input should be a former output of this program — so don't be feeding it random stuff from your camera roll, it wants its own receipts back. 🌈

the default mode is to print a line with: the checksum, a space, a character indicating input mode ('*' for binary, ' ' for text or where binary is insignificant), and the name for each FILE. 🍓

✨ fun fact bestie: there is no difference between binary mode and text mode on GNU systems. yes, the two modes are the same girl on GNU. iconic behaviour honestly. 💖

👑 AUTHOR 👑

Written by Ulrich Drepper, Scott Miller, and David Madore. legends, all three of them, we stan. 🫶

😭 REPORTING BUGS 😭

Found a bug? don't suffer in silence, tell the people:

🌟 SEE ALSO 🌟

💜 This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. (read that again bestie, no warranty, fr fr)

and that's the whole page!! this manual page came to you from GNU coreutils 9.10, dated August 2026, and yes the whole thing was giving main character energy from start to finish. checksums? verified. vibes? immaculate. periodt. 💅✨🦋

📦 where this page comes from