GRIB_INDEX_BUILD(1)

💖 NAME 💖

grib_index_build — bestie, it's literally the manual page for grib_index_build. That's it. That's the name. (GRIB_INDEX_BUILD(1), in case you were wondering what section we're in 🎀)

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🌸 DESCRIPTION 🌸

✨ DESCRIPTION ✨

Okay so what does this thing even do? Bestie, it builds an index file for a whole set of input GRIB files. That's the whole vibe. 🦋

✨ USAGE ✨

grib_index_build [options] grib_file grib_file ...

Yes queen, you just keep yeeting GRIB files at it. One. Then another. Then another. ✨

✨ OPTIONS ✨

• -f — Force. Like, force the execution NOT to fail on error. She's stubborn and she's thriving. 💅
• -o output_index_file — The output gets written to output_index_file. And listen: if an output index file is required but you didn't use -o, the output index is written to 'gribidx'. Periodt.
• -k key1,key2,... — You specify a list of keys to index on. By default the input files get indexed on the MARS keys. And for each key you can request a string (key:s) or a double (key:d) or an integer (key:i) type. iykyk 🧚
• -V — Print version. The classic.
• -T T | B | A — Message type. T -> GTS, B -> BUFR, A -> Any (Experimental). The input file is interpreted according to the message type. ⭐
• -M — Multi-field support OFF. She's turning off support for multiple fields in a single GRIB message. One field, one moment, main character energy only. 👑
• -N — Do NOT compress index. Because by default the index IS compressed, to remove keys with only one value. So -N is your "leave my keys alone" flag. no cap
• -h — Display this help text and exit. The friendly escape hatch. 🫶

✨ SEE ALSO ✨

Full documentation and examples at:

<https://confluence.ecmwf.int/display/ECC/grib_index_build>

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okay bestie real talk — the original page literally duplicates this ENTIRE section. Same NAME, same DESCRIPTION, same USAGE, same OPTIONS, same SEE ALSO. And I am nothing if not thorough, so here's round two, exactly as it appears. No gatekeeping, no skipping, not me leaving out the twin 💀

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💖 NAME 💖 (the encore 🎀)

grib_index_build

🌸 DESCRIPTION 🌸 (again, fr fr)

✨ DESCRIPTION ✨

Build an index file for a set of input GRIB files. 💖

✨ USAGE ✨

grib_index_build [options] grib_file grib_file ...

✨ OPTIONS ✨

• -f — Force. Force the execution not to fail on error.
• -o output_index_file — Output is written to output_index_file. If an output index file is required and -o is not used, the output index is written to 'gribidx'.
• -k key1,key2,... — Specify a list of keys to index on. By default the input files are indexed on the MARS keys. For each key a string (key:s) or a double (key:d) or an integer (key:i) type can be requested.
• -V — Print version.
• -T T | B | A — Message type. T->GTS, B->BUFR, A->Any (Experimental). The input file is interpreted according to the message type.
• -M — Multi-field support off. Turn off support for multiple fields in a single GRIB message.
• -N — Do not compress index. By default the index is compressed to remove keys with only one value.
• -h — Display this help text and exit.

✨ SEE ALSO ✨

Full documentation and examples at:

<https://confluence.ecmwf.int/display/ECC/grib_index_build>

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And that's the whole page, bestie!! 🎀✨ This was grib_index_build, from October 2026, living in section GRIB_INDEX_BUILD(1) — you ate that, and so did I. Mwah 💅🦋🌸