#cut for moonx

Support note (2026-09-05): this README is supplementary. The support record is the only capability authority; it separates native compatibility evidence from Wasm policy and smoke evidence. Options mentioned here but not promoted in that record are not compatibility guarantees.

Select fields or character positions from each line:

printf 'x,y,z\n' | moonx cli/cut -d, -f1,3
moonx cli/cut -c 1-4 fixed.txt

Options: -f LIST field list, -b LIST byte list, -c LIST character list (the latter two are identical under the fixed C-locale byte profile), -d CHAR field delimiter (default TAB), -s skip lines without the delimiter, and -z for NUL-delimited records. Lists accept N, N-M, N-, and -M, separated by commas; output preserves input order.

An empty -d value is rejected because the delimiter must be one byte. Delimiter and -s options are rejected outside field mode.

Source Files

main.mbt

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