Version 0.2.1 behavior is documented here. Thesupport record separates local verification frompublished MoonX behavior; moonx examples use registry releases.
Select fields or character positions from each line:
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 fielddelimiter (default TAB), -s skip lines without the delimiter, and -zfor NUL-delimited records. Listsaccept N, N-M, N-, and -M, separated by commas; output preservesinput order.
An empty -d value is rejected because the delimiter must be one byte.Delimiter and -s options are rejected outside field mode.
Standalone --version prints exactly cut 0.2.1 followed by onenewline. Standalone --help starts with Usage: cut, lists bothmetadata options, and ends with a newline. Both write to stdout, leave stdinunread, and exit with status 0. Exact-version publication and verificationremain recorded separately in the support record.