https://uutils.github.io/coreutils/docs/utils/csplit.html
csplit - uutils Documentation
csplitdocumentation
https://ja.wikibooks.org/wiki/GNU_Core_Utilities/csplit
GNU Core Utilities/csplit - Wikibooks
core utilitiesgnucsplitwikibooks
https://manpages.ubuntu.com/manpages/questing/man1/gnucsplit.1.html
Ubuntu Manpage: csplit - split a file into sections determined by context lines
split a file into sections determined by context lines
https://docs.rs/uu_csplit/latest/uu_csplit/
uu_csplit - Rust
API documentation for the Rust `uu_csplit` crate.
uucsplitrust
https://lists.freebsd.org/archives/freebsd-bugs/2026-February/032924.html
[Bug 279227] csplit: handlesig is not async-signal-safe
bugcsplitasyncsignalsafe