Most list operations, but for files made of lines of text. Many files on UNIX-likes are line-oriented (e.g. /etc/passwd). It is also true for many documented scientific file formats.
Published: 13 Apr 2022
OCaml library for very basic operations on files made of lines of text
Because text is better for humans compared to JSON/XML/you-name-it. More seriously, many UNIX files and scientific file formats are line-oriented.