It is extremely easy to sort the data by using Linux sort.

sort is a POSIX standard utility — it ships on every Unix-like system (Linux, BSD, macOS) and does exactly one thing: reads lines from stdin and writes them back in order. The key ingredient here is LC_ALL. Without it, sort uses the C locale and orders characters by raw byte value — accented letters, Cyrillic, and other non-ASCII characters end up in arbitrary positions. Setting LC_ALL=uk_UA.UTF-8 (or any other UTF-8 locale that matches your data) tells sort to use the locale’s collation rules.

macOS ships with pbcopy and pbpaste — two small utilities that treat the system clipboard as a plain stream. pbpaste writes the clipboard contents to stdout; pbcopy reads stdin and puts it into the clipboard. Pipe them around sort and you get in-place clipboard sorting without touching a file:

pbpaste | LC_ALL=uk_UA.UTF-8 sort | pbcopy

Five flags cover most real-world needs: -u removes duplicate lines, -r reverses the order, -f makes the comparison case-insensitive, -n sorts by numeric value instead of lexicographically (so 10 comes after 9), and -k lets you sort by a specific field rather than the whole line — paired with -t to set a custom delimiter for CSVs or tab-separated data.

Copy a messy list, run one command, paste a clean one.