- linux
https://www.linuxquestions.org/questions/linux-general-1/ls-do-not-list-full-path-only-filename-657894/
ls --format single-column > a.txt
https://unix.stackexchange.com/questions/22218/linux-ls-to-show-only-filename-date-and-size
stat -c "%n" * > c.txt
- windows
dir GA*.txt /b/o:N > b.txt