UNIX コマンド

dotinstall:~ $ ls
dotinstall:~ $ touch index.html
dotinstall:~ $ ls -l
total 0
-rw-r–r– 1 dotinsta wheel 0 Sep 8 21:06 index.html
dotinstall:~ $ rm -index.html
rm: unrecognized option: n
BusyBox v1.31.1 () multi-call binary.

Usage: rm [-irf] FILE…

Remove (unlink) FILEs

    -i      Always prompt before removing
    -f      Never prompt
    -R,-r   Recurse

dotinstall:~ $ ls
index.html
dotinstall:~ $ rm – index.html
rm: can’t remove ‘-‘: No such file or directory
dotinstall:~ $ rm – index.html
rm: can’t remove ‘-‘: No such file or directory
rm: can’t remove ‘index.html’: No such file or directory
dotinstall:~ $ ls
dotinstall:~ $