diff --git a/.zshrc2 b/.zshrc2
index 84e42bb..7ebc191 100644
--- a/.zshrc2
+++ b/.zshrc2
@@ -92,6 +92,9 @@ case $(bash "$DOTFILES/tools/common.sh" get_os_type) in
     macos  ) alias l='ls -lAGh -D "%y-%m-%d %H:%M"' ;;
     *      ) alias l='ls -lAGh --time-style="+%y-%m-%d %H:%M"' ;;
 esac
+if [[ -x $(command -v trash) ]]; then
+    alias "rm"="echo use the full path i.e. '/bin/rm'; consider using trash"
+fi
 sibd() { ssh -p 12022 root@$1${1:+.}ibd.ink }
 sob() { ssh -p 24022 root@$1${1:+.}ob.ac.cn }
 snasp() { ssh -o ProxyJump="ssh@nasp.ob.ac.cn:36022" dictxiong@$1 }