diff --git a/document/linux/config/bash/module/archive.sh b/document/linux/config/bash/module/archive.sh
index a3cc981..f408690 100644
--- a/document/linux/config/bash/module/archive.sh
+++ b/document/linux/config/bash/module/archive.sh
@@ -149,3 +149,12 @@ export -f archive
 export -f archive_fast
 export -f archive_check
 export -f unarchive
+
+# autocompletes.
+_archive_list()
+{
+  autocomplete "$(ls *_*.tar.* 2> /dev/null)"
+}
+
+complete -F _archive_list archive_check
+complete -F _archive_list unarchive