diff --git a/logging.bash b/logging.bash
index 62a5d9b..466afb0 100644
--- a/logging.bash
+++ b/logging.bash
@@ -1,5 +1,8 @@
+define_usage() { read -d '' usage; }
 errcho() { (>&2 echo $@); }
+ercat() { (>&2 cat "$@"); }
 errcat() { (>&2 cat <<<"$@"); }
 dedcat() { (>&2 cat <<<"$@"); exit 1; }
+xcat() { (>&2 cat "$@"); exit 0; }
 excat() { (>&2 cat <<<"$@"); exit 0; }
 die() { errcho $@; exit 1; }