to stderr, and debug method

src/sh/helper.sh

@@ -1,10 +1,15 @@
 ERR="\033[38;5;196m"
 INFO="\033[38;5;75m"
+DBG=$ERR
 OFF="\033[m"
 err() {
-  echo "${ERR}ERROR:${OFF} ${1:-}"
+  echo "${ERR}ERROR:${OFF} ${1:-}" >/dev/stderr
 }
 
 info() {
-  echo "${INFO}Info:${OFF} ${1:-}"
+  echo "${INFO}Info:${OFF} ${1:-}" >/dev/stderr
+}
+
+debug() {
+  echo "${DBG}DEBUG${OFF} ${INFO}$(date)${OFF}: $*" >/dev/stderr
 }