diff --git a/README.md b/README.md
index 02aa97b..3774ba3 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,7 @@ The `time-file` must have this format:
 * **NONUMBER**: if equals to 1, do not write song number
 * **SEPARATOR**: (default: ' - '), write song number, with this separator
   example with SEPARATOR='_': song names will be 01_song.opus 02_song.opus…
+* **HEADERS**: if equals to 1, print environment parameters (verbosity, simulation, etc.)
 * **VERBOSITY** [0-3] (default: 1)\
   verbosity 0: no output except errors from ffmpeg\
   verbosity 1: simple indications on the current track being extracted\
diff --git a/get-tracks.sh b/get-tracks.sh
index e3781fe..5ff9a30 100755
--- a/get-tracks.sh
+++ b/get-tracks.sh
@@ -173,6 +173,7 @@ usage(){
 	echo "envvar: FORMAT [mp3,ogg,opus,…], see the ffmpeg documentation"
 	echo "envvar: SEPARATOR [separator] (default: ' - '), write song number, with this separator"
 	echo "        example with SEPARATOR='_': song names will be 01_song.opus 02_song.opus…"
+	echo "envvar: HEADERS, if equals to 1, print environment parameters (verbosity, simulation, etc.)"
 	echo "envvar: VERBOSITY [0-3] (default: 1)"
 	echo "        verbosity 0: no output except errors from ffmpeg"
 	echo "        verbosity 1: simple indications on the current track being extracted"
@@ -187,38 +188,44 @@ fi
 command=$1
 shift
 
+header(){
+	if [ "$HEADERS" = "1" ]; then
+		echo $*
+	fi
+}
+
 if [ "$FORMAT" = "" ]; then
-	echo "default FORMAT: opus"
+	header "default FORMAT: opus"
 	FORMAT="opus"
 else
-	echo "FORMAT: $FORMAT"
+	header "FORMAT: $FORMAT"
 fi
 
 if [ "$VERBOSITY" = "" ]; then
-	echo "default VERBOSITY: 1"
+	header "default VERBOSITY: 1"
 	VERBOSITY=1
 else
-	echo "VERBOSITY level: $VERBOSITY"
+	header "VERBOSITY level: $VERBOSITY"
 fi
 
 if [ "$NONUMBER" = "" ]; then
-	echo "default NONUMBER: disabled"
+	header "default NONUMBER: disabled"
 	NONUMBER=0
 
 	# Assume that there should be a separator.
 	if [ "$SEPARATOR" = "" ]; then
-		echo "default SEPARATOR: ' - '"
+		header "default SEPARATOR: ' - '"
 		SEPARATOR=" - "
 	else
-		echo "SEPARATOR: '$SEPARATOR'"
+		header "SEPARATOR: '$SEPARATOR'"
 	fi
 else
-	echo "NONUMBER: won't prefix tracks"
+	header "NONUMBER: won't prefix tracks"
 	SEPARATOR=""
 fi
 
 if [ "$SIMULATION" != "" ]; then
-	echo "SIMULATION envvar is set: this is a simulation."
+	header "SIMULATION envvar is set: this is a simulation."
 fi
 
 </dev/null xxd -p >/dev/null 2>/dev/null