diff --git a/mainline/alpine-perl/10-listen-on-ipv6-by-default.sh b/mainline/alpine-perl/10-listen-on-ipv6-by-default.sh
index f9cf4dad3d57cb28169280092918a2cbf63c558b..9636f4c6eaa46cfd1b125429a4cec8069b5611ac 100755
--- a/mainline/alpine-perl/10-listen-on-ipv6-by-default.sh
+++ b/mainline/alpine-perl/10-listen-on-ipv6-by-default.sh
@@ -18,7 +18,7 @@ if [ ! -f "/$DEFAULT_CONF_FILE" ]; then
 fi
 
 # check if the file can be modified, e.g. not on a r/o filesystem
-touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" >1&2; exit 0; }
+touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" 1>&2; exit 0; }
 
 # check if the file is already modified, e.g. on a container restart
 grep -q "listen  \[::]\:80;" /$DEFAULT_CONF_FILE && { echo >&3 "$ME: error: IPv6 listen already enabled"; exit 0; }
diff --git a/mainline/alpine/10-listen-on-ipv6-by-default.sh b/mainline/alpine/10-listen-on-ipv6-by-default.sh
index f9cf4dad3d57cb28169280092918a2cbf63c558b..9636f4c6eaa46cfd1b125429a4cec8069b5611ac 100755
--- a/mainline/alpine/10-listen-on-ipv6-by-default.sh
+++ b/mainline/alpine/10-listen-on-ipv6-by-default.sh
@@ -18,7 +18,7 @@ if [ ! -f "/$DEFAULT_CONF_FILE" ]; then
 fi
 
 # check if the file can be modified, e.g. not on a r/o filesystem
-touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" >1&2; exit 0; }
+touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" 1>&2; exit 0; }
 
 # check if the file is already modified, e.g. on a container restart
 grep -q "listen  \[::]\:80;" /$DEFAULT_CONF_FILE && { echo >&3 "$ME: error: IPv6 listen already enabled"; exit 0; }
diff --git a/mainline/buster-perl/10-listen-on-ipv6-by-default.sh b/mainline/buster-perl/10-listen-on-ipv6-by-default.sh
index f9cf4dad3d57cb28169280092918a2cbf63c558b..9636f4c6eaa46cfd1b125429a4cec8069b5611ac 100755
--- a/mainline/buster-perl/10-listen-on-ipv6-by-default.sh
+++ b/mainline/buster-perl/10-listen-on-ipv6-by-default.sh
@@ -18,7 +18,7 @@ if [ ! -f "/$DEFAULT_CONF_FILE" ]; then
 fi
 
 # check if the file can be modified, e.g. not on a r/o filesystem
-touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" >1&2; exit 0; }
+touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" 1>&2; exit 0; }
 
 # check if the file is already modified, e.g. on a container restart
 grep -q "listen  \[::]\:80;" /$DEFAULT_CONF_FILE && { echo >&3 "$ME: error: IPv6 listen already enabled"; exit 0; }
diff --git a/mainline/buster/10-listen-on-ipv6-by-default.sh b/mainline/buster/10-listen-on-ipv6-by-default.sh
index f9cf4dad3d57cb28169280092918a2cbf63c558b..9636f4c6eaa46cfd1b125429a4cec8069b5611ac 100755
--- a/mainline/buster/10-listen-on-ipv6-by-default.sh
+++ b/mainline/buster/10-listen-on-ipv6-by-default.sh
@@ -18,7 +18,7 @@ if [ ! -f "/$DEFAULT_CONF_FILE" ]; then
 fi
 
 # check if the file can be modified, e.g. not on a r/o filesystem
-touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" >1&2; exit 0; }
+touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" 1>&2; exit 0; }
 
 # check if the file is already modified, e.g. on a container restart
 grep -q "listen  \[::]\:80;" /$DEFAULT_CONF_FILE && { echo >&3 "$ME: error: IPv6 listen already enabled"; exit 0; }
diff --git a/stable/alpine-perl/10-listen-on-ipv6-by-default.sh b/stable/alpine-perl/10-listen-on-ipv6-by-default.sh
index f9cf4dad3d57cb28169280092918a2cbf63c558b..9636f4c6eaa46cfd1b125429a4cec8069b5611ac 100755
--- a/stable/alpine-perl/10-listen-on-ipv6-by-default.sh
+++ b/stable/alpine-perl/10-listen-on-ipv6-by-default.sh
@@ -18,7 +18,7 @@ if [ ! -f "/$DEFAULT_CONF_FILE" ]; then
 fi
 
 # check if the file can be modified, e.g. not on a r/o filesystem
-touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" >1&2; exit 0; }
+touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" 1>&2; exit 0; }
 
 # check if the file is already modified, e.g. on a container restart
 grep -q "listen  \[::]\:80;" /$DEFAULT_CONF_FILE && { echo >&3 "$ME: error: IPv6 listen already enabled"; exit 0; }
diff --git a/stable/alpine/10-listen-on-ipv6-by-default.sh b/stable/alpine/10-listen-on-ipv6-by-default.sh
index f9cf4dad3d57cb28169280092918a2cbf63c558b..9636f4c6eaa46cfd1b125429a4cec8069b5611ac 100755
--- a/stable/alpine/10-listen-on-ipv6-by-default.sh
+++ b/stable/alpine/10-listen-on-ipv6-by-default.sh
@@ -18,7 +18,7 @@ if [ ! -f "/$DEFAULT_CONF_FILE" ]; then
 fi
 
 # check if the file can be modified, e.g. not on a r/o filesystem
-touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" >1&2; exit 0; }
+touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" 1>&2; exit 0; }
 
 # check if the file is already modified, e.g. on a container restart
 grep -q "listen  \[::]\:80;" /$DEFAULT_CONF_FILE && { echo >&3 "$ME: error: IPv6 listen already enabled"; exit 0; }
diff --git a/stable/buster-perl/10-listen-on-ipv6-by-default.sh b/stable/buster-perl/10-listen-on-ipv6-by-default.sh
index f9cf4dad3d57cb28169280092918a2cbf63c558b..9636f4c6eaa46cfd1b125429a4cec8069b5611ac 100755
--- a/stable/buster-perl/10-listen-on-ipv6-by-default.sh
+++ b/stable/buster-perl/10-listen-on-ipv6-by-default.sh
@@ -18,7 +18,7 @@ if [ ! -f "/$DEFAULT_CONF_FILE" ]; then
 fi
 
 # check if the file can be modified, e.g. not on a r/o filesystem
-touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" >1&2; exit 0; }
+touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" 1>&2; exit 0; }
 
 # check if the file is already modified, e.g. on a container restart
 grep -q "listen  \[::]\:80;" /$DEFAULT_CONF_FILE && { echo >&3 "$ME: error: IPv6 listen already enabled"; exit 0; }
diff --git a/stable/buster/10-listen-on-ipv6-by-default.sh b/stable/buster/10-listen-on-ipv6-by-default.sh
index f9cf4dad3d57cb28169280092918a2cbf63c558b..9636f4c6eaa46cfd1b125429a4cec8069b5611ac 100755
--- a/stable/buster/10-listen-on-ipv6-by-default.sh
+++ b/stable/buster/10-listen-on-ipv6-by-default.sh
@@ -18,7 +18,7 @@ if [ ! -f "/$DEFAULT_CONF_FILE" ]; then
 fi
 
 # check if the file can be modified, e.g. not on a r/o filesystem
-touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" >1&2; exit 0; }
+touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo "$ME: error: can not modify /$DEFAULT_CONF_FILE (read-only file system?)" 1>&2; exit 0; }
 
 # check if the file is already modified, e.g. on a container restart
 grep -q "listen  \[::]\:80;" /$DEFAULT_CONF_FILE && { echo >&3 "$ME: error: IPv6 listen already enabled"; exit 0; }