diff --git a/README.md b/README.md
index f52cff0..2cb16e4 100644
--- a/README.md
+++ b/README.md
@@ -391,11 +391,12 @@ Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkMa
 ```
 Usage:
 
-    nmcli-cli-autoconnect-list on|off
+    nmcli-cli-autoconnect-list all
+    nmcli-cli-autoconnect-list yes|no or on|off
 
     Examples:
-        nmcli-cli-autoconnect-list off
-        nmcli-cli-autoconnect-list on
+        nmcli-cli-autoconnect-list all
+        nmcli-cli-autoconnect-list yes
 ```
 
 Run examples:
diff --git a/nmcli-cli-autoconnect-list b/nmcli-cli-autoconnect-list
index 9480299..4652e23 100755
--- a/nmcli-cli-autoconnect-list
+++ b/nmcli-cli-autoconnect-list
@@ -11,11 +11,12 @@ usage() {
     cat << _EOF_
 Usage:
 
-    $0 on|off
+    $0 all
+    $0 yes|no or on|off
 
     Examples:
-        $0 off
-        $0 on
+        $0 all
+        $0 yes
 
 _EOF_
 }
@@ -23,9 +24,11 @@ _EOF_
 autoconnect_list() {
     ON_OFF=${1:-}
 
-    if [[ "${ON_OFF}" = on ]]; then
+    if [[ "${ON_OFF}" == "all" ]]; then
+        ON_OFF="all"
+    elif [[ "${ON_OFF}" == "on" ]] || [[ "${ON_OFF}" == "yes" ]]; then
         ON_OFF="yes"
-    elif [[ "${ON_OFF}" = off ]]; then
+    elif [[ "${ON_OFF}" == "off" ]] || [[ "${ON_OFF}" == "no" ]]; then
         ON_OFF="no"
     else
         echo "Error: option \"${ON_OFF}\" is invalid."
@@ -33,7 +36,15 @@ autoconnect_list() {
     fi
 
     # list
-    grep "^ONBOOT=${ON_OFF}" /etc/sysconfig/network-scripts/ifcfg-* | cut -d':' -f 1 | sed 's|.*/ifcfg-||g'
+    LIST=$(nmcli connection | awk '{ print $1 }' | grep -v "^NAME$")
+    for INTERFACE in ${LIST}
+    do
+        STATUS_LINE=$(nmcli connection show "${INTERFACE}" | grep connection.autoconnect:)
+        STATUS=$(echo "${STATUS_LINE}" | awk '{ print $2 }')
+        if [[ "${ON_OFF}" == "all" ]] || [[ "${STATUS}" == "${ON_OFF}" ]]; then
+            echo "${INTERFACE}"
+        fi
+    done
 }
 
 # Main
diff --git a/nmcli-cli-bond-delete b/nmcli-cli-bond-delete
index 4cdecd7..1a02ffd 100755
--- a/nmcli-cli-bond-delete
+++ b/nmcli-cli-bond-delete
@@ -49,11 +49,11 @@ check() {
 bond_delete() {
     local BOND_IF_NAME=${1:-}
 
-    # Find slave interfaces
-    SLAVE_LIST=$(grep "^MASTER=${BOND_IF_NAME}$" /etc/sysconfig/network-scripts/ifcfg-* | cut -d':' -f 1 | egrep -o "bond-slave.*")
+    # Find lower interfaces
+    INTERFACE_LIST=$(ls "/sys/class/net/${BOND_IF_NAME}/" | grep "^lower_" | sed 's|lower_||')
 
-    # Delete slave interfaces
-    for i in ${SLAVE_LIST}
+    # Delete lower interfaces
+    for i in ${INTERFACE_LIST}
     do
         echo_or_execute nmcli connection delete \"${i}\"
     done
diff --git a/nmcli-cli-bridge-delete b/nmcli-cli-bridge-delete
index 5d31cf7..a35349f 100755
--- a/nmcli-cli-bridge-delete
+++ b/nmcli-cli-bridge-delete
@@ -49,11 +49,11 @@ check() {
 bridge_delete() {
     local BRIDGE_NAME=${1:-}
 
-    # Find slave interfaces
-    SLAVE_LIST=$(grep "^BRIDGE=${BRIDGE_NAME}$" /etc/sysconfig/network-scripts/ifcfg-* | cut -d':' -f 1 | sed 's|.*/ifcfg-||g')
+    # Find lower interface
+    INTERFACE_LIST=$(ls "/sys/class/net/${BRIDGE_NAME}/" | grep "^lower_" | sed 's|lower_||')
 
-    # Delete slave interfaces
-    for i in ${SLAVE_LIST}
+    # Delete lower interface
+    for i in ${INTERFACE_LIST}
     do
         echo_or_execute nmcli connection modify \"${i}\" connection.master \"\" connection.slave-type \"\"
     done
diff --git a/nmcli-cli-slave-list b/nmcli-cli-slave-list
index 828031a..80fc352 100755
--- a/nmcli-cli-slave-list
+++ b/nmcli-cli-slave-list
@@ -23,27 +23,14 @@ _EOF_
 slave_list() {
     local IF_NAME=${1:-}
 
-    # Bond
-    # Find slave interfaces
-    SLAVE_LIST=$(grep "^MASTER=${IF_NAME}$" /etc/sysconfig/network-scripts/ifcfg-* | cut -d':' -f 1 | egrep -o "bond-slave.*")
-    for i in ${SLAVE_LIST}
-    do
-        echo "${i}"
-    done
-
-    # Bridge
-    # Find slave interfaces
-    SLAVE_LIST=$(grep "^BRIDGE=${IF_NAME}$" /etc/sysconfig/network-scripts/ifcfg-* | cut -d':' -f 1 | sed 's|.*/ifcfg-||g')
-    for i in ${SLAVE_LIST}
-    do
-        echo "${i}"
-    done
-
-    # VLAN
-    # Find physical interface
-    IFCFG_FILE="/etc/sysconfig/network-scripts/ifcfg-${IF_NAME}"
-    if [[ -f "${IFCFG_FILE}" ]]; then
-        grep "^PHYSDEV=" "${IFCFG_FILE}" | cut -d'=' -f 2
+    # Find lower interfaces
+    TARGET="/sys/class/net/${IF_NAME}/"
+    if [[ -e "${TARGET}" ]]; then
+        INTERFACE_LIST=$(ls "${TARGET}" | grep "^lower_" | sed 's|lower_||')
+        for i in ${INTERFACE_LIST}
+        do
+            echo "${i}"
+        done
     fi
 }