Remove cat-subshells (cosmetic)

The use of cat in a subshell is distractive.
This makes the code more beautiful.

4 files changed, 7 insertions, 7 deletions

diff --git a/scripts/netcfg-menu b/scripts/netcfg-menu
index f7c9019..a62838a 100755
--- a/scripts/netcfg-menu
+++ b/scripts/netcfg-menu
@@ -53,7 +53,7 @@ case $ret in
         (( ret == 0 )) && echo "$DEFAULT" > "$STATE_DIR/menu"
         ;;
     0)  # User selection
-        profile_up "$(cat "$ANSWER")"
+        profile_up "$(< "$ANSWER")"
         ret=$?
         (( ret == 0 )) && mv "$ANSWER" "$STATE_DIR/menu"
         ;;
diff --git a/scripts/netcfg-wpa_actiond b/scripts/netcfg-wpa_actiond
index c8a2867..f276ab2 100755
--- a/scripts/netcfg-wpa_actiond
+++ b/scripts/netcfg-wpa_actiond
@@ -20,7 +20,7 @@ case $1 in
         [[ -f "$IFACE_DIR/$interface" ]] && source "$IFACE_DIR/$interface"
         netcfg -i "$interface"
         stop_wpa "$interface"
-        kill $(cat "/run/wpa_actiond_${2}.pid")
+        kill $(< "/run/wpa_actiond_${2}.pid")
         # only try to disable software rfkill switches (FS#25514)
         if [[ "$RFKILL" == "soft" ]]; then
             set_rf_state "$interface" disabled $RFKILL_NAME || exit $?
diff --git a/src/connections/ethernet b/src/connections/ethernet
index 8665816..3e4a992 100644
--- a/src/connections/ethernet
+++ b/src/connections/ethernet
@@ -230,8 +230,8 @@ ethernet_down() {
                 report_debug ethernet_down dhclient -q -r "$INTERFACE"
                 dhclient -q -x "$INTERFACE" &>/dev/null
                 #dhclient -q -r "$INTERFACE" &>/dev/null
-                report_debug ethernet_down /bin/kill $(cat /run/dhclient-$INTERFACE.pid)
-                /bin/kill $(cat /run/dhclient-$INTERFACE.pid) &>/dev/null
+                report_debug ethernet_down /bin/kill $(< /run/dhclient-$INTERFACE.pid)
+                /bin/kill $(< /run/dhclient-$INTERFACE.pid) &>/dev/null
             fi
         else
             if [[ -f "/run/dhcpcd-$INTERFACE.pid" ]]; then
@@ -244,8 +244,8 @@ ethernet_down() {
         if [[ -f "/run/dhclient6-$INTERFACE.pid" ]]; then
             report_debug ethernet_down dhclient -6 -q -x "$INTERFACE"
             dhclient -6 -q -x "$INTERFACE" &>/dev/null
-            report_debug ethernet_down /bin/kill $(cat /run/dhclient6-$INTERFACE.pid)
-            /bin/kill $(cat /run/dhclient6-$INTERFACE.pid) &>/dev/null
+            report_debug ethernet_down /bin/kill $(< /run/dhclient6-$INTERFACE.pid)
+            /bin/kill $(< /run/dhclient6-$INTERFACE.pid) &>/dev/null
         fi
     fi
 
diff --git a/src/rfkill b/src/rfkill
index 4fbc34d..12e1832 100644
--- a/src/rfkill
+++ b/src/rfkill
@@ -21,7 +21,7 @@ get_rf_path() {
 
     if [[ -n "$RFKILL_NAME" ]]; then
         for path in /sys/class/rfkill/*; do
-            if [[ "$(cat "$path/name")" == "$RFKILL_NAME" ]]; then
+            if [[ "$(< "$path/name")" == "$RFKILL_NAME" ]]; then
                 echo "$path"
                 return 0
             fi