Added scripts to turn off/on services on linux machine to decrease no… (#2739)

performance/scripts/linux_services.list

@@ -0,0 +1,12 @@
+cups.service
+cups.socket
+cups.path
+cups-browsed
+avahi-daemon.socket
+avahi-daemon.service
+whoopsie.service
+upower.service
+snapd.socket
+snapd.service 
+bluetooth.target
+bluetooth.service

performance/scripts/services.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+# Command services.sh -mode [on|off] -gui file_with_servers_list.
+MODE=ON
+CHANGE_GUI_MODE=0
+if [ "$1" = "-mode" ]; then
+    shift
+    if [ "$1" = "off" ]; then
+        MODE=OFF
+    fi
+    shift
+fi
+if [ "$1" = "-gui" ]; then
+    CHANGE_GUI_MODE=1
+    shift
+fi
+
+INPUT_FILE=$1
+if [ ! -f $INPUT_FILE ]; then
+    echo "File $INPUT_FILE doesn't exist."
+    exit 1
+fi
+
+if [ $CHANGE_GUI_MODE = 1 ]; then
+    # Turn on/off GUI mode.
+    if [ "$MODE" = ON ]; then
+        systemctl enable graphical.target --force
+        systemctl set-default graphical.target
+    else
+        systemctl enable multi-user.target --force
+        systemctl set-default multi-user.target
+    fi
+fi
+
+while IFS=$'\r' read -r line || [[ -n "$line" ]]; do
+    if [ "$MODE" = ON ]; then
+        systemctl enable $line
+        systemctl start $line
+    else
+        systemctl disable $line
+        systemctl stop $line
+    fi
+done < "$INPUT_FILE"