diff --git a/scripts/linux/archlinux/install_dependencies.sh b/scripts/linux/archlinux/install_dependencies.sh
index 93854601d35..a778276b01a 100755
--- a/scripts/linux/archlinux/install_dependencies.sh
+++ b/scripts/linux/archlinux/install_dependencies.sh
@@ -1,17 +1,12 @@
 #!/usr/bin/env bash
 
-if [ $EUID != 0 ]; then
-	echo "this script must be run as root"
-	echo ""
-	echo "usage:"
-	echo "sudo ./install_dependencies.sh"
-	exit $exit_code
-   exit 1
-fi
-
 ROOT=$(cd $(dirname $0); pwd -P)
 
+SUDO_CMD=(sudo
 pacman -S --needed make pkgconf gcc openal glew freeglut freeimage gstreamer gst-plugins-base gst-plugins-good gst-plugins-bad gst-libav opencv libxcursor assimp boost glfw-x11 uriparser curl pugixml rtaudio poco
+)
+echo ${SUDO_CMD[@]}
+${SUDO_CMD[@]}
 
 exit_code=$?
 if [ $exit_code != 0 ]; then
diff --git a/scripts/linux/el6/install_dependencies.sh b/scripts/linux/el6/install_dependencies.sh
index c0c6a9410a4..ed2212b3e08 100755
--- a/scripts/linux/el6/install_dependencies.sh
+++ b/scripts/linux/el6/install_dependencies.sh
@@ -1,18 +1,12 @@
 #!/usr/bin/env bash
 
-## thanks to Claudio for details on packages to install on fedora
-if [ $EUID != 0 ]; then
-	echo "this script must be run using sudo"
-	echo ""
-	echo "usage:"
-	echo "sudo "$0
-	exit $exit_code
-   exit 1
-fi
-
 ROOT=$(cd $(dirname $0); pwd -P)
 
+SUDO_CMD=(sudo
 yum install -y freeglut-devel alsa-lib-devel libXmu-devel libXxf86vm-devel gcc-c++ libraw1394-devel gstreamer1-devel gstreamer1-plugins-base-devel libudev-devel libtheora-devel libvorbis-devel openal-soft-devel libsndfile-devel python-lxml glew-devel flac-devel freeimage-devel cairo-devel pulseaudio-libs-devel openssl-devel libusbx-devel gtk2-devel libXrandr-devel libXi-devel opencv-devel libX11-devel assimp-devel rtaudio-devel boost-devel gtk3-devel glfw-devel uriparser-devel curl-devel pugixml-devel
+)
+echo ${SUDO_CMD[@]}
+${SUDO_CMD[@]}
 
 exit_code=$?
 if [ $exit_code != 0 ]; then
diff --git a/scripts/linux/fedora/install_dependencies.sh b/scripts/linux/fedora/install_dependencies.sh
index 0907bc77286..d2d4eb7e14f 100755
--- a/scripts/linux/fedora/install_dependencies.sh
+++ b/scripts/linux/fedora/install_dependencies.sh
@@ -1,20 +1,14 @@
 #!/usr/bin/env bash
 
-## thanks to Claudio for details on packages to install on fedora
-if [ $EUID != 0 ]; then
-	echo "this script must be run using sudo"
-	echo ""
-	echo "usage:"
-	echo "sudo "$0
-	exit $exit_code
-   exit 1
-fi
-
 ROOT=$(cd $(dirname $0); pwd -P)
 
 # on older Fedora installs you might need to also do:
 # dnf install jack-audio-connection-kit-dbus
+SUDO_CMD=(sudo
 dnf install freeglut-devel alsa-lib-devel libXmu-devel libXxf86vm-devel gcc-c++ libraw1394-devel gstreamer1-devel gstreamer1-plugins-base-devel libudev-devel libtheora-devel libvorbis-devel openal-soft-devel libsndfile-devel python-lxml glew-devel flac-devel freeimage-devel cairo-devel pulseaudio-libs-devel openssl-devel libusbx-devel gtk2-devel libXrandr-devel libXi-devel opencv-devel libX11-devel assimp-devel rtaudio-devel boost-devel gtk3-devel glfw-devel uriparser-devel curl-devel pugixml-devel poco-devel
+)
+echo ${SUDO_CMD[@]}
+${SUDO_CMD[@]}
 
 exit_code=$?
 if [ $exit_code != 0 ]; then