ico-sxiv

diff --git a/install.sh b/install.sh
@@ -11,14 +11,9 @@
 # Copyright (C) 2020 Pablo Emilio Escobar Gaviria.
 # Free use of this software is granted under the terms of the GPL-3.0 License.
 
-puts ()
-{
-    printf "\033[1m\033[38;5;%sm[%s]\033[m %s\n\n" "$3" "$1" "$2"
-}
-
 error ()
 {
-    puts ERROR "$1" 9
+    printf "\033[1m\033[38;5;9m[ERROR]\033[m %s\n\n" "$1"
     exit 1
 }
 
@@ -27,6 +22,11 @@ dependencyError ()
     error "$(printf "The command '%s' could not be found.\nPlease make sure it is included in the \$PATH enviroment variable or follow the installation instructions on %s." "$1" "$2")"
 }
 
+if [ "$(id -u)" -ne "0" ]
+then
+    error "This script requires administrator-privileges"
+fi
+
 if ! [ -x "$(command -v mktemp)" ]
 then
     dependencyError "mktemp" "https://www.gnu.org/software/coreutils/"