From 384148c019415e0a19917c6ff19d03a9158dfc62 Mon Sep 17 00:00:00 2001
From: Manuel Thalmann <m@nuth.ch>
Date: Sat, 25 Mar 2023 13:40:33 +0100
Subject: [PATCH] Simplify math expressions

---
 Dockerfile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index ddb7789..41a23d4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -100,7 +100,7 @@ RUN \
                     fileName="screens/install-try$try-$x.png"; \
                     import -window root "$fileName"; \
                     tiv -w 10000 -h 10000 "$fileName"; \
-                    x=$(bash -c "declare -i x=$x+1; echo "'$x'); \
+                    x="$(expr "$x" + 1)"; \
                     echo $x; \
                     sleep 1; \
                 done; \
@@ -151,7 +151,7 @@ RUN \
     do \
         echo "Restarting Installation"; \
         # Increase counter
-        y=$(bash -c "declare -i y=$y+1; echo "'$y'); \
+        y="$(expr "$y" + 1)"; \
     done && \
     kill -9 "$displayPID" > /dev/null 2>&1; \
     # Delete unfinished installations