tools/scroll.sh: do not use expr

5 years ago · 23b80425a3
parent 2219bc1e06
commit 23b80425a3
1 changed files with 1 additions and 1 deletions
--- a/tools/scroll.sh
+++ b/tools/scroll.sh
@ -4,5 +4,5 @@ I=0
 while [ 1 ]; do
    sleep 1
    echo $I
-    I=`expr $I + 1`
+    I=$(($I + 1))
 done