X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=examples%2Fscripts%2Fscrollbar;h=388bea8e137c8429c841fa3c90307a337a739233;hb=cce855bc5b117cb7ae70064131120687bc69fac0;hp=c177179e778cc9335f9c292d7e73b002842eec0b;hpb=e8ce775db824de329b81293b4e5d8fbd65624528;p=platform%2Fupstream%2Fbash.git

diff --git a/examples/scripts/scrollbar b/examples/scripts/scrollbar
index c177179..388bea8 100755
--- a/examples/scripts/scrollbar
+++ b/examples/scripts/scrollbar
@@ -9,17 +9,17 @@
 # converted from ksh syntax to bash v2 syntax by Chet Ramey
 
 WIDTH=${COLUMNS:-80}
+WMINUS=$(( $WIDTH - 1 ))
 
 [ $# -lt 1 ] && set -- TESTING
 
-# Posix.2 compatible printf command or bash loadable builtin
-# in examples/loadables/printf
+# use the bash-2.02 printf builtin
 Text=$(printf "%-${WIDTH}s" "$*")
-Text=$(echo "$Text" | tr ' ' '_')
+Text=${Text// /_}
 
 while :
 do
 	printf "%-.${WIDTH}s\r" "$Text"
-	LastC=$(expr "$Text" : '.*\(.\)$')
-	Text=$(printf "%-.${WIDTH}s" "$LastC$Text")
+	LastC=${Text:${WMINUS}:1}
+	Text="$LastC""${Text%?}"
 done