diff options
Diffstat (limited to 'examples/scripts/scrollbar2')
-rwxr-xr-x | examples/scripts/scrollbar2 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/examples/scripts/scrollbar2 b/examples/scripts/scrollbar2 new file mode 100755 index 0000000..0e53634 --- /dev/null +++ b/examples/scripts/scrollbar2 @@ -0,0 +1,24 @@ +#!/bin/bash +# +# scrollbar - display scrolling text +# +# usage: scrollbar args +# +# A cute hack originally from Heiner Steven <hs@bintec.de> +# +# converted from ksh syntax to bash v2 syntax by Chet Ramey + +WIDTH=${COLUMNS:-80} +WMINUS=$(( $WIDTH - 1 )) + +[ $# -lt 1 ] && set -- TESTING + +# use the bash-2.02 printf builtin +Text=$(printf "%-${WIDTH}s" "$*") + +while : +do + printf "%-.${WIDTH}s\r" "$Text" + LastC=${Text:${WMINUS}:1} + Text="$LastC""${Text%?}" +done |