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| author | An-Cheng Huang <ancheng@vyatta.com> | 2007-11-12 13:06:02 -0800 |
|---|---|---|
| committer | An-Cheng Huang <ancheng@vyatta.com> | 2007-11-12 13:06:02 -0800 |
| commit | b7fc9e0f6d6105ba2203f219743d4b269415e84b (patch) | |
| tree | ef6586dfc62798c2b17487b443864699aca55f31 /examples/scripts/scrollbar | |
| download | vyatta-bash-b7fc9e0f6d6105ba2203f219743d4b269415e84b.tar.gz vyatta-bash-b7fc9e0f6d6105ba2203f219743d4b269415e84b.zip | |
initial import from bash_3.1dfsg.orig.tar.gz
Diffstat (limited to 'examples/scripts/scrollbar')
| -rwxr-xr-x | examples/scripts/scrollbar | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/examples/scripts/scrollbar b/examples/scripts/scrollbar new file mode 100755 index 0000000..388bea8 --- /dev/null +++ b/examples/scripts/scrollbar @@ -0,0 +1,25 @@ +#!/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 "%-${WIDTH}s" "$*") +Text=${Text// /_} + +while : +do + printf "%-.${WIDTH}s\r" "$Text" + LastC=${Text:${WMINUS}:1} + Text="$LastC""${Text%?}" +done |