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author | cvpcs <root@cvpcs.org> | 2010-06-02 11:02:31 -0500 |
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committer | cvpcs <root@cvpcs.org> | 2010-06-02 11:02:31 -0500 |
commit | 772f20abb0a3a0979c440114bf3a1cff5b3cef03 (patch) | |
tree | 3384b9291d73a12542c526a8557218c7435491b0 /examples/scripts/scrollbar | |
download | external_bash-772f20abb0a3a0979c440114bf3a1cff5b3cef03.zip external_bash-772f20abb0a3a0979c440114bf3a1cff5b3cef03.tar.gz external_bash-772f20abb0a3a0979c440114bf3a1cff5b3cef03.tar.bz2 |
initial import of bash 4.1
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 |