26 lines
546 B
Text
26 lines
546 B
Text
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#!/bin/bash
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#
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# scrollbar - display scrolling text
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#
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# usage: scrollbar args
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#
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# A cute hack originally from Heiner Steven <hs@bintec.de>
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#
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# converted from ksh syntax to bash v2 syntax by Chet Ramey
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WIDTH=${COLUMNS:-80}
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[ $# -lt 1 ] && set -- TESTING
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# Posix.2 compatible printf command or bash loadable builtin
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# in examples/loadables/printf
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Text=$(printf "%-${WIDTH}s" "$*")
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Text=$(echo "$Text" | tr ' ' '_')
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while :
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do
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printf "%-.${WIDTH}s\r" "$Text"
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LastC=$(expr "$Text" : '.*\(.\)$')
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Text=$(printf "%-.${WIDTH}s" "$LastC$Text")
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done
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