24 lines
452 B
Bash
Executable file
24 lines
452 B
Bash
Executable file
#!/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=${COLUMNS:-80}
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WMINUS=$(( $WIDTH - 1 ))
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[ $# -lt 1 ] && set -- TESTING
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# use the bash-2.02 printf builtin
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Text=$(printf "%-${WIDTH}s" "$*")
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while :
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do
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printf "%-.${WIDTH}s\r" "$Text"
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LastC=${Text:${WMINUS}:1}
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Text="$LastC""${Text%?}"
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done
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