[thirdparty/bash.git] / examples / scripts / scrollbar2

#!/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
Commit	Line	Data
cce855bc JA	1	#!/bin/bash
	2	#
	3	# scrollbar - display scrolling text
	4	#
	5	# usage: scrollbar args
	6	#
	7	# A cute hack originally from Heiner Steven <hs@bintec.de>
	8	#
	9	# converted from ksh syntax to bash v2 syntax by Chet Ramey
	10
	11	WIDTH=${COLUMNS:-80}
	12	WMINUS=$(( $WIDTH - 1 ))
	13
	14	[ $# -lt 1 ] && set -- TESTING
	15
	16	# use the bash-2.02 printf builtin
	17	Text=$(printf "%-${WIDTH}s" "$*")
	18
	19	while :
	20	do
	21	printf "%-.${WIDTH}s\r" "$Text"
	22	LastC=${Text:${WMINUS}:1}
	23	Text="$LastC""${Text%?}"
	24	done