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//proc/self/root/usr/share/doc/bash-3.2/scripts/scrollbar
#!/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