/usr/share/doc/dialog/examples/gauge0-input-fd is in dialog 1.3-20160828-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | #!/bin/sh
# $Id: gauge0-input-fd,v 1.5 2010/01/13 10:20:03 tom Exp $
# modified "gauge0" script to use "--input-fd" option.
. ./setup-vars
exec 3<&0
PCT=10
(
sleep 1
while test $PCT != 110
do
cat <<EOF
XXX
$PCT
The new\n\
message ($PCT percent)
XXX
EOF
PCT=`expr $PCT + 10`
sleep 1
done
) |
$DIALOG --title "GAUGE" --input-fd 3 "$@" --gauge "Hi, this is a gauge widget" 0 0 0
exec 3<&-
|