/usr/share/checkbox/scripts/cycle_vts is in checkbox 0.13.7.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #!/bin/bash
# NB: This script must be run with root privileges in order to have any effect!
CURRENT_VT=`/bin/fgconsole`
if [ "$CURRENT_VT" == "" ]
then
echo "Unable to determine current virtual terminal." >&2
exit 1
fi
if [ "$CURRENT_VT" -ne "1" ]
then
chvt 1
else
chvt 2
fi
sleep 2
chvt "$CURRENT_VT"
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