/usr/bin/xrotate is in xdiagnose 3.8.4.
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 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134  | #!/bin/bash
# Script originated from https://bbs.archlinux.org/viewtopic.php?id=107167 comment #4
# Hacked on for Nexus 7 ~ Bryce Harrington
rotate_display() {
    output=$1
    rotation=$2
    #xrandr --output ${output} --rotate right
    xrandr -o $(( rotation * 3 ))
    if [ $? -ne 0 ]; then
	echo "xrandr fail" >> /tmp/xrotate.log
        return 1
    fi
    return 0
}
matrix_rotate() {
    device=$1
    rotation=$2
    case ${rotation} in
	0) MATRIX="0 -1 1  1 0 0   0 0 1"   ;;  # 90 deg to right
	1) MATRIX="1 0 0   0 1 0   0 0 1"   ;;  # normal
	2) MATRIX="0 1 0   1 0 -1  0 0 1"   ;;  # 90 deg to left
    esac
    xinput set-prop $device "Coordinate Transformation Matrix" $MATRIX
    if [ $? -ne 0 ]; then
	echo "xinput matrix transformation fail" >> /tmp/xrotate.log
        return 1
    fi
    return 0
}
rotate_device() {
    device=$1
    rotation=$2
    xinput set-prop $device "Evdev Axes Swap" $rotation
    if [ $? -ne 0 ]; then
	echo "xinput axis swap fail" >> /tmp/xrotate.log
        return 1
    fi
    xinput set-prop $device "Evdev Axis Inversion" $rotation, $rotation
    if [ $? -ne 0 ]; then
	echo "xinput axis inversion fail" >> /tmp/xrotate.log
        return 1
    fi
    return 0
}
calibrate_device() {
    device=$1
    rotation=$2
    rangex=( 0 9640 )
    rangey=( 0 7220 )
    case ${rotation} in
	0) cal=( ${rangey[@]} ${rangex[@]} ) ;;
	1) cal=( ${rangex[@]} ${rangey[@]} ) ;;
    esac
    xinput set-prop $device "Evdev Axis Calibration" ${cal[@]}
    if [ $? -ne 0 ]; then
	echo "xinput calibration fail" >> /tmp/xrotate.log
        return 1
    fi
    return 0
}
rotate() {
    rotation=$1
    devices=( "elan-touchscreen" )
    rotate_display "LVDS-1" ${rotation}
    for device in ${devices[@]}; do
	#rotate_device ${device} ${rotation} \
	#    || return 1
	matrix_rotate ${device} ${rotation} \
	     || return 1
        #calibrate_device ${device} ${rotation}
    done
    return 0
}
# If no args given, default to 'auto'
CMD=${1:-auto}
case "${CMD}" in
    dump)
        echo
        echo "### xinput list ###"
        xinput list
        echo
        echo "### Xorg.0.log ###"
        cat /var/log/Xorg.0.log
        echo
        echo "### dmesg ###"
        dmesg | egrep -i "(tegra|elan|usb|input)"
        echo
        echo "### props ###"
        xinput list-props "elan-touchscreen"
	;;
    portrait | normal)	rotate 0 || exit 1   ;;
    landscape | right)  rotate 1 || exit 1   ;;
    auto)
        # Auto-detect rotation to use
        xrandrout="$(xrandr)"
        case $xrandrout in
            *connected\ 1280x800* ) rotation=0 ;;
            *connected\ 800x1280* ) rotation=1 ;;
        esac
        rotate ${rotation} || exit 1
	;;
    *)
        echo "Usage:  xrotate [portrait|landscape|auto|dump]"
	;;
esac
exit 0
 |