get-edid-as-sha256sums

#!/bin/sh
#
# Get sha256sums of the connected monitor's EDID info.

exec grep -l '^connected' /sys/class/drm/*/status |
    while IFS= read -r REPLY; do
        sum=$(exec hexdump-raw-edid "${REPLY%/*}/edid" | exec sha256sum)
        echo "${sum%  *}"
    done

# vim: set ft=sh :