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#! /bin/sh
set -euf
cd "$workdir"
if test -e nag.hosts; then
echo "nag seems to run already... if not, then delete $workdir/nag.*, please"
exit 23
fi
trap 'rm -f nag.hosts nag.services nag.patch' EXIT INT QUIT
(cd "$hostsdir" && ls | sort) > nag.hosts
(cd "$servicesdir" && ls | sort) > nag.services
diff -u nag.hosts nag.services > nag.patch || :
missing_services=$(sed -n '1d;2d;s/^-\(.*\)/\1/p' nag.patch | tr '\n' ' ')
superfluous_services=$(sed -n '1d;2d;s/^+\(.*\)/\1/p' nag.patch | tr '\n' ' ')
#
# output
#
if test -n "$missing_services"; then
echo missing services: $missing_services
fi
if test -n "$superfluous_services"; then
echo superfluous services: $superfluous_services
fi
if test -z "$missing_services$superfluous_services"; then
echo hosts and services are in sync
fi
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