#!/bin/sh
# SPDX-License-Identifier: MPL-2.0
# Read-only snapshot. No daemon, no network listener, no persistent files.
set -eu
test -r /proc/stat || { echo 'Only Linux /proc is supported' >&2; exit 2; }
printf '__CPU__\n'
head -n 1 /proc/stat
printf '__MEM__\n'
awk '/^(MemTotal|MemAvailable):/ {print $1,$2}' /proc/meminfo
printf '__DISK__\n'
df -Pk / | tail -n 1
printf '__LOAD__\n'
cat /proc/loadavg
printf '__UPTIME__\n'
cat /proc/uptime
printf '__NET__\n'
cat /proc/net/dev
printf '__OS__\n'
if test -r /etc/os-release; then sed -n 's/^PRETTY_NAME=//p' /etc/os-release | tr -d '"'; else uname -s; fi