tuklusan’s gists

tuklusan / PDP-10_TOPS-10_Operating-System_Commands

Last active November 30, 2021 05:35

TOPS-10 Commands Cheatsheet Survival Guide : PDP-10 KS10 O/S. For TOPS-20 see https://supratim-sanyal.blogspot.com/2019/03/visiting-fountain-of-computing-folklore.html

	Login
	=====
	login username password - no password needed on operator console
	A "#" response means its asking for username again (something was wrong in last attempt)

	Logout
	======
	kjob

	Shutdown

tuklusan / hecnet-nodes-list-for-cisco.sh

Created October 29, 2021 00:07

Load HECnet Node List DECnet Node Database into CISCO Router - CISCO IOS used for DECnet over GRE Tunneling: See https://supratim-sanyal.blogspot.com/2017/09/decnet-phase-iv-copy-node-database-from.html

	#!/bin/bash
	#
	# CISCO needs commands of the form
	# DECNET HOST PUFF 1.22
	#
	OUTFILE="nodenames-cisco-ios"
	TMPFILE="/tmp/hecnet-cisco-temp.tmp"

	curl -sNm 60 http://mim.update.uu.se/hecnod \| dos2unix \| egrep "^[0-9]" \| cut -f 1-2 -d " " \| sed -re 's/^/ /' \| sed -re 's/[(]/DECNET HOST /' \| sed -re 's/[)]//' > ${TMPFILE}

tuklusan / sbin-init.d-rclocal

Last active October 15, 2021 13:52

/sbin/init.d/rclocal - execute Linux-style rc.local on HP-UX 11.11 or other rc and init.d based Unix environments that don't support rc.local directly; see https://supratim-sanyal.blogspot.com/2021/10/linux-style-etcrclocal-for-hp-ux-1111.html

	#!/sbin/sh

	# *****
	# /sbin/init.d/rclocal
	# execute Linux-style rc.local on HP-UX 11.11 or other rc and init.d based
	# Unix environments that don't support rc.local directly; see
	# https://supratim-sanyal.blogspot.com/2021/10/linux-style-etcrclocal-for-hp-ux-1111.html
	# *****

	# Allowed exit values:

tuklusan / clear-kernel-memory-cache.sh

Created September 7, 2021 22:54

SANYALnet Labs | Save State of VirtualBox Virtual Machines on APC UPS power loss shutdown by apcupsd Linux Daemon / clear-kernel-memory-cache.sh: see https://supratim-sanyal.blogspot.com/2021/09/save-state-of-virtualbox-virtual.html

	#!/bin/bash
	#
	# /root/clear-kernel-memory-cache.sh
	# See see https://supratim-sanyal.blogspot.com/2021/09/save-state-of-virtualbox-virtual.html
	#
	sync;sync;sync
	echo 3 > /proc/sys/vm/drop_caches
	sync;sync;sync

tuklusan / onbattery

Created September 7, 2021 22:49

SANYALnet Labs | Save State of VirtualBox Virtual Machines on APC UPS power loss shutdown by apcupsd Linux Daemon / onbattery event handler script: see https://supratim-sanyal.blogspot.com/2021/09/save-state-of-virtualbox-virtual.html

	#!/bin/bash
	#
	# /etc/apcupsd/onbattery
	#
	# This shell script if placed in /etc/apcupsd
	# will be called by /etc/apcupsd/apccontrol when the UPS
	# goes on batteries.
	# We send an email message to root to notify him.
	#

tuklusan / gist:fce4244d4c2f19e5a68b8c0e150d6492

Created September 7, 2021 22:44

SANYALnet Labs | Save State of VirtualBox Virtual Machines on APC UPS power loss shutdown by apcupsd Linux Daemon /etc/apcupsd : see https://supratim-sanyal.blogspot.com/2021/09/save-state-of-virtualbox-virtual.html

	# ls -l
	total 60
	lrwxrwxrwx 1 root root 27 Aug 17 14:09 annoyme -> do-nothing-event-handler.sh
	-rwxr-xr-x 1 root root 4007 Mar 22 2020 apccontrol
	-rw-r--r-- 1 root root 13295 Aug 17 12:43 apcupsd.conf
	-rw-r--r-- 1 root root 13238 Aug 16 20:22 apcupsd.conf.orig
	lrwxrwxrwx 1 root root 27 Aug 17 14:11 battattach -> do-nothing-event-handler.sh
	lrwxrwxrwx 1 root root 27 Aug 17 14:11 battdetach -> do-nothing-event-handler.sh
	lrwxrwxrwx 1 root root 27 Aug 17 14:10 changeme -> do-nothing-event-handler.sh
	lrwxrwxrwx 1 root root 27 Aug 17 14:05 commfailure -> do-nothing-event-handler.sh

tuklusan / gist:4f2b26419ac7bc00000738312510a0c1

Created September 7, 2021 22:40

SANYALnet Labs | Save State of VirtualBox Virtual Machines on APC UPS power loss shutdown by apcupsd Linux Daemon / apcupsd apccontrol events: see https://supratim-sanyal.blogspot.com/2021/09/save-state-of-virtualbox-virtual.html

	2021-08-17 11:13:34 +0000 Power failure.
	2021-08-17 11:13:40 +0000 Running on UPS batteries.
	2021-08-17 11:13:43 +0000 Reached remaining time percentage limit on batteries.
	2021-08-17 11:13:43 +0000 Initiating system shutdown!

tuklusan / save-vms-on-ups-power.sh

Last active July 4, 2022 23:25

SANYALnet Labs | Save State of VirtualBox Virtual Machines on APC UPS power loss shutdown by apcupsd Linux Daemon / save-vms-on-ups-power.sh: see https://supratim-sanyal.blogspot.com/2021/09/save-state-of-virtualbox-virtual.html

	#!/bin/bash
	#
	# /root/save-vms-on-ups-power.sh
	#
	# SEE https://supratim-sanyal.blogspot.com/2021/09/save-state-of-virtualbox-virtual.html
	#
	# SANYALnet Labs \| Supratim Sanyal's Hobbyist Lab
	#
	# Based on https://ubuntuforums.org/archive/index.php/t-1890848.html
	#

tuklusan / do-nothing-event-handler.sh

Created September 7, 2021 22:25

SANYALnet Labs | Save State of VirtualBox Virtual Machines on APC UPS power loss shutdown by apcupsd Linux Daemon / do-nothing-event-handler.sh: see https://supratim-sanyal.blogspot.com/2021/09/save-state-of-virtualbox-virtual.html

	#!/bin/bash
	#
	# do-nothing-event-handler.sh
	#
	# return 99 to abort automatic shutdown by apccontrol
	#
	echo -e "$0 $(date): doing nothing\a"
	wall "$0 $(date): doing nothing"
	logger "$0 $(date): doing nothing"
	exit 99

tuklusan / apcaccess.status

Created September 7, 2021 22:21

SANYALnet Labs | Save State of VirtualBox Virtual Machines on APC UPS power loss shutdown by apcupsd Linux Daemon / apcaccess status: see https://supratim-sanyal.blogspot.com/2021/09/save-state-of-virtualbox-virtual.html

Supratim Sanyal tuklusan