Enable autostart - Revision history

Jca: /* rename_host.bash listing */

2026-04-18T13:56:31Z

rename_host.bash listing

← Older revision		Revision as of 15:56, 18 April 2026
Line 175:		Line 175:

	This script is also starting off_by_mqtt:		This script is also starting off_by_mqtt:

			#!/bin/bash
			# to be called at boot.
			# Replaces hostname with name in <robotname>.
			# Get old and new hostname
			hn=`hostname`
			# echo "renaming" $hn "again" >/home/local/aaa.txt
			# read new name in the file robotname
			f="/home/local/svn/log/robotname"
			cd /home/local/svn/log
			date >> rename_info.txt
			if [ -f $f ];
			then # file exist
			# get name in file to variable nn
			nn=$(tr -d '\r\n' < "$f")
			# and length of this name
			echo "found name " $nn
			yy=$(expr length $nn)
			echo "length of" $nn "in" $f "is" $yy
			if [ $yy -gt 2 ];
			then # length is longer than 2 characters
			if [ $hn != $nn ];
			then # replace old hostname with new
			#echo new name $nn, so rename host from $hn
			echo New name is $nn - so rename host from $hn
			echo New name is $nn - so rename host from $hn >> rename_info.txt
			hostnamectl set-hostname $nn
			# sed -i "s/$hn/$nn/g" /etc/hostname
			# seems like /etc/hosts is not updated, but /etc/hostname is
			sed -i "s/$hn/$nn/g" /etc/hosts
			else
			# just add reboot date to file
			echo Same hostname $hn - all is fine.
			echo Same hostname $hn - all is fine. >> rename_info.txt
			fi
			fi
			else
			echo "File >" $f "< not found." >> rename_info.txt
			fi
			# listen for MQTT power off
			sleep 10
			/home/local/svn/robobot/off_by_mqtt/build/off_by_mqtt 2>>off_by_mqtt2.txt >>off_by_mqtt1.txt &
			# test if we are at DTU
			sleep 10
			ssid="DTUdevice"
			echo Test access to SSID "$ssid" >> rename_info.txt
			aa=$(nmcli dev wifi \| grep "$ssid")
			aal=$(expr length "$aa")
			# echo "length of $aa is $aal"
			if [ "$aal" -gt 20 ];
			then
			echo SSID $ssid is available
			# trying to ping default router using 'ip r' to find router IP
			ping -q -t 1 -c 1 `ip r \| grep default \| cut -d ' ' -f 3` > /dev/null
			if [ "$?" -ne 0 ];
			then
			echo We are not connected, trying to connect to "$ssid" >> rename_info.txt
			nmcli device wifi connect "$ssid" password robots4ever ifname wlan0
			else
			echo We $"$HOSTNAME"$ are connected to "$ssid" >> rename_info.txt
			fi
			else
			echo no $ssid SSID found >> rename_info.txt
			fi
			#iwconfig 2>/dev/null >> rename_info.txt
			exit 0

Jca: /* host_rename.sh listing */

2026-04-18T13:53:42Z

host_rename.sh listing

← Older revision		Revision as of 15:53, 18 April 2026
Line 171:		Line 171:
	#		#
	exit $RETVAL		exit $RETVAL

			=== rename_host.bash listing ===

			This script is also starting off_by_mqtt:

Jca: /* Make rename and off run as root */

2026-02-01T14:42:57Z

Make rename and off run as root

← Older revision		Revision as of 16:42, 1 February 2026
Line 120:		Line 120:
	This process listens to an off command on MQTT, then shutdown.		This process listens to an off command on MQTT, then shutdown.

	=== Make rename and ~~off~~ run as root ===		=== Make rename and shutdown run as root ===

	Runlevel 2 and 3 are the time during boot when all services are started.		Runlevel 2 and 3 are the time during boot when all services are started.

Jca: /* Mission start */

2026-02-01T14:40:04Z

Mission start

← Older revision		Revision as of 16:40, 1 February 2026
Line 22:		Line 22:
	This file should be updated if the mission app is elsewhere or has a different name.		This file should be updated if the mission app is elsewhere or has a different name.

	It will create or append a file named "log_out.txt" in the Python directory ~~and print text~~ to the console.		It will create or append a file named "log_out.txt" in the Python directory. Anything that would have been printed to the console is directed to this file. The ''2>>log_err.txt'' drects any error to this file (usually empty).

	==Autostart==		==Autostart==

Jca: /* Mission start */

2026-02-01T14:37:25Z

Mission start

← Older revision		Revision as of 16:37, 1 February 2026
Line 15:		Line 15:
	# echo -e "\nStarting mission\n"		# echo -e "\nStarting mission\n"
	cd /home/local/svn/robobot/mqtt_python		cd /home/local/svn/robobot/mqtt_python
	/usr/bin/python3 mqtt-client.py >log_out.txt 2>log_err.txt &		#/usr/bin/python3 mqtt-client.py >log_out.txt 2>log_err.txt &
			/usr/bin/python3 mqtt-client.py >>log_out.txt 2>>log_err.txt &
	# echo "mission ended"		# echo "mission ended"
	exit 0		exit 0

	This file should be ~~changed~~ if the mission app is elsewhere or has ~~another~~ name.		This file should be updated if the mission app is elsewhere or has a different name.

	It will create a file "log_out.txt" in the Python directory~~, with~~ text ~~printed~~ to the console.		It will create or append a file named "log_out.txt" in the Python directory and print text to the console.

	==Autostart==		==Autostart==

Jca: /* Autostart */

2025-07-02T11:47:32Z

Autostart

← Older revision		Revision as of 13:47, 2 July 2025
Line 64:		Line 64:
	date >> /home/local/svn/log/rebootinfo.txt		date >> /home/local/svn/log/rebootinfo.txt
	exit 0		exit 0

			The file need to be executable:

			chmod +x on_reboot.bash

	Use crontab to run this script at reboot as the user "local".		Use crontab to run this script at reboot as the user "local".

Jca: /* Hostname update */

2025-02-16T19:15:55Z

Hostname update

← Older revision		Revision as of 21:15, 16 February 2025
Line 108:		Line 108:

	The script needs to be run as root; therefore, it is set to run as part of the boot process.		The script needs to be run as root; therefore, it is set to run as part of the boot process.

			=== Shutdown process ===

			The shutdown process ''off_by_mqtt'' also need to run as root - to be able to call ''sudo shutdown now''.

			This process listens to an off command on MQTT, then shutdown.

			=== Make rename and off run as root ===

			Runlevel 2 and 3 are the time during boot when all services are started.
			Another script has been added to rename and start the power-off process.

	Copy a service script (host_rename.sh) to /etc/init.d		Copy a service script (host_rename.sh) to /etc/init.d
Line 116:		Line 127:
	/home/local/svn/robobot/setup/rename_host.bash		/home/local/svn/robobot/setup/rename_host.bash

	The ~~full~~ script is further down		The entire script is further down.


	Make the file executable and add it to run-level 2 (before networking is started)		Make the file executable and add it to run-level 2 (before networking is started)

Jca: /* Hostname update */

2025-02-16T19:10:10Z

Hostname update

← Older revision		Revision as of 21:10, 16 February 2025
Line 102:		Line 102:
	echo "File >" $f "< not found."		echo "File >" $f "< not found."
	fi		fi
			# listen for MQTT power off
			sleep 10
			/home/local/svn/robobot/off_by_mqtt/build/off_by_mqtt 2>off_by_mqtt2.txt >off_by_mqtt1.txt &
			exit 0

	The script needs to be run as root; therefore, it is set to run as part of the boot process.		The script needs to be run as root; therefore, it is set to run as part of the boot process.

Jca: /* Mission start */

2025-02-01T20:05:11Z

Mission start

← Older revision		Revision as of 22:05, 1 February 2025
Line 21:		Line 21:
	This file should be changed if the mission app is elsewhere or has another name.		This file should be changed if the mission app is elsewhere or has another name.

	It will create a file "log_out.txt", with text printed, to the console ~~in the Python directory~~.		It will create a file "log_out.txt" in the Python directory, with text printed to the console.

	==Autostart==		==Autostart==

Jca: /* Mission start */

2025-02-01T20:04:17Z

Mission start

← Older revision		Revision as of 22:04, 1 February 2025
Line 21:		Line 21:
	This file should be changed if the mission app is elsewhere or has another name.		This file should be changed if the mission app is elsewhere or has another name.

	It will create a file "log_out.txt" with text printed to the console in the Python directory.		It will create a file "log_out.txt", with text printed, to the console in the Python directory.

	==Autostart==		==Autostart==