Calibre on Linux - Updating app

[alittlehelppleas]

I have Calibre v1.20 on Linux - Ubuntu 12.04. When a new version is released do I have to do anything to install the new version? In other words, do I have to remove the current version in order to install the new release? I (so far) have not found a user option to manually check for updates for Calbre. Where is this or is there an option to manually check for updates?

[Adoby]

No, you don't have to do anything, except running the script to download and install the new version.

I put the script that is used to update in a file, so I just have to click the file to start a update.

#!/bin/bash
sudo -S python -c "import sys; py3 = sys.version_info[0] > 2; u = __import__('urllib.request' if py3 else 'urllib', fromlist=1); exec(u.urlopen('http://status.calibre-ebook.com/linux_installer').read()); main(install_dir='/opt')"

You will automaticallly be notified about new versions when you use calibre. I have not ever had any need to update automatically. There is no problem connected to not updating and skipping a few versions. But if you experience problems, then it is a good time to update. The problems may have been fixed in a later version.

At the bottom left of calibre you can see what version you are running, and if there is a new version available.

Usually there is a new version every week on thursday or friday. But usually only minor things change, so you don't have to update every week.

[theducks]

You could also subscribe to the Calibre Changelog RSS feed from your browser Where did I find THAT link? I did it recently and it does WORK

[PeterT]

Originally Posted by theducks

You could also subscribe to the Calibre Changelog RSS feed from your browser Where did I find THAT link? I did it recently and it does WORK

Bottom of the calibre web-site pages FEED OF NEW RELEASES

[eschwartz]

And you could always put it into a cron job to update automatically. There was a thread a while back that came up with am increasingly elaborate script for that, killing running instances, servers, etc. checking the current version vs. the posted update, then running the update code.

[theducks]

Originally Posted by PeterT

Bottom of the calibre web-site pages FEED OF NEW RELEASES

That is where.

[alittlehelppleas]

Thanks for the responses. I am still getting familiar with Ubuntu. I intend to ditch Windows altogether if possible. So far, all goes well with the transition for what (the stuff and things) I want to have and do in Ubuntu that I was doing in Windows. Again ... thanks.

I'm gone.

[samhy]

Since Calibre is updated pretty much every Friday, that day when I start Calibre I look at the right bottom side. There's a link to get the update. From this web page I copy and paste the command in a terminal, enter the sudo password and select /opt as the place to write the software. A couple of minutes later I can run an updated Calibre Don't forget to close Calibre before the update and you should be good to go.

[gbm]

All I do is open a Terminal, then press the up arrow until I reach the last time updated calibre, then press enter, type in my sudo password, good to go,

bernie

Originally Posted by samhy

Since Calibre is updated pretty much every Friday, that day when I start Calibre I look at the right bottom side. There's a link to get the update. From this web page I copy and paste the command in a terminal, enter the sudo password and select /opt as the place to write the software. A couple of minutes later I can run an updated Calibre Don't forget to close Calibre before the update and you should be good to go.

[eschwartz]

and I have a script called "calibre-upgrade" that looks like this:

#!/bin/bash

calibre-debug -c "import urllib as u; from calibre.constants import numeric_version; raise SystemExit(int(numeric_version  < (tuple(map(int, u.urlopen('http://calibre-ebook.com/downloads/latest_version').read().split('.'))))))"

UP_TO_DATE=$?

if [ $UP_TO_DATE = 0 ]; then
	echo "Calibre is up-to-date"
else
	calibre --shutdown-running-calibre
	killall calibre-server
	sudo python -c "import sys; py3 = sys.version_info[0] > 2; u = __import__('urllib.request' if py3 else 'urllib', fromlist=1); exec(u.urlopen('http://status.calibre-ebook.com/linux_installer').read()); main()"
fi

Which corresponds to a line in my crontab that looks like this:

0 6 * * 5 /home/schwartze/bin/calibre-upgrade > /dev/null 2>&1

I then go my merry way in sublime confidence that calibre will always be up-to-date.