Blog by Daniel Hauck. Sysadmin, Developer, Blogger.

TAG: tmux

Get Your Owncloud / Caldav Calendar Into Tmux

In my previous post I promised you that I will show you how to get you owncloud calendar into tmux status bar. Since owncloud uses the caldav protocol, this post should fit for most caldav servers.

To accomplish this task I will use the python library caldav, which latest version is 0.4.0. You can easily install it via pip:

pip install caldav

If pip is not available, install it with your package manager, i.e. apt:

apt-get install python-pip python-dev

Ok, you got everything setup. Let’s start.

First you need to grab the url from your owncloud web interface. Therefore login to owncloud click on the dropdown at the top left and select calendar.

On the left side you can see your calendar(or multiple ones), which default name is personal. Next to it there is a hyperlink symbol(as you see in the screenshot).


Selection_001Below there appears a link to the caldav api of owncloud. Just copy it for later.

Now we got every information we need. Let’s have a look at the python script I have prepared:

If you got any suggestions how to make the short script better, please use the comments 😉

The script prints out your next appointment in your calendar, so we can directly call it in tmux, no sed or else is required.
So save the script, for example to ~/bin/ or /usr/local/bin/ and make it executable:

chmod +x ~/bin/

And call it from you ~/.tmux.conf:

set -g status-right '📅 #(~/bin/'

Voila! Your next appointment appears in tmux 🙂

Screenshot from 2015-07-07 08:51:40

If you got any questions, suggestions or wishes, please use the comments here on the blog. Otherwise they will be scattered at G+, Twitter and reddit.

You want to learn more about an effective workflow with tmux? Sign up for my book, of course you will get a discount with the newsletter 😉

Get your Google Calendar into TMUX

EDIT: If you need to have your caldav/owncloud calendar, have a look HERE.

The most time I work in the terminal in fullscreen mode for not getting disturbed. Therefore I like it to have my calendar(at least the next appointment) visible in my command line environment. I discovered a great tool for the command line called ‘gcalcli’. You can find it on github:

Install it via pip:

pip install gcalcli

After the installation you need to setup your account on the first connection. You can do this for example by requesting your agenda:

gcalcli agenda

A browser window will popup which is requesting your confirmation to manage your calendar:
Screenshot from 2015-06-29 21-29-10

After confirming you are able to query your calendar with the command line – GREAT! 😉

As wouldn’t that be cool enough, let’s put the calendar into tmux.

First we need to build the build the output we a few pipes and stuff:

gcalcli --nostarted --calendar "" agenda --nocolor | cut -d " " -f 4- | head -2 | tail -1 | sed "s/^ *//g" | sed "s/    / /g" | cut -c1-19

Let’s cut off the date, redundant spaces, empty lines and all the useless stuff and finally get only the next event in the calendar.
Also I only want the first 20 chars of the name, so let’s cut this ;).

Be sure to replace GOOGLE_USERNAME with your accountname(everything in front of

Now you have only the last element, so let’s get a nice calendar symbol and put it in our .tmux.conf.
Therefore your need to open your .tmux.conf modify the option ‘status-right’:
set -g status-right '📅 #(gcalcli --nostarted --calendar "" agenda --nocolor | cut -d " " -f 4- | head -2 | tail -1 | sed "s/^ *//g" | sed "s/    / /g" | cut -c1-19)'

So you are almost there, just save your file and reload your tmux config. So type your prefix(standard CTRL+B) and
:source-file ~/.tmux.conf

After a few seconds in the right bottom you should see your next event from the google calendar:
Screenshot from 2015-06-29 22-07-49
Nice! 🙂

In the next days I will write how to achieve this with your owncloud account.

Have fun and thanks for reading! 🙂


P.S.: Currently I am writing a bout about an effective workflow using tmux so don’t forget to opt in to the newsletter to get the latest updates on the work in progress.

Start TMUX on Login to a new Bash

I use tmux for a while now.

It is a Terminal Mutliplexer, so you can open multiple windows and split your windows in lot of panes.

For example I use it for development to have my vim in one pane, my mongo connection in another, and a python shell in the next one.

Sometimes I forgot to open a session at startup and later wondered why the shortcuts won’t work…

I tinkered around and just wrote tmux to the end of my .bashrc, not a good idea. It would try open tmux in every new pane or window.

At the end of the day you would have thousands of tmux session nested 😉 Trust me you don’t want this.

So you need so check if you are either in a ‘normal’ session like xterm or similar or if you already in a tmux session.

Just append this single line to your .bashrc:

Here I check if the TERM environment variable is NOT set to screen, otherwise I fire up a new tmux session.

Click the link to learn more about the TERM variable

There are no more results.