fetchmail to get the mails from your imap account

2014-03-11 1 min read Raspberry Pi

Now, that you have set the RPi to send emails, lets do the next best thing. Setup fetchmail so that we can setup a cron job to run and get us the emails on Raspberry Pi. What can we do with these emails, lots 🙂 (I hope you already have a Raspberry Pi, if not then head over to element14.)

For now, first install fetchmail:

sudo apt-get install fetchmail

and if you are one of the guys who wants easy configuration then :

Raspberry Pi automate certain tasks – script example

2014-03-10 2 min read Raspberry Pi

Now, if you have followed these :

fetchmail

ssmtp

Then you already have a working system for sending and receiving mail. Now, you can set the mda in the fetmailrc to a script which can do few things for you. The script below will get a page and mail it to you, if you have the subject as “get” and send “wake on LAN” to desired PC if you have subject as “wol”. Cool 🙂

get the contents of whole site like some wiki or wikia

2014-02-24 1 min read Learning Uncategorized

For wikis and wikia, generally if you are trying to get some url mirror, then websucker.py is an excellent option. This script is in the python sources so, to get this tool,

yumdownloader --source python

Install the rpm downloaded in current directory and then go to ~/rpmbuild/SOUURCES. You should find a Python-*.tar.xz file here, just extract with

tar xvf Python*.tar.xz

and there you go, you should find the tool in Tools/webchecker/websucker.py.

get all the urls in html file (local or on server).

2014-02-17 1 min read Bash Fedora

To use this, you will need the lynx tool, so install that first.

sudo yum install lynx

Now, to get list of all the URLs in local html file or some URL, just execute this:

lynx -dump -listonly

nautilis fork ( File manager ) with tree view in sidebar.

2014-02-09 1 min read Fedora GNOME

Was searching for this for sometime now, finally found it.

sudo yum install nemo
sudo yum list nemo*

First just install nemo. Configure nemo not to interfere with default desktop and also make it default handler. So, here are the settings that would do it.

gconftool-2 --set  /desktop/gnome/applications/component_viewer/exec --type 'string' 'nemo "%s"'
gconftool-2 --set  /desktop/gnome/url-handlers/trash/command --type 'string' 'nemo "%s"'
gsettings set org.nemo.desktop show-desktop-icons false

Now, if you need more functionality in file manager then check the list of nemo packages from the output of second command of yum. It has plugins like file preview and so on. Install and enjoy.

bash debug – log all executed commands

2014-02-03 1 min read Bash

Whenever I am writing a script in perl or bash, I always wish that there
was some way to have all the commands logged or output to screen. I know
there is “set -x” option to have debugging enabled, but sometimes that
seems to be too much information and I dont really need all that. So, here
is something I found recently for bash to log all the executed commands.

inotify -watch for file to change

2014-01-28 1 min read Learning Linux

Here is a simple command for you. It uses inotify tools. So first you need to install :

sudo yum install inotify-tools

and then you can try something like this:

while true; 
do 
inotifywait -r -e modify --exclude=".swp" . && make; 
done

Here, once the file changes, we are running make, but you can do anything you want.

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