1. Add this to your ~/.vimrc file  (or to /etc/vim/vimrc to enable to the feature system-wide):

if has(“autocmd”)

au BufReadPost * if line(“‘\”") > 1 && line(“‘\”") <= line(“$”) | exe “normal! g`\”" | endif

endif

touch ~/.viminfo

3. Make sure that you own ~/.viminfo  - sometimes it’s owned by root for some reason! If this is the case, make it yours:

chown your_username ~/.viminfo

Note:

Sometimes you’ll find the above snippet already placed in /etc/vim/vimrc  (sometimes commented). If it’s there, uncomment it, and make sure that it reads the same as above.

In Ubuntu 10.04, I uncommented the above snippet in /etc/vim/vimrc. The cursor was placed on the correct line, but always placed in the beginning of the line. This is sub-optimal since the desired behavior is to place it in the correct line and column.

After some Googling, I found that the problem is in this part:

exe “normal! g`\”"

In Ubuntu 10.04, The “g” is followed by a single quote. It should be followed by a backtick

Have fun

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Make Vim Remember The Cursor’s Last Position After Exiting

This feature allows you to subscribe to different kinds of sources to lookup your query in, in addition to the “regular” search.

You can enable it in your Google Preferences. And you can manage your subscription in the Subscribed Links page.

For example, this is how my subscribed links page looks like:

Google Subscribed Links

After subscribing to a source, you’ll notice a special entry (or more) in the results of your search, with info from your subscribed link(s).  This is what I get when I look for “man grep”  (after subscribing to the Unix Man Pages):

Unix Man Pages At Google

I still cannot tell if this will boost your (my) productivity, but it’s a nice feature anyway.

Have fun

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Make Google Even Smarter With Google Subscribed Links

The keyboard has many extra keys, like the function keys, a dedicated zoom in/out keys and more. The problem is that they don’t work on Linux (Ubuntu 10.04 in my case) out of the box, which is a little sad.

Fortunately, I found a simple solution in the internet, and now I can use all the features of the keyboard. The following solution can be used for almost all models of Logitech keyboards and mice.

1. Go to HIDPoint’s download page.

2. Fill in your hardware details. You need to choose a keyboard an a mouse. If you have only one of them, you can choose the other arbitrarily.

3. Choose your OS, optionally fill in you Email address and check the Conditions of Use checkbox. Click download.

4. After you download the file, make it executable:

chmod +x hidpoint1-0.bin

(The actual file name might be slightly different)

5. Run the executble:

sudo ./hidpoint1-0.bin

6.  Follow the instructions in the installer.

7. Reboot your machine.

8. Done.  Now you should see a keyboard icon in the panel’s notification area. Right-Click it, Choose Mouse and Keyboard Settings, and you can customize the keys of your keyboard.

Enjoy

Original article is here.

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Enhance The Experience of Logitech Keyboards and Mice on Linux

Here is how to do it in Ubuntu (Tested on Ubuntu 10.04):

1. Right click the panel, choose “properties”.

2. In “General” tab, uncheck “expand”.

3. Drag the panel from its left or right edge to the other monitor.

4. Right click the panel, choose “properties”, in “General” tab recheck “expand”.

You’re done. Have fun

Found the tip here.

Update:

An easier way, is just to hold “Alt” key, and drag the panel from one monitor to the other. No need to play with the “expand” setting.

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Move Gnome Panel To The Second Monitor – Ubuntu

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[Moved] Regular Expression To Check For Prime Numbers

If you use Firefox, then you can easily solve this problem with these two Firefox extensions. Both serve the same purpose: Making websites easier to read, by removing distractions and allowing you to focus on the content instead. Each one displays the website in a different style, and they have different options. I installed both and use them alternately (and regularly).

The first extension is called “Readability”, and is found here. The other is called “Firefox Reader”, and is located here.

Using is as easy as clicking a button, so I’m sure you’ll be able to manage without my help

Here are some screenshots of Dr Chip’s Website without and with the above extensions:

Dr Chip's Website - Original

Dr Chip's Website With Readability Extension

Dr Chip's Website With Firefox Reader Extension

Have fun

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Firefox Extensions To Make Web Pages More Eye Friendly

Using colormake, colorgcc and colordiff, you can have the output of make, gcc, diff (respectively) coloured.

To install in Ubuntu:

sudo apt-get install colorgcc colormake colordiff

You might want to use aliases to override the normal make/gcc/diff commands.

Original tip from here.

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Colorize Make, GCC and Diff’s Output

You’re editing a buffer in vim, you copy a text (say, code snippet) from another place (say, Firefox), and you paste it inside vim (with middle mouse button / shift+insert). Most chances you won’t like what vim has just did to your text.

The problem is that vim doesn’t “know” that you’re actually pasting a text, and it thinks that you’re typing. So, if you have indentation enabled, it will re-indent your text.

The solution is simple: Whenever you want to paste text from outside vim into vim. Type this in command mode:

:set paste

So now vim knows that you’re going to paste text, and it will not touch it.

To disable the paste mode:

:set nopaste

As easy as that

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Fix Bad Indentation When Pasting Text To Vim

Recently, I started to use tmux, and opened vim, split the windows as usual, and tried to resize them. It didn’t work

I use Ubuntu 10.04 (Don’t remember the exotic name..), and I found that the latest tmux package in their repo is 1.1-1.

Anyway, version 1.1-1 has a bug with the NumPad. The solution is to download the source of tmux 1.2 and build it. It depends on libevent so you’ll need to get it first:

this is how to make it work:

1. sudo apt-get install libevent-dev

2. Get the source tarball of tmux from here.

3. tar xzf tmux-1.2.tar.gz

4. cd tmux-1.2

5. ./configure

6. make

7. sudo make install

Done. Now your life is better. Have fun

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NumPad Problems When Using Vim over Tmux

I happened to write JavaScript this week, and found a great Online JavaScript Lint.  Use with care

Ah, and they also have a downloadable version.

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Online JavaScript Lint