Howto remove ^M characters using vim

Thanks to this post on Tech recipes I can easily replace DOS/Windows line endings in files:

To remove the ^M characters at the end of all lines in vi, use:

:%s/^V^M//g

The ^v is a CONTROL-V character and ^m is a CONTROL-M. When you type this, it will look like this:

:%s/^M//g

In UNIX, you can escape a control character by preceeding it with a CONTROL-V. The :%s is a basic search and replace command in vi. It tells vi to replace the regular expression between the first and second slashes (^M) with the text between the second and third slashes (nothing in this case). The g at the end directs vi to search and replace globally (all occurrences).

Words of wisdom

Keep this in mind the next time you have to work on somebody else’s code:

So I am a bit lucky in that my father is a very experienced programmer who also gave me the bug. One of the first things he said to me when I started programming for more than just fun or OSS, was that he never judged other programmers code. He would correct it, point out flaws in it, but always with a suggestion of how to do it better. The reason for this is that in the world that we have to live in, of deadlines, PHBs and evil marketing folks who spring new features on a development team right before a release, you never know why someone’s code is the way it is.[...]

source: mprorock on reddit

The iPad signals an end to the ‘hacker era’ of digital history?

The thing that bothers me most about the iPad is this: if I had an iPad rather than a real computer as a kid, I’d never be a programmer today. I’d never have had the ability to run whatever stupid, potentially harmful, hugely educational programs I could download or write. I wouldn’t have been able to fire up ResEdit and edit out the Mac startup sound so I could tinker on the computer at all hours without waking my parents. The iPad may be a boon to traditional eduction, insofar as it allows for multimedia textbooks and such, but in its current form, it’s a detriment to the sort of hacker culture that has propelled the digital economy.

Perhaps the iPad signals an end to the “hacker era” of digital history. Now that consumers and traditional media understand the digital world, maybe there’s proportionally less need for freewheeling technological experimentation and platforms that allow for the same. Maybe the hypothetical mom doesn’t need a real computer. As long as real computers stick around for people who do need them, maybe there’s no harm in that.

Wherever we stand in digital history, the iPad leaves me with the feeling that Apple’s interests and values going forward are deeply divergent from my own. There’s nothing wrong with that; people make consumer decisions every day based on their values. If I don’t like the product that the iPad turns out to be once released, I’m free to simply not buy it. These things have a way of evolving, and I won’t preclude the possibility that Apple eventually addresses concerns about the openness of the device.

For now, though, I remain disturbed. The future of personal computing that the iPad shows us is both seductive and dystopian. It’s not a future I want to bring into my home.

Source: http://al3x.net/2010/01/28/ipad.html

This quote (emphasizes are mine), perfectly reflects my concerns with regards to computing, but also our society in general, and the closed, proprietary direction some companies and people want to take us into. I belief that this direction will turn out to be a dead-end street and I hope we can prevent this from happening before causing it too much harm. This also highlights my arguments in favor of: sharing, openness, free software, accessibility and the right to play, destroy(mostly accidentally, sorry), create, tinker and experiment. In my humble opinion that is the only way to learn, innovate and work towards new, sustainable ways of living on this planet.