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Installing Git Manpages on Snow Leopard

sam keen — Tue, 13 Apr 2010 15:35:55 +0000

When Using Git do you get this frustration:

$ git help pull
No manual entry for git-pull

If so, there is an easy fix

First, note the git version you are using

$ git --version
git version 1.6.4.2

Then download the appropriate tarball from kernel.org

curl -O http://www.kernel.org/pub/software/scm/git/git-manpages-{YOUR VERSION}.tar.bz2

Then determine your manpath for /usr/local (here it is /usr/local/share/man, yours may be different)

$ cat /etc/manpaths
/usr/share/man
/usr/local/share/man

Lastly, untar the files into the man directory

sudo tar xjv -C /usr/local/share/man -f git-manpages-1.6.4.2.tar.bz2

Now you should get manpages when you issue something like git help merge

ipad: My impressions

sam keen — Fri, 29 Jan 2010 15:39:17 +0000

Sexy little (well medium i guess) device. As a software developer though I cannot see it replacing my laptop (currently a msi u123). I don’t see writing code on a ipad.
Also, it would not be replacing my phone. I guess we will be able to use skype (or skype-like services) on the 3G models. But still, the form factor of the iPad does not make for a convenient phone.

I do see the iPad as the dream machine for bloggers (though I’m surprised there is no camera) and makes an excellent “couch computer”. I believe in many people’s minds, it competes in the iPod touch market.

Do we see Ubuntu or Android ever being ported to this device? That could make things interesting.

vnstat : excellent networking tool

sam keen — Mon, 25 Jan 2010 16:51:32 +0000

I recently found myself considering moving one of our servers to the Rackspace Cloud. I needed to get an estimate of the cost for bandwidth usage.
I remembered I had installed vnstat on that server when it was deployed. This made the bandwidth calculation completely simple:

Just have vnstat give me the bandwidth sliced by Month:

$ vnstat -m

 eth0  /  monthly

   month         rx      |      tx      |   total
-------------------------+--------------+--------------------------------------
  Aug '09       7.00 GB  |     8.48 GB  |    15.48 GB   %::
  Sep '09      14.98 GB  |    15.75 GB  |    30.72 GB   %%%::::
  Oct '09      31.70 GB  |    14.79 GB  |    46.50 GB   %%%%%%%%:::
  Nov '09      45.46 GB  |    14.64 GB  |    60.10 GB   %%%%%%%%%%%:::
  Dec '09      73.71 GB  |    15.40 GB  |    89.11 GB   %%%%%%%%%%%%%%%%%%::::
  Jan '10      66.25 GB  |    16.89 GB  |    83.14 GB   %%%%%%%%%%%%%%%%::::
-------------------------+--------------+--------------------------------------
 estimated     94.97 GB  |    24.21 GB  |   119.18 GB

The install of vnstat on Ubuntu can be done with apt-get:

sudo apt-get install vnstat

Remember, once installed to initiate you vnstat DB. Just execute vnstat and it will tell you how. vnstat -u -i eth0 in my case

Then check the man page for the command to see all the different ways you will be able to slice and dice your network data