Technology Insights

How to Get Email Notifications from Subversion on Commits

I recently was asked by some guys on my team if it was possible to get email notifications for every commit to svn with a description of what was removed, what was committed and a diff if possible. Now it seems like this would be easy and maybe even built into subversion so I checked into that first. There was a ruby script which can be made as a hook-script which is supposed to send email notifications. I spent quite some time trying to get it to work and didn’t have much luck so I decided to research some other options. I ran across a python program which was written specifically for this task called svnmailer.

Below I will detail the steps needed to get svnmailer working on your system:

Technology Insights

How To Switch Between Git Branches From The Linux CLI

If you are using Git for version control then it is likely at some point you will have a project with multiple branches of code. The benefit of this is allowing various developers to work on different projects while providing an easier way to merge the code when the developers tasks are completed. One developer may be working strictly on big fixes that could need to be checked in daily while another developer may be working on a project that may take months to complete and git provides a system to merge these code branches together. Below is a quick reference for switching between Git code branches.

Technology Insights

Error(s) executing /usr/bin/nagios -v /usr/share/nagios/monarch/workspace/ nagios.cfg Permission Denied

Earlier in the week when moving Nagios from one server to another I ran into a bunch of random issues with Monarch which is the Nagios configuration file manager I use. After I got everything installed and thought that I was past any errors I ran a Pre Flight Test on the Nagios configuration files which returned an error. In the article below I describe in more detail the error that displayed, how I went about troubleshooting the error, and what I finally did to resolve the error.

Technology Insights

git: Show Details of a Previous Commit, git log Details

Below is information regarding the use of the git log command. There are numerous git log options described below including showing a single revision, a certain number of revisions, revisions since a certain date, and showing more details about revisions. The git log command can be useful to see specifically what has been checked in to the repository just for a revision history or to verify that the proper changes have been made.

Show Previous Commits:


  1. git log

This will show a listing of previous revisions for the current branch.