I always forget the ps command arguments to see the length of time that a Linux process has been running so I am writing it out here in hopes of remembering it in the future without having to read the ps manpage. I also will know I can easily search this later to find the solution. Below I describe what command to use from a Linux terminal window to display the length of time a specific process or set of processes has been running.
Earlier today I was upgrading some packages on a CentOS Linux server and was curious what applications were actually installed with the coreutils RPM package. I knew that this was one of the main RPM packages that had a ton of various applications installed with it however I was not sure specifically which ones. Below are some examples of how to use RPM to find out exactly what is installed with a specific RPM package.
I ran into an issue earlier where adding a sub project to an already existing Redmine project produced an error and after a little bit of troubleshooting determined that upgrading Redmine would resolve the issue. During the upgrade process I ran into some other issues including a specific migration error using rake that is noted below. The upgrade process involved upgrading Redmine 0.8.3 to Redmine 0.9.3.
Alex and I got some new laptops the other day. I have been a Linux user primarily for many years but the laptop came with Windows 7 so I decided to give it a spin. I must say on the whole I have to say it is a very fast and usable operating system. There is just one thing I was missing and that was Linux shell commands in the terminal. Nothing fancy but I am so used to using ls,rm and grep that I almost went back to Linux. But then Alex mentioned something about adding Cygwin to his laptop which I am of course familiar with but he also mumbled about adding it to the path. I had never even considered this, so I did it and wow is it cool. All the commands I love are in my terminal now. Plus if you use console.exe you can have tabs and every thing.