The command top is a very useful tool to capture information about process running on Linux. Many times this information may need to be captured to a file. This can be done with the following command:
top -b -n1 > /tmp/top.txt
This will run top once write the output to a file and exit.
The command top can also be run so that it will give multiple reports. To run top 5 times and wait 5 seconds between each output the command would be:
top -b -n5 -d5 > /tmp/top.txt
This is the second in our series co-publishing with Fedora Interviews.
In Fedora, the supported method for upgrading from one release to the next is by downloading the media and rebooting from the media and using Anaconda. Why was this the case, and what’s wrong with a yum upgrade?
Seth Vidal: Anaconda has the advantage of running outside of the system it is upgrading. This means it can do certain tricks in the event of big changes. The lvm->lvm2 migration, for example. Yum can’t do this. Changing the partition or fs type on a running partition is a bad idea :)
» Read more
Meet Bela Ban, a developer who began the JGroups and JBoss Cache projects. He’s now the technical lead of the JBoss clustering team, continuing the work he began as an college instructor.
Ban talks about the background of both projects, as well as upcoming developments, including increased throughput, persistence, security, remote accessibility, and other features. He also discusses the business needs that can be solved with these tools–just a small sample from his talk at JBoss World.
Contributing author: Melanie Chernoff
Over the past year, the OOXML debate launched a worldwide discussion about what an open standard should be, how it impacts the technology industry, and why open standards are important.
Last week, OOXML–an XML format designed for Microsoft’s office suite–was approved as a standard by the International Organization for Standardization (ISO). In past articles1 2, we have discussed problems with voting irregularities, the use of a fast-track process without adequate industry review, proprietary Microsoft technologies used without specification, and other problems. Now that OOXML has been approved despite these objections, let’s take a look at the standardization process and the impact that OOXML’s approval will have in the office suite space. » Read more
This is accomplished through the combination of the SIGNAL SHUTDOWN command from z/VM and /etc/inittab file in Linux. First, logon to z/VM as MAINT, then run the following command:
==> CP SET SIGNAL SHUTDOWN 180
This instructs z/VM to wait 3 minutes (180 seconds) for each guest to complete shutdown. Increase this value if there are services running that require longer to stop.
This interview is the first of a series we’ll be co-publishing with Fedora Interviews. In this one, Jeremy Katz talks about improvements to Fedora Live CDs. » Read more
Paul Frields, Fedora Project Leader, asks:
Fedora is being used in a hundred thousand interesting places out in the real world.
* At NASA to do analysis that makes future space exploration safer.
* In studies to improve development for children with Down’s Syndrome (trisomy 21).
* At Creative Commons, to promote open content discovery, creation, and remixing.
* Powering distribution of food to the needy in Mexico.
We want to hear a story about how YOU use Fedora to do something interesting. Enriching. Educational. Enhancing. At work or in your community. How did Fedora help you achieve something special? Just reply in a comment to [his] blog.
Editor’s note 4/9/08: Please comment on the original post instead of here for the sake of consolidation.
