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boot time  comcast  fedora  find repeating  force zoomed  git  gnome  long  lvm snapshots  lvm  ptrace  short git  short  time  workspaces 
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Preview: CUViper

Josh Stone

Ideas, opinions, and inanities

Last Build Date: Sun, 09 Apr 2017 21:20:32 +0000


Add new warnings to GCC with Pythoncuviper

Fri, 24 Jan 2014 05:48:15 +0000

I found myself getting annoyed lately with a certain C++ anti-pattern: functions which take string parameters by value unnecessarily.  The pattern itself isn’t a huge sin, and can have legitimate uses, but often functions would be just as happy with a string const& parameter, so copying it is a waste.  No matter how the optimized […](image)

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SystemTap monitoring ptrace activitycuviper

Mon, 25 Nov 2013 08:27:19 +0000

I’d like to present a real and hopefully interesting example: how I recently used SystemTap to help with a complex ptrace issue. I was trying to track down an issue which involved multiple processes, and one of those was ptrace-attached to the other. In this situation, it would be perfectly fine to attach a debugger […](image)

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Defining your own Git commandscuviper

Sun, 17 Nov 2013 21:30:51 +0000

When you use a command prompt long enough, you’ll find yourself repeating some common command sequences.  If you value your time, you’ll probably start saving shell aliases and even full shell scripts to simplify these things. The same is true with using Git: you’ll probably find yourself repeating some long commands, and wish for an […](image)

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How short can Git abbreviate?cuviper

Mon, 11 Nov 2013 05:26:19 +0000

How short can a Git hash be abbreviated?  A full SHA-1 hash is 160 bits, 40 hex characters, which is a bit long to talk about and retype when you’re not just copy-pasting.  Therefore most people will use just the first few characters to refer to commits, but how safe is this? I know of […](image)

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Boot Time versus LVM Snapshotscuviper

Mon, 21 Jan 2013 19:28:14 +0000

Linux tip: LVM snapshots are a handy feature, but they will destroy your boot time if they diverge very far. I do a lot of development and testing in virtual machines. Sometimes if I want to try something disruptive, I’ll do it in a clone of some base image. Using LVM snapshots makes it easy […](image)

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Monitoring a CyberPower UPS in Fedoracuviper

Sat, 24 Nov 2012 06:45:21 +0000

I recently bought an HP MicroServer N40L for a small home/media server, and I chose to install pre-release Fedora 18 on it.  Fedora is perhaps not the best choice for a server, but I’m quite familiar with it, and I enjoy the First aspect of that distro. Anyway, I’m not doing anything terribly complicated with […](image)

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Procrastinating Timelordcuvipertime-travel

Sat, 02 Jun 2012 01:32:16 +0000

If I could decide now to have done something earlier, then surely I would, for I’d be done with no more effort required.  Maybe I should work on that. And that concludes this Inane Friday Thought Experiment.  Get back to whatever you weren’t doing…(image)

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Force zoomed workspaces in GNOME 3.2cuviper

Fri, 07 Oct 2011 23:58:35 +0000

I jumped the gun and updated to Fedora 16 in beta, which comes with GNOME 3.2 as well.  With that comes a tweaked extension interface, so my prior hack needs modification.  I do notice the new behavior that Florian mentioned last time, where the workspaces display now only hides if just one workspace is in […](image)

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Dnsmasq fixing Comcast and VPNscuviper

Sat, 23 Jul 2011 20:55:12 +0000

Twice in the last few weeks I’ve found uses of dnsmasq to solve DNS headaches: first to get around Comcast issues, and second to juggle both VPN and local hostnames. Round 1 vs. Comcast:  I discovered a while ago that I couldn’t get DNS resolution of a particular domain,, nor its subdomains, though it […](image)

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Force zoomed GNOME 3 workspacescuvipergnome3-workspaces

Mon, 11 Jul 2011 00:18:22 +0000

Almost a month ago now, I upgraded to Fedora 15, which brings with it GNOME 3.  The UI changes are huge — oh, how the webs are screaming.  One of the biggest issues is how very little is customizable.  “How dare you question the brilliant designers!?!  Surely they know what works best for you!”  But […](image)

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