Vim-Fu

Using csshX in OSX Lion

jroberts — Mon, 16 Apr 2012 19:05:00 +0000

Opening 10 windows at a time to issue the same command to 10 machines is a valuable time saver, and csshX is a great tool to do just that. I considered it a indespensible tool until I upgraded my machines to Lion. Lion has a feature where it remembers what windows you had [...]

Patching Chef to support dry-run mode by Darren Dao

ddao — Mon, 20 Jun 2011 23:37:39 +0000

How we patch Chef to have dryrun [...]

Resetting root password in MySQL

jroberts — Tue, 24 May 2011 17:41:49 +0000

This is taken directly from MySQL home page:

Log on to your system as the Unix user that the mysqld server runs as (for example, mysql). Locate the .pid file that contains the server’s process ID. The exact location and name of this file depend on your distribution, host name, and configuration. Common locations are /var/lib/mysql/, /var/run/mysqld/, and /usr/local/mysql/data/. Generally, [...]

OpenSSL-Fu

jroberts — Wed, 20 Oct 2010 03:50:49 +0000

I needed to do a conversion of an ssl-cert today and I found a very thorough post all about OpenSSl and all of the really usefult things it can [...]

the ball command

jroberts — Tue, 31 Aug 2010 04:35:31 +0000

Quite often I’ll open up several different file in the vim buffer to be edited.

~$ vim `grep -l v1.2r5 *.pl`

Commands like that can save you a lot of time searching through files looking for a single value or word.

How many files did that load into Vim’s buffer? Check with:

:ls

Let’s say grep found three files and [...]

Starting Over in VIM using e!

jroberts — Thu, 29 Jul 2010 02:57:10 +0000

I haven’t posted a trick in a while, so here’s a good one to know.

Ever start working on a file in command mode and then hit the caps key without realizing it. Wham! All sorts of un-expected things can happen before you know it. What do you do then? You could use q! to exit [...]

MySQL tuning script

jroberts — Wed, 28 Jul 2010 04:07:05 +0000

This is really useful script called tuning-primer.sh by Matt Montgomery. [...]

Using Screen to connect to a serial console

jroberts — Sat, 24 Apr 2010 20:10:50 +0000

Not much to write about here. You can use screen as a replacement for minicom. Who knew!?!?! Screen will never stop amazing me with all the cool stuff that it can do.

screen /dev/ttyUSB0

To set the baud rate to 57,600:

screen /dev/ttyUSB0 57600

To enable CTS/RTS handshake:

screen /dev/ttyUSB0 57600,ctsrts

^a,k to end the session. ^a,i to check the status of [...]

Blacklisted Email in Amazon’s EC2 Cloud

jroberts — Wed, 21 Apr 2010 18:38:13 +0000

One of the major problems in having your systems in Amazon’s EC2 cloud is that the ip you get assigned is almost surely blacklisted with every major email blacklist before you’ve sent a single piece of email (check for this using mxtoolbox.com). I learned this the hard way when I started hearing the our registration and [...]

Cisco POE and Polycom phones

jroberts — Mon, 19 Apr 2010 05:41:29 +0000

They just continuously flapped when ever they were powered by the 3550. Adding this line fixed the issue [...]