The following quick command can be used to kill one or more processes found using the combination of ps and grep.
ps -ef | grep FooBar | awk '{print $2}' | xargs kill -9
Things that amuse me...
The following quick command can be used to kill one or more processes found using the combination of ps and grep.
ps -ef | grep FooBar | awk '{print $2}' | xargs kill -9
Posted by marcM at Wednesday, April 18, 2012
Received the following error from a Ruby application when it called require 'json'.
irb(main):002:0> require 'rubygems'
=> true
irb(main):004:0> require 'json'
LoadError: no such file to load -- json
from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
from /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
from (irb):4
from :0
sudo apt-get install libjson-ruby
irb(main):001:0> require 'json'
=> true
Posted by marcM at Saturday, April 14, 2012
Tags: json, linux, programming, ruby, ubuntu
Posted by marcM at Tuesday, February 21, 2012
Tags: linux find xargs
A few tips, tricks, gotcha's, and other findings from working with Django for Python.
Posted by marcM at Friday, July 29, 2011
These cool tools are awesome for tweeking your Linux workflow. Admin multiple machines at the same time, add GUI dialogs to your bash scripts, and more.
In Short: shFlags, xvkbd, xclip, Zenity, cssh, tree
Zenity Date Select Dialog |
Recently, after moving to a different timezone, I noticed that my automated backup scripts were failing. Why? They were running based on the old timezone (during a disallowed time).
To update to the new timezone, specify the correct timezone in the directory path below:
cd /etcIssue the date command to see the new date/time/zone.
sudo ln -sf /usr/share/zoneinfo/US/[yourzone] localtime
Posted by marcM at Thursday, March 17, 2011
Tags: linux, localization, time, timezone
My Google search results recently returned a couple of Google tools that I hadn't seen listed yet. I occasionally browse the more | even more page in my Google account to see what's new. Here are two tools I haven't seen listed there yet (one very useful, one just for fun).
Posted by marcM at Thursday, March 10, 2011
A recent issue of Database Trends and Applications magazine quoted a Forrester Research study that found 80% of database installations only use 20% of the features provided. My estimation is that this statistic also applies to other software, especially some of the most "popular" used and required on home, school, and office PCs. And this is a large aspect of why open source software should be used, encouraged, and by no means discriminated against in the public arena.
Let's avoid any anti-Windows or anti-Microsoft propaganda or personal preference. Anyone who knows me, already knows my personal preference for Ubuntu Linux anyhow. I'm going to focus briefly on the MS Office suite of applications, because as we know it is the dominant software in this arena.
My wife does things with MS Office at work that would make most people's head spin. She needs and uses the power, APIs, and scripting that it provides. She justifies the $X for her corporate license for Access, Word, Excel, etc. At home, she uses a word processor, rarely, for basic documents and a spreadsheet for rosters with name, address, etc. There is no justifying the expense of MS Office for home. She will occasionally use the old copy of Office97 from our college days, but our primary productivity software is OpenOffice.org. For me, running a Linux desktop, it's always OpenOffice or other open software.
If a corporation decides to buy a corporate license for MS Office or other proprietary productivity software, that's fine by me. When a government spends tax money on licenses for employees who don't use/need the added functionality, it's misuse of resources.
When a public school requires students to use MS Office to read an assignment downloaded from the Internet or as the only format for submitted assignments, there is a problem and an unfair bias toward students who can afford home computers and more over the MS Office software. This irks me. Of course OpenOffice can read/write to MS Office formats, so those "in the know" are OK (most of the time) but the majority of educators do not know this and if they do it is not taught or explained to students.
Teach students fundamentals, not memorized specifics, so that they can rapidly adapt and learn a variety of tools. I have seen countless times educators and students alike turn aside from alternative software options because it's "not the same," "too different," "too hard." The fundamental differences in MS Office and OpenOffice are negligible, and in my opinion, no more difficult to grasp than when MS Office dropped the menu bar and got all decorated with ribbons and bows. Users adapted to the changes due to necessity. It is no more difficult to adapt to another office suite.
The principle of cost vs features vs needed features vs compatibility, should be looked at in all organizations from small to large corporations, schools, governments, churches, and non-profits.
My point in all this is use the software you need for the job your performing and don't force others into your boat when another (potentially free) option will work equally well.
Posted by marcM at Wednesday, March 09, 2011
Tags: linux, MSOffice, open source, OpenOffice, software, ubuntu, windows
Today I noticed that my USB storage device (thumb drive, usb drive, memory stick; call it what you will) was not mounting when plugged into the PC. Note: I'm currently running Ubuntu 10.10 Maverick Meerkat.
The solution that fixed this was
sudo apt-get install usbmountIt's also good to note that lsusb will list usb devices detected on your system. Here you'll likely see reference to the usb drive although it isn't being mounted.
Posted by marcM at Wednesday, March 02, 2011
Unfortunately had to remove Linux from a dual boot machine today due to compatibility issues (shame on you hardware manufacturers). I wanted to reassign the Linux partition space back into the Windows partition. No problem, right? Maybe if you do this type of thing regularly and already have the tools at hand. This is the first time I have actually had to remove Linux, a sad day for sure, but a new set of tools for the future. Following is a brief walkthrough. (note: this was complicated by being a Eee PC meaning no CDs, USB memory devices only.)
In Brief:
Posted by marcM at Thursday, June 24, 2010
Tags: boot loader, boot USB, grub, MBR, partition