4/04    Is there a good way to diff 2 files that consist of columns of
        floating point numbers, such that it only tells me if there's a
        difference if the numbers on a given line differ by at least a given
        ratio?  Say, 1%?
        \_ Use Excel.
           1. Open foo.txt in Excel.  It should convert all numbers to cells in
	...

12/18   Happy 25th birthday Perl, and FUCK YOU Larry Wall for fucking up
        the computer science formalism that sets back compilers development
        back for at least a decade:
        http://techcrunch.com/2012/12/18/print-happy-25th-birthday-perl
        \_ I tried to learn Perl but was scared away by it.  Maybe scripting
           lanauages have to be like that in order to work well?
	...

11/7    If I don't need to print for a few months, do I need to keep adding
        new ink to inkjet printers to prevent them from drying and clogging
        heads? Or will it just magically work once I add in new ink
        in a few months?
        \_ The nozzles will clog. Print a test sheet every couple weeks.
           Or remove the cartridges and put cellophane tape over the nozzles,
	...

8/28    Hi, anybody printed a photo image to a big plotter?  Something like
        36"x36"?  I'm wondering how many megapixels the image need to
        have in order for the print to "look good".  There is a rule of
        thumb?  Like 6 megapixel is good for X size print.  10 megapixel
        is good for Y size print.  Thanks.
        \_ You don't need that many more megapixels for much bigger prints,
	...

8/6     mrauser, what ddya think of this:
        http://www.nplusonemag.com/node/678/print
        \_ Sorta tl;dr.  It seems pretty dense, so I'll read it eventually...
           just haven't really had the time. -mrauser
           \_ yep, it's dense but pretty good. - !OP
	...

4/23    what book is this?
        "I'm reading this horrible horrible book about a programmer
         from silicon valley that gets magically
         transported into some world where magic is real
         and uses computer programming skillz to become the world's
         greatest sorceror … in book 1 of the series
	...

10/24  What's an easy way to see if say column 3 of a file matches a list of
       expressions in a file? Basically I want to combine "grep -f <file>"
       to store the patterns and awk's $3 ~ /(AAA|BBB|CCC)/ ... I realize
       I can do this with "egrep -f " and use regexp instead of strings, but
       was wondering if there was some magic way to do this.
       \_ UNIX has no magic. Make a shell script to produce the ask or egrep
	...

3/12    I am curious what others think of tablets like iPad. They don't seem
        useful to me, but I use my computer for more than web browsing,
        Facebook, and Twitter. Why would I buy one instead of a laptop?
        They seem like a disabled laptop to me, but at a higher price.
        \_ You are most likely a coder.  iPad is not for coders.  They are
           what you get your non-technical friends.  Or musicians.  Look at
	...

2/5     hmm.
$netstat -at | grep LISTEN
tcp        0      0 *:43300                 *:*                     LISTEN
        \_ this is an sshd
tcp        0      0 *:49416                 *:*                     LISTEN
tcp        0      0 *:36201                 *:*                     LISTEN
	...

1/23    may the awesome rootstaff please apt-get install:
        colorgcc, colordiff, colormake
        thanks!
        \_ Done.  In the future email such requests to root@csua for
           faster response
           \_ totally, understood.  Altho yeah I do like asking for
	...

10/14   2 apache 2.0.52 servers running on Linux boxes.  Identical httpd.conf
        files (except for ServerName).  But on one, if a CGI script takes
        longer than 300 seconds, it times out.  The other, not.  Why is that?
        \_ Perhaps network equipment configuration. Or try comparing settings
           in /proc/sys/net.
           \_ I ran /sbin/sysctl -a | grep tcp, all settings are the same.
	...

9/3     Okay, my sed and awk skills are obviously not up to par here.
        I want to only see the "500's" in my apache error log, how do I
        do that? I want to see the whole line, not just the 500 error code.
        Never mind, grep " 500 " is close enough.
	...

7/14    Shell Programming question: I want to call a script with 1 arg
        and have it figure out whether $1 is a MAC address or an IP address
        and then do call the appropriate function.  What is the best way
        to do this, given that sh/bash/ksh do not have something like
        the =~ in perl.  Check for exit status of grep, or is there a
        a better way?  For the moment, let's just say the two tests are:
	...

9/4     Happy Labor Day! Thank you, Labor, for weekends, mandatory breaks,
        and a generally un-serf-like workplace.
        \_ There are a few books coming out about how horrible the
           New Deal was for America.  I love it.
           New Deal was for America.
           \_ There are also books out about how much the Jews control
	...

8/17    How to I grep to exclude all lines with more than 1 / ?
        \_ After reading the grep man page:
           grep -v -E '/[^/]*/' myFile
	...

6/12    Inside of a C++ program, I do a "ps | grep usename" for logging
        purposes.  where username = getenv("USER");  Doing this directly is a
        gigantic security hole because someone could set $USER to some command
        line and execute arbitrary code.  What's the best way to make this
        safe?  Is there some standard way to check the input in a case like
        this?
	...

4/12    Just finished a programming quiz. Do you think critizing the test
        was OK? They wanted someone to write code for something that could
        be done via shell aliases. This was at Riverbed.
        \_ I assume Riverbed is a company and this was an interview?  If so,
           I think this kind of criticism is a great thing to do.  It shows you
           really know your stuff if you can do both.  If they count that
	...