4/27    I wrote a little shell script to collect iostat data:
        #!/bin/bash
        DATE=`date +%m%d`
        DATADIR=/var/tmp/user
        OUTPUTFILE=$DATADIR/$DATE.out
        while true
	...

5/8     Hello everyone!  This is Josh Hawn, CSUA Tech VP for Spring 2012.
        About 2 weeks ago, someone brought to my attention that our script
        to periodically merge /etc/motd.public into /etc/motd wasn't
        running.  When I looked into it, the cron daemon was running, but
        there hadn't been any root activity in the log since April 7th.  I
        looked into it for a while, but got lost in other things I was
	...

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
	...

7/29    Happy Sysadmin Day
        \_ our "sysadmin" today deleted /home. When we asked her why
           she said she didn't do it. When I checked the sudo logs,
           I found these two commands in order:
               COMMAND=/bin/rm -r /home testuser
               COMMAND=/bin/rm -r /home/testuser
	...

5/19    If script A runs, and calls script B ..... is it possible for me to exit\
        script A based on results of script B and not continue?
        \_ assume any shell
        \_ Yes.
           \_ without passing the result to some stupid temp file?
              \_ It sounds like you want "scriptb || exit", which will run
	...

4/22    In Linux is there an easy way to rename the scripts in /etc/rc?.d ?
        For example I want to set all the /etc/rc?.d/S91apache to S100apache
        so that it'll run the ramdisk BEFORE going to apache.
        \_ Sure, just move them.
           \_ I mean is there a script that will rename all of them
              for me? Like: setrc apache2 0 0 1 1 1 1
	...

10/27   http://www.maxgames.com/play/flash-mind-reader.html
        how does this work?
        \_ sh -c 'for ((i=0;i<10;i++)); do for ((j=0;j<10;j++)); do echo "$i$j-(\
$i+$j)" | bc; done ; done' | uniq
        \_ bash -c 'for ((i=0;i<10;i++)); do for ((j=0;j<10;j++)); do echo "$i$j\
-($i+$j)" | bc; done ; done' | uniq
	...

8/18    Hi again, new freebsd guy here again, in bash I was able to go
        LD_LIBRARY_PATH=/opt/foo/lib ./runmyapp
        I managed to do this in tcsh by using setenv in a shell script
        that setenv's the lib path and then executes $1, just wondering
        if there was a way to do it in 1 line from the cmd line as in bash?
        Thanks, btw %2c or %3c worked.  Freebsd, tcsh and vi forever!
	...

5/5     Is there a good (or standard) way to make an offline copy of a w
        ordpress blog (mine, not someone else's)? tia.
        \_ oh man.
           \_ I could cobble something together with curl / wget, but I'd
              rather not if there is a standard way of doing this.  I'm
              pretty new to wordpress / blogging and I just want to keep
	...

2/10    I have an sh file that does a mount.. the mount does an
        authentication. I previosly stored the username and password
        from zenity prompts. However, I can't get a return on the password
        field. The following only works on the username:
        mount -t davfs "http://blahblah.com/BLahUser11" /mountdir << EOF
        ${username}
	...

1/13    I want to extract a couple integer from an xml file, mainly,
        xml file from http://weather.com so I can put it on my xplanet marker
        file. has anyone done similar things (parse and extract data
        from xml) using shell script instead of python/perl?
        in the world of perl, it make sense to dump things into a hash
        which i can easily extract key/value pair.  can i achieve similar
	...

12/18   Campus USENET service will be terminated on 12/31.
        http://ls.berkeley.edu/mail/micronet/2008/1608.html
        \_ I emailed RobR to tell him. -ausman
        \_ The CSUA is considering asking campus to allow us to run NNTP for
           ucb.class.*, as bSpace sucks major major ass. Thoughts? --t
           \_ That's noble, but maybe the effort would be better spent
	...

8/26    Poll: how many of you pub/priv key users: 1) use private keys that
        are not password protected 2) password protect your private keys
        but don't use ssh-agent 3) use ssh-agent:
        1) .
        2) ..
        3) ...
	...

8/29    There was once a CSUA web page which runs an SSH client for logging
        on to soda.  Does that page still exist?  Can someone remind me of the
        URL please?  Thx.
        \_ what do you mean? instruction on how to ssh into soda?
           \_ No I think he means the ssh applet, which, iirc, was an applet
              that implemented an ssh v1 client.  I think this page went away
	...

8/6     Amazon and Apple have lame security policies:
        http://www.wired.com/gadgetlab/2012/08/apple-amazon-mat-honan-hacking/all
        "First you call Amazon and tell them you are the account holder, and
         want to add a credit card number to the account. All you need is the
         name on the account, an associated e-mail address, and the billing
         address. "
	...

7/18    "Largest penis record holder arouses security suspicions at airport"
        http://www.csua.org/u/x2f (in.news.yahoo.com)
        \_ I often have that same problem.
        \_ I think the headline writer had some fun with that one.
           \_ One time when I glanced over a Yahoo News headline "U.S. busts
              largest-ever identity theft ring" all I saw was "U.S. busts
	...

4/19    My Firefox 3.6.28 pops up a Software Update box that reads "Your
        version of Firefox will soon be vulnerable to online attacks."  Are
        they planning to turn off some security feature in my version of
        Firefox?
        \_ Not as such, no, but they're no longer developing this version,
           so if a 3.6.x-targeted hack shows up, you're not going to get
	...

11/8    ObM$Sucks
        http://technet.microsoft.com/en-us/security/bulletin/ms11-083
        \_ How is this different from the hundreds of other M$ security
           vulnerabilities that people have been finding?
           \_ "The vulnerability could allow remote code execution if an
               attacker sends a continuous flow of specially crafted UDP
	...

11/11   MacOSX's Sandbox security hole:
        http://preview.tinyurl.com/7ph2wtg [arstechnica]
	...

4/28    Will wall be fixed?   - jsl
        \_ What's wall?
           \_ An anachronism from a bygone era, when computers were hard to
              comeby, the dorms didn't have net, there was no airbears, and
              when phones didn't come standard with twitter or sms.
           \_ A non useful implementation of twitter.
	...

8/20    When I use rsync to backup, it's pretty cool except in cases where
        I rename a directory name from the source. Rsync will just do
        a plain copy. Is there a program that'll detect renaming of
        directories (by checking for children files), or at least
        move them to a dated directory?
        \_ Not related but beware of using rsync as a backup tool.
	...

7/17    -rw-r--r--@
        What does the "at sign" mean? This is on Mac OS. VMWare disk file.
        \_ The file has metadata attributes
           \_ How do I add/delete attributes to files? What about
              -rw-r--r--+ <-- what is the "+" sign? Also how do you make
              tar preserve these attributes?
	...

7/7     what happened to our web presence? http://www.csua.berkeley.edu
        not working
    \_ That would be because we've yet to set them up afaik. Steven *does* have
    a job after all. The idea is that we want a separate computer mounting the
    web directories, so that if an exploit compromises the webserver, the shell
    server (soda) itself will be insulated from the attack.
	...

6/28    Hello everyone,
Logins to soda are back open.  The new ssh key is
2048 4b:96:67:18:27:da:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX
Please allow public key authentication since it is more secure
than plain password. Also if you see this posting, it means
anybody could have posted the annoucement.  Because  the
	...

6/29    Please allow public key authentication since it is more
        secure than plain password.  If you see this posting, it
        means anybody could have posted the annoucement.  Because
        the official csua web site is still down., this makes it a
        little suspicious to the truly paranoid.
        p.s.  this web entry format is counter intuitive.  And how come
	...

2/26    If I want to rsync a perforce or svn directory while users
        are checking things in, could I wind up with a corrupted copy?
        \_ sure why not.  if you are really cool, your copy of the svn
           repo is on LVM, and you snap the LVM to copy it.
           \_ It'll seem less cool when you realize you've taken a snapshot
              of a block level device, which only guarantees that this set of
	...