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
	...

1/4     I want to test how my servers behave during a disk failure and
        a RAID reconstruction so I want to simulate a hardware failure.
        How can I do this in Linux without having to physically pull
        a drive? These disks are behind a RAID card and run Linux. -ausman
        \_ According to the Linux RAID wiki, you might be able to use mdadm
           to do this with something like the following:
	...

2/14    You sure soda isn't running windows in disguise?  It would explain the
        uptimes.
        \_ hardly, My winbox stays up longer.
        \_ Nobody cares about uptime anymore brother, that's what web2.0 has
           taught us.  Everything is "stateless".
           \_ You;d think gamers would care more about uptime.
	...

2/4     random C programming/linker fu question.  If I have
        int main() { printf("%s is at this adddr %p\n", "strlen", strlen); }
        and soda's /proc/sys/kernel/randomize_va_space is 2 (eg; on)
        why is strlen (or any other libc fn) at the same address every time?
        \_ I don't pretend to actually know the right answer to this, but
           could it have something to do with shared libraries?
	...

3/12    When writing functions and structs in Windows user-mode and kernel-mode
        code, when do you use IN/OUT, when do you use __in/__out, and when do
        you not use either?  I'm confused.  Thanks in advance.
	...

8/1     What keeps hapening to soda? load of O(1000) then crash?  Is it
        still nfs, even past the new kernel we did just for nfs?
        \_ It's still NFS. Filer plz kthxbai.
           \_ Filer eliminates NFS?
	...

7/24    Firefox 3.5.1 on MacOS is a piece of crap. It crashes ALL THE TIME.
        It has crashed 3 or 4 times on me in the last hour, and not on
        the same pages either. The new Yahoo! home page also sucks ass.
        \_ os x keeps trashing my raid disk: '11 hours to rebuild. have fun
           with the kernel IO subsystem running like shit until then".
           Worthless piece of shit.
	...

7/20    For those who care btw, it looks like eclipse is now A Standard Tool
        at UCB ugrad cs, probably replaced emacs.  Furthermore, people get
        angry at seeing Makefiles, (since eclispe takes care of that).  I
        guess it's just a sign of the times.
        \_ The more people at my work use eclipse the less the code is
           managable in emacs.  I'm not sure which application's fault
	...

2/13    Question about memory relocation:
        These days most h/w has a relocation register. Could the relocation
        address be stored on disk or in kernel memory vs. in a register? Yes,
        that would be slow but is it possible? Do you *need* a relocation
        register or does it exist purely for performance reasons? I was
        reading some paper written by IBM in the 1960s that seemed to
	...

1/20    when I do "cat /proc/sys/kernel/tainted"
        I got a single number "1"
        what does this mean?
        \_ I think this refers to whether you've got any non-open-source drivers
           loaded, but I'm not sure.
        \_ I think this refers to whether you've got any non-open-source
	...

1/13    I've been using Ubuntu as my primary laptop for 3-4 month.  But there
        are still alot of things i need to learn... for example, after an
        application crashes, where do I look for any sort of logs that might
        give me a clue what happened?  how linux monitor the crashes?  So far,
        i had two bad episode of thunderbird trying to log onto my company's
        remote LDAP server and actually crashed the entire system... (as if
	...

12/31   SOMEONE PLEASE FIX KEG!  Why does it keep crashing?
        \_ It's hard to tell. The risk of crashing seems to increase with
           disk activity, or so it seems, but debugging the kernel doesn't
           seem to yield much info. Email root for detailed info; I don't
           have a deep understanding of the problem --t
           \_ How about a backup LDAP server? I don't need files as much
	...

12/6    I'm running 64bit VMWare 2.0 in debian lenny/testing.  I have 18
        guest VMs running, all in bridged mode.  Works great.  the 19th VM
        I turn on has no working network.  No net, dhcp/tftp doesn't work,
        nothing.  Can anyone think of a network or kernel setting in Linux
        that would prevent any more VMs from getting network access?
        Is there a limit on number of bridge interfaces?  Where is this
	...