Berkeley CSUA MOTD:Entry 27588
Berkeley CSUA MOTD
 
WIKI | FAQ | Tech FAQ
http://csua.com/feed/
2025/07/09 [General] UID:1000 Activity:popular
7/9     

2003/3/3-4 [Computer/SW/Unix] UID:27588 Activity:very high
3/2     I want to do something like <command> | grep "Command Failed"
        and then test the exit value of grep. However, I want the output
        from the command to go to the screen but if I use "grep -v",
        the exit value of grep screws up (How are the exit values defined
        under "grep -v"?).  Help!                    -- unix newbie
        \_ You need to be more specific with what you're trying to do.
           And the point of exit codes is to not need to do BS like grep
           for failure.  Or just try different grep -v's and check exit code.
           \_ I want to have the whole output of a command go to STDOUT but
              at the same time grep the output of the command for stuff. -op
                \_ Look at the tee command then.
                   \_ Wouldn't he need a named pipe/temp file to get the
                      effect he's looking for?
                \_ Grep won't quite do what you want. Use awk:
        cmd 2>&1 | awk 'BEGIN {rc=0;} /^msg$/ {rc=1;} {print;} END {exit rc;}'
          \_ so why aren't you using perl, again?
                \_ awk is more portable
ERROR, url_link recursive (eces.Colorado.EDU/secure/mindterm2) 2025/07/09 [General] UID:1000 Activity:popular
7/9     

You may also be interested in these entries...
2012/8/29-11/7 [Computer/SW/Security] UID:54467 Activity:nil
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
	...
2012/3/29-6/4 [Computer/HW/Memory, Computer/HW/CPU, Computer/HW/Drives] UID:54351 Activity:nil
3/29    A friend wants a PC (no mac). She doesn't want Dell. Is there a
        good place that can custom build for you (SSD, large RAM, cheap video
        card--no game)?
        \_ As a side note: back in my Cal days more than two decades ago when
           having a 387SX made me the only person with floating-point hardware,
           most machines were custom built.
	...
2012/1/27-3/26 [Computer/SW/Unix] UID:54299 Activity:nil
1/27    Interesting list of useful unix tools. Shout out to
        cowsay even!
        http://www.stumbleupon.com/su/3428AB/kkovacs.eu/cool-but-obscure-unix-tools
        \_ This is nice.  Thanks.
	...
2011/10/26-12/6 [Computer/SW/Unix] UID:54202 Activity:nil
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
	...
2011/3/12-4/20 [Consumer/CellPhone, Computer/HW/Laptop] UID:54057 Activity:nil
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
	...
2011/2/6-19 [Computer/Networking] UID:54028 Activity:nil
2/5     hmm.
$netstat -at | grep LISTEN
tcp        0      0 *:43300                 *:*                     LISTEN
        \_ this is an sshd
tcp        0      0 *:49416                 *:*                     LISTEN
tcp        0      0 *:36201                 *:*                     LISTEN
	...
2010/3/10-30 [Computer/SW/Mail] UID:53751 Activity:nil
3/10    What email program do people in Cal CS use nowadays?  In my school days
        people used /usr/bin/mail, then RMail in emacs, then VMail in emacs.
        After my days people used Elm, Pine, Mutt (I forgot which order).  In
        my first two jobs we could tell the seniority of fellow engineers based
        on which email program they use at work, because everyone used what
        they used to use in their school years.  In my last two jobs though,
	...
2009/11/13-30 [Computer/SW/Unix] UID:53523 Activity:nil
11/12   How does one find out if a system has rootkit installed?
        \_ Unix or m$?
           \_ Unix. On M$ I always assume it's compromised.
              \_ Install Tripwire before you plug your server into The Net?
                 The only other answer I can think of is to reinstall the
                 OS from scratch on another server and do an md checksum
	...
2009/9/4-12 [Computer/SW/OS/FreeBSD] UID:53331 Activity:kinda low
9/4     I'm seriously very happy Soda no longer runs FreeBSD.
        FreeBSD is really going down the tubes
        http://freebsdgirl.com/2009/08/its-a-dirty-job-but-someone-ha.html
        \_ funny, I dont remember it geting pwned anywhere near as many tmies
           as it has since the switch to Linux.  And that blog post is
           only abou the installer, not the running OS
	...