theTuxRacer's questions

I use 11.04, Classic and sometimes the notifications just pile up, e.g. when I open thunderbird, and login to empathy, and start playing my music, all at once. I can see messages popping for 15 minutes or more. The Ubuntu wiki on notify-osd mentions Flood Prevention. Why isnt it being applied in this case? This overflow/flood didnt happen in 10.04.

I tried killing and restarting the notify-osd process, but then new notifications dont show up. The Me-menu hangs up, and I have to log out to make it alright.

Is this a bug? How do I flush the queue? Is there any workaround?

EDIT: I was able grab a screenshot. And now, all of a sudden, the messages have stopped popping.

Or does it overwrite the existing data in the mountpoint? Or is it just un-accessible?

This is a snapshot of error log:

06:16:29,933 ERROR EmailRMManager$:45 - Exception In get Message
com.rabbitmq.client.AlreadyClosedException: clean connection shutdown; reason: Attempt to use closed channel
    at com.rabbitmq.client.impl.AMQChannel.ensureIsOpen(AMQChannel.java:195)
    at com.rabbitmq.client.impl.AMQChannel.rpc(AMQChannel.java:222)
    at com.rabbitmq.client.impl.AMQChannel.rpc(AMQChannel.java:208)
    at com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc(AMQChannel.java:139)
    at com.rabbitmq.client.impl.ChannelN.basicGet(ChannelN.java:645)

I do the following command:

cat foo.log | grep ERROR to get an OP as:

06:16:29,933 ERROR EmailRMManager$:45 - Exception In get Message

What command should I execute to get the output as

06:16:29,933 ERROR EmailRMManager$:45 - Exception In get Message
    com.rabbitmq.client.AlreadyClosedException: clean connection shutdown; reason: Attempt to use closed channel

ie, also grep the line(s) after the pattern?

man echo works. but out of curiosity, does echo have something similar to a --help flag/parameter?

This is the output of ls -l

ls -l
total 53484
drwxr-xr-x 3 root root     4096 2011-02-10 05:59 ~
-rw-r--r-- 1 root root 54313810 2011-02-13 05:09 jobs.jar
-rw-r--r-- 1 root root   384035 2011-02-15 05:33 jobsLog.out

I can't do rm -rf ~ because that will remove my home directory.

What should I do? Its not a problem for me, but just an eye-sore.

When I connect my external drive, which has 4 partition, it opens 4 nautilus windows. When I connect a pen-drive, it opens another one for that. Is there a way that new windows will create a tab in an open instance of nautilus, and if there isn't any instance open, create a new one, and open further windows in that.

Thanks.

Is there any long-form, if at all? Or is it just a tradition from the 80's?

Is it possible to remove a particular host key from SSH's known_hosts file?

I usually end up deleting the entire known_hosts file, which I have no problems with doing, but just out of curiosity, is it possible to remove just a single entry?

I opened the known_hosts file, but I am struggling to understand its contents.

Below is the message I faced, which led me to ask this question:

Add correct host key in /home/wissen16/.ssh/known_hosts to get rid of this message.
Offending key in /home/wissen16/.ssh/known_hosts:1
RSA host key for foo.com has changed and you have requested strict checking.
Host key verification failed.

I need to run ssh-add <key> everytime I need to ssh into a webserver. Is there a way to add the ID permanently, so I dont have to keep adding the identities on each login?

EDIT: The key is a pem file, that I have downloaded from a cloud service.

Anyone has any tool, other than a pen and pencil to help me manage more than 5 "copy-pastes"? I heard of Glipper, but anymore, with a small description and pros/cons would be appreciated.

Thanks.

I use guake very heavily, and ssh into more than 3 computers at any point in time. I also have daemons running on some tabs (terminals). What I want to know, Is it possible to have the name of the current command as the name of the Terminal? Rightclikcing a tab, and changing its name causes this: (Look at the tab after Terminal 5)

Thanks.

I frequently need to check which packages are installed, and I use the following command:

dpkg -l | grep foo

which gives the following output

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                       Version         Description
ii   foo                       <version>         <description>

1. What does the ii mean?
2. What other flags are there?
3. How to read the flags? (because the explanation is quite complicated, IMO)

Thanks.

At the moment his is what I do:

Step 1:

locate fooBar
/home/abc/fooBar
/home/abc/Music/fooBar

Step 2:

Manually perform a removal, by copy-pasting each line.

rm /home/abc/fooBar
rm /home/abc/Music/fooBar

How do I do this in one step? Something like

locate fooBar > rm

Thanks.

I wish to display a cowsay message in every terminal window. The command I use is

 fortune | cowsay

Any ideas how to make it appear whenever I start a new terminal session?

I wish to add a new line on every prompt. Instead of the cursor showing on the line as name@machine:~$ _,

I want it to be on the next line, like as:

name@machine:~$
_

Thanks.

I need to tag my MP3 library, and have tried kid3 (which was manual tagging), when I used Kubuntu 9.10 (I now use Ubuntu Meerkat) Here are the features I am hoping for:

• A good and clean UI.
• Tagging should be automatic, like Winamp's autotag feature, which rocks, btw!
• It should also embed the cover-art in the mp3, not copy a jpeg file in the folder, because now-a-days all players support displaying cover art. But acceptable if not possible.
• Rename the files as per some regular expression like %TrackNo - %Artist - %Title.
• Should be accurate, and more importantly smart. I want to start tagging at night, and hopefully my collection should be done by the morning, w/o it being stuck at a user prompt at 1%.

If one app cant do all, I am willing to use 3, wouldn't mind exposure to a few more apps ;)

I have used picard or someting, and I didnt like it quite a lot. But wouldn't mind using it, if there is no other alternative.

Thanks for your time!

I edited a file in /etc/ that I want to save, but forgot to open it using sudo. I remember there was a command to save such a file in vi, and want to know if there is any such way to do it in nano?

Thanks.

What does the above Error mean? What is an installation candidate?

I was trying to do

sudo apt-get install munin-memcached  

and I get this message:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package munin-memcached is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package munin-memcached has no installation candidate

I googled for the problem and someone said to do a apt-get upgrade but it still did not solve my problem.

I fooled around with the colors and stuff, in the terminal, and now want to go back to the maroon and white default config of the the terminal. What files do I have to delete?

Is it possible to get a close button on the OSD?

It stays for a long time, and sometimes I have colleagues over on my PC, and I dont want them seeing who is online, or what song I am listening to. No, I can't disable it.