when we type mpd & to bring up ring on a single nodethe output is a random number,like this:>>mpd &>>[1] 5450anybody knows what is this resulting number?ps: i dont think its a port number because when i type >>mpd -eits prints out the port number mpd takes
View 1 RepliesMy Ubuntu goes to sleep after 5 minutes. When I wake it up, and enter Firefox, and try to type in an address, it does not bring the dropdown menu with the history of the URLs that begin with the string I just typed. Is there anyway to get it to stop forgetting the history after Ubuntu comes back from sleep?
View 3 Replies View Relatedi want to generate random number in c programming from -1 to 1
View 1 Replies View RelatedI want to generate random name for email file name to prevent overwriting but $RANDOM ENV VARs does not work in it what can I do? this is my procmailrc:
Quote:
SHELL=/bin/bash
SUBJECT=`formail -xSubject:`
FROM=`formail -xFrom:`
SUBJECT=`echo $SUBJECT | sed -e 's/ /-/g'`
FROM=`echo $FROM | sed -e 's/.*<//g' | sed -e 's/>//g' | sed -e 's/@/AT/g'`
STOREFILE=20`date +%y-%m-%d_%H-%M-%S`_${FROM}_${SUBJECT}_${RANDOM}${RAMDOM}
it works fine except ${RANDOM}${RAMDOM} and I do not want to use mktemp command .
Not only that but I need tons and tons of them generated, and I need it to be totally random each time.
Code:
matthew@mvm:/h/misc> cat a
#!/bin/bash
for i in {1..5}; do
echo $RANDOM
[Code]....
There you can see that it is the same number. It does that every time!! Grrr. The strange thing is each time I manually type [or copy & paste] it into the terminal, it gives random [not static, like I am getting from my script] results.
The reason I want this is because I am making a script where this line will randomly go up or down [depending on if the random number is 1 or 0].
I just tried booting SUSE 11.0, but the system stops at the point it shows "initializing random number generator". I have left the system running at that point for almost 2 hrs, with no way to get past that. System isn't locked up. It has never done this before. How do I fix this?I have also tried failsafe booting, but it stops at the same spot also.
View 3 Replies View RelatedAs this thread [URL]... reached over thousand posts, it's obvious that these freezes (which actually boils down to keyboard and mouse not being listened to by X server, so "not working") hit large numbers of Ubuntu users. As that thread is already very large and hard to read I'd like to advance a hypothesis here : This problem occurs only on multi-core CPUs.
I've installed 10.04 on two machines: and old box with a Duron and new one with quad core. The old box runs just fine with 10.04. The new one - you know Has anyone exeprienced this problem on a single core machine?
I'd like to somehow connect a serial port to a headphone jack, plug it into the geiger counter and literally dump random noise from the geiger counter into the entropy pool used by /dev/random
View 7 Replies View RelatedHow to bring the "Type to search..." window into focus directly, not by switching to the "Windows view" first?Anybody knows the relevant keybord shortcut? I went though at a number of introductions to GNOME 3, and also examined various tabs at:
Code:
User
> System Settings
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What is the procedure to increment the number under the cursor ? 12 Which key i have to press to make this 12 to become 13. I know the method of keeping the number in register and incrementing, But am looking for a single key to increment the number under cursor.
View 2 Replies View RelatedI have ubuntu on my desktop - works great. The problem is I am trying to install it on my laptop. I have the image burned, and it's booting off my cd rom just fine. The problem comes after that. It goes to the ubuntu loading screen for a pretty long time, then after that the screen scrambles in random black and white box type things, at which point I get no response unless I hit the power button at which point a linux screen pops up and tells me it's waiting for programs to close, then boots down.
View 5 Replies View RelatedHow to number of connections for a single ip on port 80 to CentOS 5.5 with iptables? connlimit did not work on CentOS and nginx does not provide a module for that
View 4 Replies View RelatedI am running a headless Ubuntu 10.04 server with the 2.6.32-28-generic kernel. For what I can figure out no single direct cause I get a high load average and the following syslog output at random intervals. Generally the load average will drop back down to normal however the kernel errors will still continue What little I have been able to find has pointed to memory issues. I am not totaly convinced this is the cause as the server will be showing >50% free when the errors are happening.
[code]...
I was having no problems (that I knew of) browsing the web since installing Ubuntu 10.10 a week or so ago. I was previously trialling Win7 as my customers will likely be using that in the future. Then I wanted to go to internode.on.net. Got the following: Quote: Firefox can't establish a connection to the server at internode.on.net. or Quote: Oops! Google Chrome could not connect to internode.on.net
As it was just after Christmas I thought it must be down, for upgrades or maintenance etc. I later tried to go to Freebsd.org; same error. I've been having a small number of other websites give the same error. I thought nothing of this until I tried it on my wife's macpro. I could log onto all the websites I wanted to and none gave any indication of having been down. Both boxes are on the same adsl connection. I still can't access internode or freebsd on 10.10 yet have been able to access every website on OSX. Now, I was only looking at them for info but am worried I won't be able to access something important. (so far everything I 'need' is working)
ping just drops out. edit: weirdest thing! I just retried and now can not emulate the problem for internode. freebsd still won't show. that is less than five minutes between problems and resolution! I hadn't even posted! But I still would like to have an idea of what is going on. Here is the ping error for freebsd: Quote:
[Code]...
i have 10 vi files . these files contain some system related information. i need to combine the output of all these files into a single file. the final file should contain contents of all these 10 files and the output should be in a tabular format.
is there any command in vi that i can use to create a table ?
I always keep my headphones as well as my 2.1 speakers connected simultaneously on my PC (Gigabyte motherboard). Both these audio devices work fine simultaneously on my Windows 7, but in Ubuntu, only my headphones work, speakers don't work at all. I tried changing some settings in SOUND PREFERENCES as well as ALSA SOUND MIXER, but not luck so far.
View 1 Replies View RelatedDoes anyone know how I can force single channel sound output? I'm deaf in one ear and want to mix the channels (especially when I need to use headphones).v
View 3 Replies View RelatedThis is more of a bash or scripting How do you update a single line of an output in a bash script. I have had to do the:
[Code]..
Is there a way to clear only a single line of output? my goal is to mimic a single line animation, much like the '=>' '==>' ' ===>' we have all seen in other programs.
got a situation where if i process a command i get a numeric output something like below:
for example:
# cat example.txt
856589
856470
987866
656658
876897
now i want to see this output in single line like below:
856589 856470 987866 656658 876897
how do i get this?
i need to count the number of files and put the output into a variable. i used wc -l filename but i couldnt find an option to put the output to variable. example if the number o line is 5, i need the output of echo $x is 5.
View 3 Replies View RelatedThe output of my fdisk command is as follows :-zodiac@gml-admin:~$ sudo fdisk -l[sudo] password for zodiac: Disk /dev/sda: 160.0 GB, 160041885696 bytes255 heads, 63sectors/track, 19457 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xe30ce30c
Device Boot Start End Blocks Id System
/dev/sda1 * 1 1958 15727603+ 7 HPFS/NTFS
/dev/sda2 1959 4752 22437838 f W95 Ext'd (LBA)
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I need to create a single line of output from multiple and variable lines of input in a Linux bash shell script.
My input file looks like this:
Where there may be any number of umsecondaryphonenumber lines; if there is not a umsecondaryphonenumber line for a telephonenumber, I don't want to write any output.
So, the output file should look like:
The script I have so far is:
My question is - how do print each of the elements of an array in one record - i.e. what do I put in place of howdoiprintarray?
I have been having a lot of trouble lately with installing from CD/DVD. The DVD reader/writer on this laptop is new. Nevertheless, trying to install Ubuntu onto an exernal HD, I get 'input output error on sr0 logical block (a large number) After a long time the booting proceeds to a point, but I never get the actual installation started, and have to shut down manually.
The CD is fine, says the Ubuntu-checker. I just installed using my sons laptop, and there was no trouble. Question: does this indicate a motherboard failure? A memory block damaged? Do you know of a diagnostic tool I can use to check the reading of a CD/DVD?
After running the following command, I get:
[root@yukiko /]# find / -iname .bashrc
/home/clamav/.bashrc
/home/vpopmail/.bashrc
/etc/skel/.bashrc
/root/.bashrc
But I would like to have a command that prints a specific line by supplying the command with the line number, for example:
[root@yukiko /]# find / -iname .bashrc | getline(2)
/home/vpopmail/.bashrc
Is there such a command on CentOS?
My script.
Code:
I cannot get it to give me the "Unknown?" output. How do I fix my script so that it will give me "Unknown?" when I type in an incorrect prefix?
How to get output of text file containing account number, debit amount, credit amount,date using shell script?
View 1 Replies View RelatedI'm looking for a script that copies a random .jpg from a random folder in my ~/Pictures folder to my ~/temp folder with a standard filename. This file will then be displayed in Conky. I can fix the last part, but I cannot find a way to do the first part.
View 3 Replies View Relatedwhen I type "crontab -e" to edit the file, it is not opening in the editor & showing output as "285". I just wanted to edit crontab, So could anybody please tell me which is the real file of crontab, so I can manually edit that file using vi editor or nano. Or if that default editor is corrupted when I type "crontab -e", how can I change default editor before using "crontab -e" command. I will be waiting for your kind reply
View 2 Replies View RelatedIs there any way to connect a Fedora 14 PC to a Token Ring LAN? I know I need to use the olympic driver for my card and I know how to configure it in an older version ubuntu, but I'm coming up totally empty on Fedora.
View 11 Replies View RelatedI upgraded to 10.10. Now I want to install medibuntu. I have the repos added, but when I try to add the key-ring with the terminal it won't add. Can someone give me the command for that again?
View 7 Replies View Related