General :: Writing With "W" In Top Is Not An Option As Top Command
Sep 2, 2010
I have the "top" command and I want to override its default behavior for every user, even for future users.
Writing with "W" in top is not an option as my top command somehow overrides the custom behavior per user and always turns to default behavior.
So, what I am asking for is, are there command line switches that override default behavior of top, for example:
Code:
top -<BLABLA>
to show me the load average per core which would be equivalent to starting top first and then pushing the key "1" on the keyboard.
Remember, writing to toprc is not an option for me as top for some reason ignores its config and just goes for default behavior.
Edit: it seems to me this is a bug in the procps package. That is why I updated it to the latest version for my distro CentOS 5.5 and procps to the following [URL] HOWEVER, it doesn't work even now.
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Jun 7, 2011
Currently we are using Unix machine & the activity are logged in the file using following code used in profile
.profile code
# /ln/aud_root/dds_ibm/.profile
trap 'print "not allowed"' INT
trap 'print "not allowed"' QUIT
trap 'print "not allowed"' TSTP
[Code].....
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Nov 4, 2010
how to write a command (for loop) that would ping a Class C subnet to make it so that it only replies once and does not show the statistics?
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Jun 18, 2010
Code: cmd='date | wc'
$cmd If this script is executed, an error is generated. The reason written was that "The execution fails because the pipe is not expanded and is passed to date as an argument".What is meant by expansion of pipe. When we execute date | wc on the command line, it goes fine.then | is not treated as an argument. Why?
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Jan 17, 2011
Code:
if [ -x /usr/bin/id ]; then
if [ -z "$EUID" ]; then
[code]....
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Nov 17, 2010
$ ls one.tar.gz
one.tar.gz
$ tar -xvfz one.tar.gz
tar: z: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
$ tar -xvzf one.tar.gz
one
$ tar -xzvf one.tar.gz
one
$ tar -zxvf one.tar.gz
one
$
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Mar 10, 2011
i've an issue in a firewall command i hope u help me on.when i try to type the following firewall command:iptables -A INPUT -s xxx.xxx.xxx.xxx -dport 8000:9000 -p tcp -j ACCEPTit gives me:Bad argument `8000:9000`it complaints about the port range and i cant see in problems in that.i also tried to change the order of the options but it never worked.one other thing,why it don't allow me to add -sport option in the above command?
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Feb 8, 2011
I'm trying to use the dirs command with the +N option. The manual says: dirs [-clpv] [+n] [-n]Without options, displays the list of currently remembered directories. The default display is on a single line with directory names separated by spaces. Direc- tories are added to the list with the pushd command; the popd command removes entries from the list. +n Displays the nth entry counting from the left of the list shown by dirs when invoked without options, starting with zero.
dirs -v shows:
0 /dir1/
1 /dir2/
2 /dir3/
However, dir +n 1, dir +N 1, dir -v +n 1, dir -v +N 1 all give:
[Code]...
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Aug 1, 2010
In the rpm manual, Print 50 hash marks as the package archive is unpacked. Use with -v|--verbose for a nicer display. But actually, there're not enough hash marks when I'm installing a package. About 44 hash marks there...Well, I just want to know where the `50 hash marks' are.
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Jan 26, 2010
I am writing a shell script that unzips a ZIP file into an existing hierarchy of files, potentially overwriting some of the files. The problem is that the unzip command asks for confirmation: replace jsp/extension/add-aspect.jsp? [y]es, [n]o, [A]ll, [N]one, [r]ename: y
This is unacceptable for a script.I need an option to force unzip to overwrite the files.I did not find in the man page nor with Google.
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Apr 23, 2010
I tried to install gfortran on my computer. When I extract the tarball, I forgot the '-C' option of the command 'tar', which should be added, according to the instruction of installation.
That is to say, I wrote in the mp directory:
Then, the tarball creates a '/usr' directory under '/tmp' directory, and it contains only a /local directory, which contains only a /gfortran directory.
The thing is, when I modify the name of this directory, for example, from /usr to /usr-modi, I found that the name of the directory /usr under the root directory is also changed from /usr to /usr-modi.
How can I delete this annoying /usr directory under /tmp, without tragically affect /usr under the root directory?
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Jan 10, 2011
I am trying to automate an svnadmin dump command for a backup script, and I want to do something like this:
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This seems to work, in that it looks through each svn repository in /var/svn, and runs svnadmin dump on it.
However, the second {} in the exec command doesn't get substituted for the name of the directory being processed. It basically just results a single file named {}.svn.
I suspect that this is because the shell interprets > to end the find command, and it tries redirecting stdout from that command to the file named {}.svn.
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Aug 28, 2009
I have one distro installed, LILO as the boot loader, and i wonder if it's possible to duplicate the lilo entries with an option which executes some script or command during, or after the boot.Actually, i installed a Slackware + autolaunching virtual machine, but i have two VM, so i need to autolaunch one of them. May i choose it from the very beginning ?
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May 12, 2011
I was just wondering is 2.5mb a second normal to write to a usb2 pendrive with the 'dd' command?
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Is there a command to measure the time a file takes to transfer from HD to usb pen? (not using dd).
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Nov 19, 2010
I'm trying to write a 100MB file for example all with 0xFF so in the hex editor it should look like "FF FF FF FF FF FF" etc. I know you can write a 0x00 with this line:
Code:
dd if=/dev/zero of=myfile bs=1M count=100
But how to do 0xFF or another character?
I want to use the 'dd' command because with the 'bs=1M' argument it is 100 times faster than any other shell command I've seen.
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Nov 11, 2010
I am running a java application on centos. For now I have a gsm modem connected via the the usb cable. Below is the message I get when I type the command dmesg | grep tty
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
00:0c: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
usb 2-2: pl2303 converter now attached to ttyUSB0
[code]....
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Mar 19, 2011
I have installed Centos in my server and when I take, top -c command its not showing the "command" option correctly. Due to the same, I'm not able to correctly track down the file which causes excessive usage. For eg:
top - 09:30:29 up 72 days, 12:46, 2 users, load average: 0.21, 0.16, 0.15
Tasks: 122 total, 1 running, 120 sleeping, 0 stopped, 1 zombie
Cpu(s): 4.8%us, 0.7%sy, 0.0%ni, 93.5%id, 1.0%wa, 0.0%hi, 0.0%si, 0.0%st
[code]....
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Apr 11, 2010
how can i copy by script or command files with *.v suffix by "-p" option?
Example:
kuku.ggg
kuku.dd
kuku.v
kuku.vb
only if i try to copy kuku.v by default cp -p will done.
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Nov 20, 2010
my Setup is Fedora 14 x64 + radeon hd 4830 i've downloaded .run package from ati site with latest driver for x64 systems. installed it, but didn't edited grub.conf becouse i didn't understood anything there (probably didn't spent enough time to get things understand) Now i've lost possibility to enter my Fedora system. during boot it lost it's modern blue boot screen (with filling drop), it was replaced by standard old boot screen with triple-color stripe. after this boot screen monitor start blinking going on and off. and on last step i'm getting "Fedora 14 boot bla bla bla something" on screen. nothing works except Ctrl+Alt+Delete. system reboots showing successful daemons shutting sequence. How can i edit grub menu from initial grub screen is it possible to it's own 'e' option or 'c' from grub command line?
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Apr 16, 2010
When writing a script using command-line tools why is it more difficult using graphical tools?
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May 14, 2010
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Aug 26, 2010
Does anyone know the command line option to show rhythmbox?
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rhythmbox-client --(option) --no-start
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Feb 11, 2011
I was making a download option in a script but I cant seem to get the command right
Code:
tar cjf /tmp/file.tar.bz2 --exclude="config" ./
My archive ends up with a file-1.tar in it.
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Jun 20, 2011
I am not able to print multiple files when using the -#X (number of copies) option using lpr command.
The below is the command that i use :
lpr -#2 -o landscape -o deliver-to=Location -Pmyprinter file-name.pdf
Is there any configuration files that i need to modify for this option to be available ?
The printer that i have is using Postscript driver.
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Feb 3, 2010
i have created on folder in my server to upload some regular states. I want that user can modify or upload already stored files. but, should not upload any unwanted files orfolders.for that i want to use "rm" command as auto scheduler (putting this in cron tab.so that all files will be removed except some required files / folders for which this upload facility is activated. users are using secure-shell for uploading data.
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Jul 31, 2010
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May 14, 2010
I know there is a way to do this... What do I need to install to give me this option from the login screen?
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Jun 17, 2011
I am having memory problems on my old Compaq PC, and am trying to run memtest86+-4.20 to check it. I downloaded the source file, and tried a compile, but had the following problem:
[code]...
how to get around this issue?
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Jun 27, 2010
I am having a problem with running the mplayer dvdnav option from the command line or terminal. I run the command and this is what I get:
mplayer -nocache dvdnav://1 /media/CDROM /dev/scd1
MPlayer SVN-r1.0~rc3+svn20090426-4.4.3 (C) 2000-2009 MPlayer Team
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.
Playing dvdnav://1.
No stream found to handle url dvdnav://1
Playing /media/CDROM.
File not found: '/media/CDROM'
Failed to open /media/CDROM .....
I went on the forums and they say that some of the packages built to support dvdnav are out of date and that they should be updated. By the way I am running ubuntu 10.04 lucid lynx with lxde as my desktop manager.
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Feb 12, 2010
I'm using 2 cloned disks with CentOs5.3 and I need to be able to control which one is booted. I can specify which disk in the BIOS but after stage 2 it is always running from disk 2. When I have puppy linux on one disk and CentOs on the other I can boot off of either as selected by the system BIOS so the BIOS is not the issue. I think it is how the root option is passed in the kernel command in the grub.conf.
kernel /vmlinuz-2.6.18-128.el5 ro root=/dev/VolGroup00/LogVol00
I think when the OS searches for the /dev/VolGroup00/LogVol00 share is locates 2 since the disks are clones and uses the last one found. On information I have found for the kernel command and the root option it appears CentOs uses it differently. CentOs uses a volume name as specified /dev/VolGroup00/LogVol00 instead of a partition designator /dev/hda2. Is there a different way to specify /dev/VolGroup00/LogVol00 in CentOS for the root option for the kernel command of grub.conf?
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