Server :: Each Command Takes For Ever To Execute
Sep 12, 2010
I am trying to use a freshly installed kubuntu 10.04.1 LTS and am having major problems with delays in command execution. The box worked fine after installation. I then brought it to the client and it was fine for another day or so. Now, most of the commands I run take up to five minutes to execute. An 'ls' or 'top' will run straight away but and 'ssh','rm' or 'sudo apt-get' will just sit there for ever:
[Code]...
A reboot changed nothing. The shutdown was immediate so 'shutdown' is another command that works properly. The load of the box is '0', I used team viewer to see if I got the same problem from the LAN side rather than the WAN. It's the same. I thought it might have been the disks that had spinned down but it would have sped up after the ssh connection. After further analysis, it looks like this could be an authentication problem. The problem shows once the ssh password is validated and when we use sudo. Could this be related to the installation of samba3?
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Oct 13, 2009
I am running Centos 5.3. I ran no updates, performed no installs, nor changed any configuration immediately prior to this issue. My problem is this: when I run the command startx (default runlevel 3), it is a long time (5-10 minutes) before Gnome startx, and once it does start applications will not run. Also, when I try to use sudo (from any environment, even ssh), it is a long time (5-10) before the command is executed.
I cannot say for sure, but it seems like this is an intermittent problem. Sometimes X takes a long time to start, but once it starts it will launch programs. Sometimes X takes a long time to launch, but once it starts it will only launch certain programs. Though presently X always takes a long time to start, and I cannot successfully launch any programs.
A while back a had a similar problem to this (x taking long time to start, sudo taking long time to execute) and it ended up being a DNS problem. Unfortunately, I cannot remember exactly what it was and I stupidly did not document it. Maybe this is also DNS related, I don't know.
I don't know what log files to look at for problems with X, Gnome, and sudo taking a long time to start.
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Dec 1, 2008
Is there a way to execute some command and then after the command completes utomatically reboot the system and then after the system reboots execute another command ? For example look at the sequence shown below(1) Execute command-1(2) After the command-1 in (1) is completed,reboot the system (3) Execute command-2(4) After execution of command-2 reboot the sytemIs there a way i can automate this process so that i need not reboot the system manually
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Feb 25, 2011
I am trying to write a perl script which will give an interactive session to a user to execute command on the server. I have written a small script to do this :
Code: !/usr/bin/perl -w
use strict;
use Net::SSH::Perl;
my $host = '192.168.1.1';
my $username = 'user';
my $login_passwd = 'test123';
[Code]...
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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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May 30, 2011
i have another problem with my server I'm unable to execute the command hpacucli. the error comes as below ipf122root#hpacucli HP Array Configuration Utility CLI 8.10-2.0 Detecting Controllers... Error: Another instance of ACU is already running (possibly a service). Please terminate the ACU application before running the ACU CLI. Press ENTER to exit.
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Mar 19, 2010
I have a big bash script ,its goal is to download movie one by one . But I often get into a problem: if this script is executed in cron,it often does not completely download the movie.I often find the movies it downloaded are several KB while the movie is actually 20MB.So I think it is because it did not wait for finishing one task ,and jump to download another.So I want to know ,is there a way to force the bash script to wait until one movie downloaded completely and then start to download another movie ?
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Aug 19, 2009
I have a script which builds a project and then runs junit tests. However, if the build fails, the junit tests fail with the same error message.Therefore the command which runs the junit tests should only be executed if the build was successful.
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Jul 10, 2010
I learned a little bit about this command (du) to find out how much space a directory takes up but what I want to know is can you tell it to exclude directories?For instance, I wanted to know how large the / directory is on my old suse10 drive but I want to exclude /home (/home was not a separate partition on that drive).
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Oct 3, 2010
I was writing a bash script which attached to another script. The issue I'm having is, when I use the exit command written in the script, it takes me back to the first script. How do I disable this?
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Mar 12, 2010
What's the command to know how much disk space a specific package takes?
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Nov 28, 2010
This is the following exercise:Adapt this to write a script storedList that takes two command line parameters. The first parameter is the name of a directory, the second parameter is the name of a directory should be store i.e# ./storeList.sh /etc etcFilesListHow can you refer to the variables that represent the words passed in on the command line?
My Script's file:
#!/bin/bash
if test $# == 2
[code]...
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Dec 14, 2010
How can i write a shell script that takes a file path as command-line arguments.and it should report whether the path denotes a file or a directory.
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May 3, 2010
Is it possible to allow a group/user to execute a command, where one of the parameters of the command is a group as well? example that does not work as intended:
Code:
Cmnd_alias SU=/bin/su -l %group1 This example works sortof, it treats the "%group1" literally. I know I can list out the "/bin/su -l <eachuser>", but as you can imagine that is impractical. In this example, I want people in group2(not shown for brevity sake) to be able to su to someone in group1
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May 4, 2010
i have one executable file (filename : "tet"). i can run this command in other linux os like: "fedora, cent os" using command "./tet", and it's working fine. but this command not working in debian. i don't know how to execute this file.
1. i have tried with 755 and 777 permission
2. i have tried "home/fullpath/tet"
3. i have tried "/tet"
4. i have tried "./home/fullpath/tet"
but above all commands are failed. to run this execute file
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Nov 29, 2010
I would like to have an user that can execute al command with sudo.I configured sudo with yast2 and in the sudoers file actually there is a line with:USER ALL = (ALL) ALLWhere user is my username.But I can't use some command like ifconfig becouse it say that it can't find the command. I think that this is becouse of path, but shouldn't i get root path using sudo?
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Aug 27, 2010
I want a quick and simple way to execute a command whenever a file changes. I want something very simple, something I will leave running on a terminal and close it whenever I'm finished working with that file. Currently, I'm using this: while read; do ./myfile.py ; done And then I need to go to that terminal and press Enter, whenever I save that file on my editor. What I want is something like this: while sleep_until_file_has_changed myfile.py ; do ./myfile.py ; done
Or any other solution as easy as that. BTW: I'm using Vim, and I know I can add an autocommand to run something on BufWrite, but this is not the kind of solution I want now. Update: I want something simple, discardable if possible. What's more, I want something to run in a terminal because I want to see the program output (I want to see error messages).
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Oct 3, 2010
How do I set up SSH so I don't have to type my password? i execute the following command ssh -l admin hostname command but each time i execute it, it ask me to enter password.how i can give it password as default because i'm going to put in bash file ?
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May 4, 2011
I am working in a CentOS environment with numerous CentOS machines. Currently there are multiple developers that each have their own login/home directory and then for various admin tasks we all share a single super user account.
The problem
I have a number of aliases, variables, functions, and settings that exist in my personal login's .bash_profile. None of these are available in the shared super user's .bash_profile. My current work around is that everytime I sudo in as the super user and I re-execute my .bash_profile from my personal user's home directory. I am not allowed to edit the init stuff for the super user
The Question
Is there any way I can automate my sudo sequence such that it will execute my personal .bash_profile after I've executed sudo without requiring me to edit the super user's bash init stuff?
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Sep 14, 2010
I want to start my Ubuntu 10.04 and without logging in I need a command started. The command is setxkbmap .... So, I will not put the command in my .profile, nor in my .bashrc, because I am not going to login.
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Dec 25, 2010
I have linux as my host OS and windows as my guest OS on vmware. is there any possible way to execute linux commands from windows the guest OS? for example create new files, view files, ssh, check processes running... etc.
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Sep 14, 2010
I want to start my Ubuntu 10.04 and without logging in I need a command started. The command is setxkbmap .... So, I will not put the command in my .profile, nor in my .bashrc, because I am not going to login.
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Jun 30, 2011
When i click in one icon (for example), this icon executes "java -jar ...". In another words: Make a .exe on linux.
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Jul 29, 2010
Top: error while loading shared libraries: libproc.so.2.0.6: cannot open shared object. I am not able to execute top and ps command.
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Jan 6, 2010
Is there a way to execute top command once and exit...i.e. stop refreshing window and continue console without pressing 'q' or 'ctrl+c'...
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Mar 25, 2010
My problem is:
sub init() {
$Test->description("Establishing the connection to the client");
eval {
$Host = host($CLIENT) or die($@);
$Conn = connect("#ssh") or die "Client connection Failed" . $@;
};
if ($@) {
$Log->error("Unable to instantiate the Objects for the Test" .
[Code]...
Here I'm trying to connect windows machine using connect object which is working fine. But when I tried to execute the command on Windows machine from Linux machine by using:
[Code]...
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Jun 15, 2011
I am having trouble getting the while loop to execute in the ssh command:ssh $USERID@serverX "while read line do echo $line done<$list_dir/cost_feed.lst.old"Error:bash: -c: line 1: syntax error: unexpected end of fileI have managed to use simpler commands with ssh like:ssh $USERID@serverX "pwd; cp x y"I expect that I need to add some combination of escape characters or semicolons
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Jan 21, 2011
I am trying to execute a limux command in c program using system system call, but the dont want it to dump the output or error logs on the terminal.
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Jan 13, 2011
I am executing a run command in a script after that i need to copy files into a directory which are the inputs for the run,on run a new shell is created and the remaining commands in the script does not execute,wot should i do to execute the remaining commands in the script??
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Jul 25, 2009
i want to execute iptables command via php. i can run simple command as echo 'iptables -h'; but i can't run ipables -L and i create excutable file (firewall.sh). i can run it on console but not done on php.
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