Programming :: Process A Log File On An Hourly Basis But The Log Only Rotates Once A Day?
Oct 26, 2010
I need to process a log file on an hourly basis but the log only rotates once a day.Basically, I am trying to get the difference between the previous file and the current file based on datetime. ie. The new file's datetime events > previous file's datetime events.The first field in the files is datetime.
Code:
2010-10-27 01:57:32,aaa.bbb.ccc.ddd,host1
2010-10-27 01:57:32,aaa.bbb.ccc.ddd,host2
[code]...
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May 25, 2010
What command would I use to clear dns and cache on a hourly basis.
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Mar 25, 2010
I have an rsync script I wrote that I have tested and it works perfectly when I run it manually. Now I am working on a server setup script and I have gotten my setup script to create the rsync script in /etc/cron.hourly and restart crond. To spite the fact that the script is in /etc/cron.hourly and I have restarted crond, the script does not run. With that said, how can I script adding the rsync script to run hourly as a cron job?
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Jan 4, 2011
I have a script can process input text file and find out 3 values called positive, negative, neutral. Now, I have a new input file which contains some text called 'content' and I need to use the above script to get three value positive, negative, neutral for each of this 'content'. The content is text in many lines and bounded by two tags <content> and </content>
The input file could have this format:
<example>
<input>
<id>abcdef</id>
<content> line1
line 2
[Code].....
Do you think that is possible to write that in Linux ? I have the feeling that using Linux with text finding, replacing much shorter and easier(when I have to write long and complicated code in other languages), so really want to learn how to use it from here.
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Jul 9, 2010
I hade created a file with following text entries.
content of fileitems.txt
kdeaccessibility-4.4.92
kdeadmin-4.4.92
kdeartwork-4.4.92
kdebase-4.4.92
How do I read the file one line at a time and so its ready to do something with that line.
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Apr 23, 2010
I am new to shell script and to this form as well, I did try to search for a similar post like mine here, but could not find one.
Here is what I'm trying to do:
I am trying to grep server logs to find a specific string and then capture the time stamp and the value of that grep string in them. The log file prints out messages on per sec basis.
My script is able to grep the server logs for the entire period of my load runs and then outputted it to a .csv file too.
Unfortunately this .csv file is too large to extract it on my PC and to generate graphs as it exceeds the excel limit. I need some help on how to read this .csv file in a shell script and then take an average on per min basis before I can export it out on my desktop and generate graphs for analysis. example of the out in my .csv file:
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Feb 16, 2010
I am working in HP UNIX. I have one process which is running continuously.There is log file generated for the process. I want to take back up of file without loosing any logs after particular interval of time or say file size increases more that 1GB.
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Mar 8, 2011
I need to disable file access (fopen, freopen, open etc) for application which is running under chroot jail and with restrictions (rlimit) via execv. Before that I redirected stdin/out to files within jail. I tried this:
Code:
// Redirect stdin/stdout to files
int fd = open (file_input, O_RDONLY);
if (fd < 0)
fatal_error ("input open failed!");
[Code].....
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Jan 5, 2010
I have been looking around the "interwebz" for a long time and still haven't found anything so here it goes:
A long time ago I installed something on my Fedora Core 3 system that gave me a nice transparent and glossy mouse cursor that would rotate according to direction of movement. In other words if the mouse pointer was going left, it would rotate and point left. It was really nice, but now I can't for the life of me find it...
Any ideas? Pointers? (pun not intended)
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Nov 9, 2010
I have a shell script to identify whether the process is running or not. If the process is not running, then I execute another script file to run my application. Below is my script and saved this script as monitorprocess.sh Code: #!/bin/bash
result=$(ps -ef | grep -v grep | grep "applicationname.sh" | awk '{print $2}')
echo $result
if [ "$result" == "" ];
[code]...
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Mar 31, 2011
Is there any difference in cpu usage for process in init.rc(runs automatic when boot is happened) and manually running process. Will these both have same priority by default...?
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Nov 26, 2008
I tried googling but didn't get any answer for this.I have a process called "abc" and it is running with PID "123".I have a putty session opened with PID "999".I am giving kill -TERM 123 from putty session.My process "abc" before dying it should catch the PID of the terminal which provided TERM signal to it.Is there any way to find this out
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Nov 11, 2010
I've some file with .sh extensions that runs some softwares.Now,how do I stop running that filesI know we run the command ./start_tomcat.sh to start the apache.Is there any command to stop that file/process or is it just kill the process to stop the process
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Jan 8, 2010
one tell me the internal working of kill command. that is how it kills a process internally or from where it picks file to continue its process.
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Nov 9, 2010
I have a shell script to identify whether the process is running or not. If the process is not running, then I execute another script file to run my application. Below is my script and saved this script as monitorprocess.sh
Code:
#!/bin/bash
result=$(ps -ef | grep -v grep | grep "applicationname.sh" | awk '{print $2}')
[code]...
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Jul 10, 2011
So, my mother is out in the deep country and all we can get is Xplornet Satellite internet. They have a fair access policy (FAP) that says they will (and definitely do) throttle your speeds if you download more than 50MB or upload more than 5.5MB in one hour. This restriction resets hourly. As you can imagine, this is fairly limiting, but we have to live with what we have as there are no other options specifically where we live. Right now, I have Conky configured to show the ${totalup wlan0} and ${totaldown wlan0}, but that is per session. In this example, since the computer started, 8.74MB have been downloaded and 1.95MB uploaded. However, this information is somewhat irrelevant as we really only need to know the current usage starting at the top of the hour. Maybe even show the previous hour too.
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Jan 8, 2009
How i can configure an hourly graph on munin?
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May 26, 2010
I messed up when I chose my server for slackpkg updates, I chose one for Slackware13 rather then Slackware13 64. This caused some issues when I accepted the updates. I got a fair bit up and running again, but one thing that seems to be messed up is my cron.hourly scripts. I am not entirely sure what happened, but they are not running.
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Mar 10, 2011
I want to kill parent process after "fork()" method. but if I kill parent process with "exit(0)" method, main() thread is terminated as well so child prosess doesn't work anymore. Is there any way to kill only parent process without affecting to child process?
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
[code]....
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Dec 7, 2009
Consider the following code:
Code:
int main()
{
int i=0;
pid_t pid;
for(i=0;i<2;i++)
[code]....
I get the following output:
Parent: chid_pid=4356 i=0 parent's pid=4355
This is child 4356 i=0
This is child 4357 i=1
[code]....
I can observe instead of two children(as I expect) processes there are three. This is because child process 4356 creates its own child. Why all the messages of the type "This is child X i=Y" are concentrated one under another? How exactly fork works? Is affected by the fact that I have a dual-core processor?
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Apr 16, 2011
I have Compaq Presario CQ62-215DX notebook (laptop) computer with built in image of Windows 7. I use partitioning tool to create partition of 250GB hard drive. I created these partitions as NTFS partition. My issue is after creating partition of 75GB whereby I want to install Ubuntu using ubuntu-10.10-desktop-i386.iso file from dvd drive; I cant install.
I use ext4 file system to install ubuntu and mountpoint is root After user setup it stops at this point:
UBUNTU CRON [9354]: (root) CMD (cd/run-patsreport/etc/cron.hourly)
It doesnt install ubuntu on separate partition. how to install ubuntu on separate logical partition? Windows 7 is in primary partition.
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Sep 28, 2010
i want a process that can operate as both a TCP echo server and a UDP echo server. The process can provide service to many clients at the same time, but involves a single process that does not start up any other threads.
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Aug 16, 2010
I know many apps have their own independent volume controls, but not all do. Is there any way to control this in a similar manner as Windows 7?
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May 19, 2011
inside my Linux I am using virtual box to launch windows xp. I have one shared folder between the operating systems so as to share my files As I can not trust virtual box and windows xp... can you suggest me an easy way to take daily backups of one of the folders I have inside that shared folder?The files are mostly html files so the file size is not so much of a problem (at least I think!)How can I take daily backups so to not lose something?
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Mar 23, 2010
I'm attempting to give a few buddies encrypted storage space through sftp using truecrypt.I have it worked out to the point where the truecrypt volume is automatically mounted when the user logs on, and dismounted when they log off.I would like to restrict each person to their individual home folders. This way, I can control exactly how much space each user is able to use (through the size of the truecrypt volume), while maintaining security through the network due to using SFTP.
I've been looking around, and the only thing I can see is restricting a large group of users to a single directory, this won't work, I need each person to be locked down to their personal home directory.My end goal is to have these volumes "mountable" in Windows through the use of Windows network drives (on a wide network, not through samba on local), or by using expandrive or a similar program. how I can lock these users to their respective home folders?
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May 23, 2010
I'm wondering if it's possible to control what applications are available to certain users on a per user basis.
My motivation:
I have separate logins for audio production and general admin. Under Applications > Sound & Video I have tonnes of audio apps, but as I never use these under my general admin account, there's little reason to list all of them.
how is the applications menu configured? I'm wondering because I'd like to create some custom sections.
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Aug 14, 2010
I am currently doing RHCE. I want to make projects on basis of this.
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Jan 26, 2011
I currently use two laptops: a macbook which dual boots OSX and Ubuntu 10.10 and a Dell Latitude which dual boots Vista and Fedora 14 64bit. I would like to know if it is possible to backup the Hard drive as a whole rather than on a per OS basis. If this is possible a linux program for doing such would be the preferred method as it is common to both machines.
I am open to anything that effectively and reliably backs up both machines respective disks in such a manner which allows for practical restoration. This does not have to be done from one OS though this is my preference.
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Jul 11, 2011
Is there a way in Linux to give a specific application more/less priority for network bandwidth? Something like how nice does for CPU priority.
Context: I'm currently on a very low bandwidth connection (3G dongle). While I'm performing a quite large upgrade using aptitude, it becomes virtually impossible to browse the web since the upgrade download is hogging my Internet connection.
So what I would like to do is somehow decrease the network bandwidth priority of the aptitude process (and all its children) so that it won't use too much bandwidth while another process is using it.
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Mar 25, 2011
I've decided to move this question into a new thread since i haven't received an answer for 3 days. This question was originaly posted here: [URL]... I've already searched in google, however i wasn't able to find an answer that solves my problem... How can i change the umask on a per user basis so that each user can have its own umask to fit his needs? For example: I have four accounts on my system ex.
admin1 : admin,
admin2 : admin,
manager : stuff,
user : user,
-So now I want everything from the admin group to be by default set to 002 (so that every user that is in the admins group can have a full share (-rwx rwx r--) of everything that is created by the admins).
-Then the similar to the above managers shoud have 022 umask.
-And each of the regular users should have 002 or 022 or 077 it is up to the users choice.
I hope that i have provided enough info thorough the example.
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