I've written a script that restarts the server of a game I play, giving you a 15 second notice. If I manually start this script, it works fine. invalid option say Server is restarting in 15 seconds-ne and it says this for every line in the rest of the script (substituting the correct phrases of course, but always starting at the "say" and ending with the "-ne")
View 9 RepliesI have centos 5.5 (64 bit) on server which is hosted in remote data center. I just noticed that crontab is not installed. Server don't have internet access so yum won't work. Is there any way I can install cron manually by installing RPM? If yes from where I can get cron RPMs ?
View 2 Replies View RelatedI am setting up a cron job on my DD-WRT router to execute a WOL command, and would like to know if what I have is correct.
Format:
Execute @ 12:00 on Wed, Thur, Fri, Sat every month/Yr
0 12 * * 2345 root /usr/sbin/wol -i 192.168.1.255 00:00:00:00:00:00
One of my script don't execute itself using crontab although it works manually.
=> /var/log/cron
/var/log/cron show these 2 lignes at sheduled time
May 26 09:59:01 COMPUTER crond[26439]: (root) CMD (/usr/local/bin/script)
[code]....
I cannot debug or resolve on a Fedora Core 8 machine. The problem exists in a Fedora 11 machine as well. I have a script that changes the default gw (I have 2 providers) if the link is down. The script runs very well when I call it from the terminal, however when I try to set a cron job to run it, it hangs in the middle of the script. I don't have any idea of what is happening, or how to debug but it seems to hang when running a command like: route add default gw [ip]
I can publish the script here, but it's fair an simple and the algorithm is:
- start
- Find out the current GW
- Find out the alternative GW
- Ping the current GW and capture the result
- if we have a fail then change the default gw to the alternative Gw and send an email, else do nothing
- end
The cron job is run as root, so I don't think this is a rights problem.
I was thinking of creating a little audio alarm clock with an mp3 and mpg123 to play a song from a cron job each day. How do you specify the time of day to execute a cron job?
View 4 Replies View RelatedCan anyone tell me how i change the default domain name for cron?everything i cron runs it emails from and to user@com.com
this leaves me with a massive list of failed mails in postfix.i have mailto on my main crontab but i cant do it on all of them.
It seems that cron is not upgrading my Ubuntu 8.04 LTS Server, no GUI installed. I changed /etc/crontab and watched apt running:
Code:
ps -A | grep apt
showed it for a long time,
Code:
sudo tcpdump tcp
showed communication with canonical sites,
but:
Code:
top
did not show any apt using CPU
[code].....
I put in my cron entries to run my backup script which rsyncs my data to my 2nd drive, however on a hunch I checked my backup drive which mounts automatically via fstab and I realize it had not ran in a while. I checked cron and there were no entries for it. I got to wondering if I should ever be worried about a cron update coming down and over-writing my existing cron file with the backup entries in it to run.
View 2 Replies View RelatedIs there a command that can tell me which binary actually executes for some program name? "whereis" seems to do something different.
Specifically, I am trying to hunt down and kill a python 2.6 installation that just won't die.
whereis just seems to be returning anything with "python" in its name, but I want to know which binary thinks it is python 2.6.5. (By the way, I've tried all the above manually, and it isn't any of them)
I have added some executable scripts to /etc/cron.daily but don't get the stdout/stderr output from them as mail (or anywhere else I have found). At least one of them is running (because I can see that it has added a file to the disk).
The peculiar thing is that I do get the output from /etc/cron.daily/0logwatch (part of the logwatch package) as an email each day.
The MAILTO line in /etc/crontab is "MAILTO=root" (unchanged from default). Same for /etc/anacrontab.
I do have an alias at the end of /etc/aliases which redirects root's mail to my own account, but this alias works fine for mail I send manually. (It also appears to work fine for the output from the file /etc/cron.daily/0logwatch.)
I have set up a cron in /var/spool/cron/root
*/15 * * * * /usr/bin/phplist.sh
I can see in /var/log/cron that it is running every 15 minutes but it has no effect. It is not doing the commands in the bash script.
If I run /usr/bin/phplist.sh right in the shell it works great.
I'm having trouble getting conky to boot friendly-like with the gwm. If I just set conky as a start up program, it floats above other windows, it seems to have loaded before the desktop actually did. So I googled it and found that many people use the conky shell scripts to make it sleep until the desktop load. I created one, made it executable, and restarted to see the effect and found that conky never launched at all (not visible, no running process).
Here is my startup shell script for conky:
Code:
#!/bin/bash
sleep 10 && conky;
This is how it should look if working properly. If I launch conky after login, it looks like this every time. [URL]. This is how it looks if I simply set it to open upon startup with no script. [URL]. If I try to open it with the script, I simply never see anything in conkys place. It seems like the script never executes. I've tried setting longer and shorter sleep times, but I never see so much as a single instance of conky running.
I completely switched to Ubuntu 6 months ago. I kept my secondary sata hd as ntfs for a while but started having permission problems. I switched it to ext4 and that worked for a while but then it started having permission problems again. Specifically, I can't execute anything on that hd drive. I converted it to ext2 and it still didn't help. I have 2 executable modules that I moved up to the root directory to make this simple and they look like this:
tom@tom-desktop:/media/sda1$ ls -l
total 3088
-rwxr-xr-x 1 tom tom 3099451 2011-04-23 16:36 bochs
-rwxr-xr-x 1 tom tom 26064 2010-09-11 08:48 bzip2
[Code]...
Is my vixie-cron broken? i have "0-59 * * * * root /usr/sbin/logrotate /etc/logrotate.conf" but it is not running in /etc/cron.d.
Code:
I have a computer with a trackpad and a touchscreen. I want to run unclutter if I use the touchscreen, and kill it when I use the trackpad or a USB mouse.
The I'm pretty sure the touchscreen is /dev/input/mouse0, and the trackpad is /dev/input/mouse1
I have a general idea of how this should work, but no idea what tools and commands to use to implement it.
In Ubuntu 10.10 I want to have a shell script execute on bootup after everything else is done, *just* before the computer gets to and sits at the login screen. I find this easy in CentOS/Red Hat. If I place my scripts in /etc/inittab near the end, right after the mingettys, that is PERFECT. But Ubuntu has no /etc/inittab and I have spent the past few days going over and over and OVER more info about Upstart and the rcX scripts and I can't seem to get it. Anything I place in an rcX script runs too late, only after the machine is past the login screen i.e. a human must log in first. And I would rather not have to enable auto-login. I've heard that Ubuntu will honor an /etc/inittab file if you create one, and it does, but that too runs too late, only after a human has logged in. Can anyone tell me where a script should be placed in Ubuntu to execute after all system initialization is done, but before human interaction is required?
View 3 Replies View RelatedI have a hard to reproduce (seen a couple times in a month) issue where my program seems like it is hung (not increasing in cputime), however, it is in the runnable state and never gets to run. The cpus are 99% idle according to vmstat and the load is 5 (which is equal to the number of threads in my program that are in the R state) according to ps, and there are no processes on the system in the 'D' state. The other major oddity is that one of the migration threads has a cputime usage almost equal to the uptime of the system. Typically migration threads have a cputime on the order of seconds across hundreds of days of uptime, but in this case the migration thread has DAYS of cputime according to ps.
The last time this happened, I went around saving as much /proc/X information that I could into logs for referring to later, before I had to reboot the box to get it running back to normal. (because in this state, a kill -9 is not heeded by my program)Does anyone have any idea what could cause this? I am not sure if this is a scheduling bug or a bug in my program (the likelier case).I have a wealth of logs to look through if anyone can suggest something specific to look for.
I want to use a desktop icon shortcut that essentially does this...
Is there a way I can do this? I don't really want to create an alias because I just want it to be an icon I double click to do all of this. But if I have to create an alias in which it does these ocmmands then I use the shortcut to terminal... then it types the alias that is fine also.
even though this is a simple task I always have problems to do this.I want to execute the following#!/bin/bashjava -jar JabRef-2.6.jaror in other words this is the command I use in konsole to make the application to launch.Then usully I try to create a desktop in the icon either by using a. create link to locationorb. create link to application.where I select as file the file myfile.sh that contains the two lines of code I posted above (see again below)
"#!/bin/bashjava -jar JabRef-2.6.jar"I do this file executable by using the chmod +x.Sometimes I think this works while others like now I only receive the cursor bouncing for sometime before it dissapears
I am trying to create a script that creates a vector and displays it. I used the command inivec but it didn't work.
[code]...
How do I make it so the terminal executes mi script to create a vector. I know MV is the name and the output should be aa aa aa, but nothing?
Iv got an assignment to complete and I'm stuck at the basic level.
A part of the assigned problem is :
The main process will read the file, and will create N number of child processes (Where N is taken as input) as early as possible before all the children starts its execution. Before creation of each child, the main process should read the file to store all the required data in then corresponding data structure. Child processes should not read the file for getting their information.
As far as my knowledge about this , the child executes before the parent. How do I make the parent not pass the control to it's children before it finishes creating all the children?
I have a logfile which looks like:
tableabc 1786rows
tabledfg 8374rows
tablefhd 726rows
[code].......
Now i have to writ a script which takes this log as input and quesries the DB for each table. So,I want to: input the logfile
start a while loop.So,while read LINE This variable LINE would store the table name by CUT using a delimiter once the table name is ready it makes a connection to DB and queries the table for its rowcount writes the rowcount to an O/P file.
I would like to make a script, where I specify my Cisco devices IP addresses as arguments to the script and then this script automatically logs into every one of them and does "show version" and "exit" in every Cisco device. I have public/private key authentication system with my Cisco devices- thats why I'm using ssh-agent and ssh-add. I did something like this:
Code:
#!/bin/bash
if [ -z $1 ]; then
echo USAGE:
echo "$0 IP1 IP2 IP3 IPn"
[code].......
However, it logs nicely into the first device(I'm able to execute IOS commands in this first Cisco device etc) and then does nothing further.
I centos version 5 installed on server 2, and I want to make a scheduled task that executes a shell script.This script should copy some files and directories from one server to another. I do not use DRBD and Heartbeat.
View 1 Replies View RelatedI am trying to write a script that connects to a server and executes some commands on there. Something like this:
#!/bin/sh
telnet remote_machine
cd /home/some_directory
cat a_file_in_current_directory
Unfortunately after login/password I guess the script doesn't jump past the telnet command, until I exit. What do I need to do to make the script start executing commands in the remote shell?
I would like to a build a CD image (of CentOS 5, x86_64 that loads into memory and boots to the OS without installing anything to hard drives. Then I would like the system to execute a shell script automatically. The shell script will have commands that will control execution.
The goal of this exercise is basically to pre-configure a system (RAID config, BIOS update, etc) automatically using the shell script before installing the OS. I would like the ability to change the shell script as needed and probably repackage the ISO image. I would prefer not to deal with building a source tree to accomplish this. this is something one could do using mkisofs.
i created a /tmp partition amd mounted it like this:" mount -o loop,noexec,nosuid,rw /usr/tmpDSK /tmp"
I know i can't execute things in /tmp now but is there a way to execute only one file and no more???
I'm writing a bash script that executes a few perl scripts. One of the perl scripts that I need to execute requires two arguments with it. The arguments are stored in a txt file, each line contains a hostname and its corresponding IP address separated by a ":" (colon), the txt file looks like this below:
[Code]...
I'm not sure if it's the best way to accomplish this but here it goes. In the bash file, let's call it getHosts.sh, I create an array and assign each line of the file to an element in that array. I then think I need to create a new array where I take the hostname (which is before the ":") separate it from its IP address and place the IP address on a new line just below the hostname (this way I can reference to it like $hostNames[$x] would be the hostname, and $hostNames[$x+1] would be its IP address). So the new array would now look like this below:
[Code]...
I am trying to create a RS232 C program that executes a series of commands down the line to a robot. Everything seems to work fine, except any sequential write to the serial port. At first I thought it was the UART's buffer being filled too fast, but even with a 50 uS delay it still throws the error.
Here is my code:
Code:
#include <termios.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/signal.h>
#include <sys/types.h>
[Code]...