I am planning on running a script once every five minutes, and the syntax that comes to mind in doing this is the following:
Code:
5 10 15 20 25 30 35 40 45 50 55 * * * * /apps/<script>.pl
Is there a better syntax to use to accomplish this task, or is the above example the way to go?
I am trying to get a process ( SARG access log report tool ) to run every 10 minutes but I cannot get it to work.
Here is the content of the crontab file
______________________________
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
# m h dom mon dow user command
[code]....
I am using Linux 64 bit Redhat Linux. I am trying to setup simple crontab as follow...1. Edited crontab file using crontab -e2. Listed the file once to verify it using crontab -l. This will display as.. 18 5 * * 2-3 ksh $HOME/testScript.sh > $HOME/testscript.out3. Logged in a root and restarted cron deamon using "/etc/init.d/crond restart"As per my understanding now my testScript should start running at 5:18 am Thuesday
View 3 Replies View RelatedIm new to linux, using ubuntu 10.04. I have been playing around with crontab and have no problems scheduling a job which runs a script file containing the following command:
However, when I try to do the following in the script file nothing happens..
Similarly the following doesnt do anything either:
Is there something im missing?
I have a crontab that is supposed to run 2 PHP scripts but they never run.
30 */3 * * * php /var/www/html/mkimages.php
0 */3 * * * php /var/www/html/import_historic_data.php
Both of these files are owned by root, is it a permissions thing? How can I get get cron to run the files?
I put below line in a sh file
#!/bin/bash
HOSTS=172.16.14.1
COUNT=4
[code]...
I'm trying to get myself familiar with bash scripting.I created a script to delete all files and folders in a specific directory, and made an entry in crontab.Crontab will not run the script, but I can run it manually.
View 2 Replies View RelatedI am having a shell script which runs perl jobs.The script is starting the perl jobs when it is executed manually from the command line , but when the same script runs from crontab it is not starting the perl jobs.I have these things in the begining of the script
. /etc/profile
export MDX_HOME=/home/entsms
source $MDX_HOME/.bash_profile
[code]....
that If I am fire a crontab which is running myScriptThe crontab is runningNow if I change the source code of myScriptDo I need to restart the crontab, to take into effect mychanges Ie I want in the existing crontab to take my updated script
View 2 Replies View RelatedFirst, I'm trying to cross compile mono 2.6.4 so that it will run on Freescale Embedded Linux for a PowerPC CPU. My host machine is running Fedora 13 on an x86. Freescale provides a copy of the Linux Target Image Builder (LTIB) that has been pre-configured for the particular board I'm using, and LTIB seems to be able to help with the cross compilation of other stuff--you can add in your own packages to be built and included in your newly-built Linux image.
Mono depends on pkg-config and glib-2, so I have selected them in the LTIB package selection config. I've also added a new package for mono that builds mono-2.6.4 from the source tar (after the other deps have also been built).
I'm having a problem getting the glib-2.24.0 package libraries created. Basically they appear to build and link ok, but then libtool runs and errors out claiming it has a syntax error! (numerous wths followed...)
Here is LTIB's temporary build script for only the glib2 package:
Code:
Here is the output when building the glib2 package (configure + make):
Code:
Build path taken because: directory build, build key set, no prebuilt rpm,
is it possible disabling a crontab job without deleting the crontab description entry (by crontab -e)?I could also accept to change the entry itself. Now it's:0 0 * * 0-6 /home/me/cron/script.csh
View 4 Replies View RelatedWhen ever i open vim, i get the error that the following error: E484: Can't open file/abcd/configFiles/vim/syntax/syntax.vim There was a .vimrc file in my home folder that i have removed.
Still i keep getting the same error. Presently in my home folder there is no .gvimrc or .vimrc file.
But still i keep getting the same error. I am not too sure where this file is mentioned.
Background info: The SHELL has been changed from tcsh to bash Earlier i had created a .vimrc file in tcsh, i have removed the .vimrc in bash SHELL.
I'm using mencoder to capture audio from a Encore ENLTV-FM3 video capture device. I have recently noticed that, since one week ago, when the machine was forcibly restarted due to a power outage, all recordings are slightly pitched, they play back slower than they should.
I narrowed down the problem to the following command line:
$ time mencoder -really-quiet -tv driver=v4l2:device=/dev/video1:chanlist=us-cable:audiorate=32000:alsa:adevice=hw.1:input=0:amode=1:normid=11 -endpos 00:10:00 -ovc copy -oac pcm -of rawaudio -o test-32000.wav tv://69
real 9m54.886s
user 0m5.536s
sys 0m1.740s
$ ls -l test-32000.wav
-rw-r--r--@ 1 martin martin 76800000 Mar 15 17:20 test-32000.wav
Somehow, mencode managed to gather precisely 10 minutes worth of raw audio in 9m 55s. That's not physically possible, unless the capture device's A/D converters are "overclocked". I can't think of any other explanation besides hardware failure. Can that be? Could it be that something got burnt during the power outage and now the capture device's internal clock went nuts?
Since the machine's restart, I've also noticed dmesg is flooded with entries like this:
CE: hpet increased min_delta_ns to XXX nsec
Which seem to indicate that the computer's high precision event timer is somehow out of sync. Does this have to do with the audio issue? Can it be that the audio converter's sample rate is linked to the HPET? I'm totally lost here. Has anyone bumped into something similar?
I have a problem using crontab. I have a C file which invokes a linux command. I want to execute the file using crontab. Its like whenever the system boots up and contents gets loads i want to execute this script. The problem is I don't know how to run the script using crontab. For eg if the file is present under /home/user/first.c . In order to execute this script whenever system starts wat wil be my command
View 7 Replies View RelatedCode...
I opened "crontab -e" in the Terminal and in nano I copied and pasted the first line of this copied script, leaving all the notated lines out. Each time I manually run changer by clicking and selecting "Run" it changes my Wallpaper but this does not happen automatically no matter how many times I reboot.
I have the following set up in my crontab:
Code:
# crontab -l
# m h dom mon dow command
*/5 * * * * /usr/bin/perl /usr/local/bin/perl/managed_arp_data.pl >> /var/log/arpdb.log
*/5 * * * * /usr/bin/perl /usr/local/bin/perl/infoblox_fixed_sync.pl >> /var/log/crossref.log
00 23 * * * /usr/bin/perl /usr/local/bin/perl/infoblox_host_sync.pl >> /var/log/host_sync.log
0 * * * * /usr/bin/perl /usr/local/bin/perl/infoblox_excl_sync.pl >> /var/log/excl_sync.log
None of these jobs is apparently running, however they did run on the 31st (yesterday), but not on the 30th or any other day during the last 10 days that I have logs for. I think I've set cron to run at log level 1, but I don't know where that log goes, I don't see anything like /var/log/cron
So, couple questions:
* If I do something like "sudo -s" to get a root prompt and then do a "crontab -e", which user does that crontab get executed as?
* Where should I look for cron logs?
* Anyone know why a job would run on the 31st, but not any other day?
Crontab Script Not Running?
View 4 Replies View RelatedCron seems to be running the script below (According to /var/log/syslog) but I'm not receiving the email it should send. This does work when I invoke it manually. checkraid (-rwxr-xr-x 1 root root)
Code:
#!/bin/bash
echo `/sbin/dmraid -s > /etc/check-raid/check_state`
index=0
while read line; do
[Code]...
I'm using crontab to start and stop music playback (its like start and end of a brake in school). The problem is that some of the entries should be run on even weeks and some on odd.
exp:
This should be played on even weeks
00 08 * * * audacious -p
10 08 * * * audacious -u
and this on odd
05 08 * * * audacious -p
15 08 * * * audacious -u
There are about 20 entries for even and 20 for odd. I found here on the forum that maybe this should work but for it is not working for me
00 08 * * * [[ $(expr `date +\%W` \% 2) = 0 ]] && audacious -p
If I put it like that its not working at all
Does LuckyBackup use different syntax when running commands?
View 1 Replies View RelatedI am a Novell (now defunct) CNE tring to learn Linux and am having a lot of trouble finding out where the WB 6-6 is wrong in the syntax for adding local4... the the syslog-ng config file. In the instructions there are discrepancies between commas and simi-comma, they are both in the statements in no particular order. there is no pattern to them. Here is what the book shows:
filter f_local4debug { level(debug) and facility(local4); };
When I try to input this in the Gnome terminal window to try and find out where it goes wrong I get the following: -bash: syntax error near unexpected token "(" If I can get the correct syntax I belive I can use the info to get past the rest of this portion of the lesson. I am desperate to learn Linux as the only jobs out there for a Novell CNE are migrations to MS, which really sucks, since MS really really sucks.
Yes I have tried exporting my paths and variables aab still will not run my script. 'm sure I am doing something wrong.I have a shell script which runs a jar file. This is not working correctly. After reading around I have read this is commonly due to incorrect paths due to cron running via it's own shell instance and therefore does not have the same preferences setup as my profile does.here is what my script looks like today after several modifications:
Code:
#!/bin/bash --
. /root/.bash_profile
[code]...
I have a shell script which is configured for the user. The main task of the shell script is to email certain user with a particular result.
The shell script runs perfectly when run from a Konsole terminal and configured through a crontab generates empty entries.
Below is my crontab for my user.
Code:
# DO NOT EDIT THIS FILE - edit the master and reinstall.
# (/tmp/crontab.XXXXSyNyp1 installed on Wed Jan 6 09:14:14 2010)
# (Cron version V5.0 -- $Id: crontab.c,v 1.12 2004/01/23 18:56:42 vixie Exp $)
#!/bin/bash
[Code].....
I have an ubuntu 10.10 server and want to run a script on it to check if a process is running. If it is not running, it will start the process and also write into a log file.
When running the script i get the following error message:
syntax error near unexpected token `else'
Here is my script.
Still having problems with the locked black screen freezing a couple of minutes in. I've done everything anyone has recommended on the other threads but nothing and it is driving me crazy. Please, does anyone have any ideas? I tried to install xfce4 but of course, screen froze and went black before I could fully download the software! I've tried the nomodeset but can't save it before doing a reboot (then went via terminal as quick as I could on start up to edit grub, but then... yes, it fell over and froze before I could hit save). So I'm giving this a lot of time I really don't have... such a shame I upgraded, 9.10 was working so well... alternatively,
View 1 Replies View RelatedI'm running a pretty heavy-weight process (Rails tests) that involves several worker processes, in an effort to parallelize the runs. To measure the performance impacts, I run hdparm -T /dev/sda to give me the cached read performance. Note that the disk IO is not being measured, but the disk cache IO is. It works very well on my work machine (8-core Mac Pro running Ubuntu with 8GB of RAM).
The baseline is:
honk4:~ $ sudo hdparm -T /dev/sda
/dev/sda:
Timing cached reads: 13224 MB in 2.00 seconds = 6616.86 MB/sec
In the middle of the test run:
honk4:~ $ sudo hdparm -T /dev/sda
[Code]...
I'm trying to use emacs in the auctex mode. But Flymake complains about something I could not understand. This is the error it shows whenever I open a tex file.
Code:
Flymake:Configuration error has occured while running (texify --pdf --tex-option=-c-style-errors PATH_TO_FILE_DIRECTORY/FILE_flymake.tex).
Flymake will be switched OFF.
I have texify installed on my system. I also tried suggestions in the emacs wiki on FlymakeTex, added the following lines in my .emacs file:
Code:
(defun flymake-get-tex-args (file-name)
(list "pdflatex" (list "-file-line-error" "-draftmode"
"-interaction=nonstopmode" file-name)))
How do I stop this msg and use flymake.
Previously I had posted a question on how to make it run every 7 minutes between 7 and and 11pm.However now I found out what I really need is every 7 minuted between 7:30 and 11pm BUT it has to be every 7 minutes, it cannot reset itself on the top of every hour, so the */7 wont work.How can it that it will be every 7 minutes, so it will go at 7:30, 37,44,51, 58, 8:05, etc..
View 4 Replies View RelatedI upgraded to F13 this week. And autologin just sits with autologin present, but I have to click the autologin (rather than a user name) and then click again to actually login. That's not so "auto" anymore if I can't push the power button and come back in x minutes with everything and running.
I had this in my /etc/gdm/custom.conf
TimedLoginEnable=true
TimedLogin=marty
TimedLoginDelay=8
What changed and what do I need to do now to get autologin to get off it's ass and log me in?
What is the difference between the crontab located in /etc/crontab and the crontab that can be edited using crontab -e?
View 2 Replies View Related