Fedora :: How Will More Than One Shell Script Cron - Weekly Work

Nov 23, 2010

What would happen if I place more than one shell script in the cron.weekly directory. would they run at the same time?

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Fedora :: Can't Get A Cron Job To Work On 11 Box

Oct 6, 2010

I can't seem to get a cron job to work on my Fedora 11 box. When I check the logs, cron is actually working. In my /etc/crontab I have an entry to run the cron job on my Moodle installation:

30 * * * * wget -q -O /dev/null http://moodle.name.name/moodle/admin/cron.php

when I run crontab -l it is not showing me anything, I am confused

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Fedora :: Weekly Raid-check Never Checks Md1?

Feb 21, 2011

I have three raid volumes, md0, md1, and md2. The weekly raid-check cron always causes md0 and md2 to get checked but never md1.


Volumes md0 and md1 are on the same 8 disks. Volume md0 is a small raid1 across all 8 disks for boot and md1 is a raid5 that occupies the rest of those 8 disks. Volume md2 is a raid5 on a separate set of 6 drives. When I check /var/log/messages* I see that every Sunday md0 and md2 get checked but md1 is never checked. However, when I run 99-raid-check manually, all three volumes get checked. There is clearly something different between how crond runs that script and how I run it, but I can't imagine what that would be.

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Ubuntu :: Scp From Shell Script Using Cron

Oct 12, 2010

I have a script that I would like to run using 'cron'. I want to use 'scp' to transfer files from one machine to another. I have set up the SSH keys on both machines. When I run the script from bash terminal, it works flawlessly. But when I schedule a 'cron' job to run the same script, 'scp' does not transfer the files.

'Return value' is 0 when the script is run from bash directly. But when it runs from 'cron', the 'Return value' is 1. That means, surely, that 'scp' is throwing an error. I don't know which error is being encountered. Could anybody let me know how to make it work?

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Ubuntu :: Shell Script Not Working In Cron

Jan 20, 2010

I'm creating a script all worked fine in the command line. But not work in the cron. Below you could see the script


So far I found when I use corn following part not working, nothing goes to the processedfiles file. ls -l /var/lct/mou2/processed | grep $TODAY | awk '{print " " $8}' > /home/trans/mou/processedfiles ls -l /var/lct/mou2/processed | grep $YESTERDAY | awk '{print " " $8}' >> /home/trans/mou/processedfiles This work perfect in command line. Corn job and command line use by the same user.

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Ubuntu :: Write A Shell Script To Add Job To Cron?

Apr 1, 2011

I write a shell script below to add a job to cron.

touch date.cron
echo '*/3 * * * * /usr/sbin/ntpdate' >date.cron


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General :: Running Shell Scripts With Cron

Sep 24, 2009

I've been having a bit of trouble running a shell script with cron. A friend of mine does a community radio show and the station has a live stream but no podcasts, so I've set up a script to record the stream and encode it as an mp3 while I'm away using mplayer and lame -that's what I'm trying to do anyway.

Here's the script, but it doesn't seem to run- at least, I don't see any of the files it should be outputing, would they be in the cron.weekly directory (where I have the script) or in my home directory?

#This is a script to record 'The Unnamed Show'

#it will record the show from the live stream, then convert the output #to an MP3

#Finally, it will delete any files no longer required HOME=/home/byron/

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Software :: Running A Shell Script From Cron ?

Jul 1, 2010

Im having some difficulties with running a shell script from cron which I am unable to resolve for almost 2 days now.

For testing purposes, im trying this with simple shell script test.sh with chmod 777

This script is located at /var
When I type /var/test.sh it runs perfectly and prints asdasdasd
When I type /var/test.sh > /home/log it writes asdasdasd to /home/log - works

The problem occurs whenever I add it as a cron job to var/spool/cron/crontab/root

There is: 11 10 * * * /var/test.sh > /home/log - however, at 10:11 there is no file at /home/log

Cron as a service works, forexample, every day at 4 am it makes this backup sshpass -p xxxx rsync -avz -e ssh root@x.x.10.7:/data/backup/ /home/backups/isp_admin


doesnt makes the folder

Where is the catch?

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Programming :: Running Shell Script Using Cron Job

Jul 8, 2011

I am using Shell Script to run my Java program. I have written a Cron job to invoke Shell Script every day at 7pm. Cron job is running every day at 7pm ,but it is not invoking my shellscript and also I am not getting any error message. I am able to run same shell script from cmd propmt using bash, and also I am able to invoke the same script from mainframes Universal command job. Same ShellScript and Same cronjob is working fine in my Dev server. But in my QA server it is not working.

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Ubuntu :: Cron Runs Shell Script - But Only First Line Of It?

May 18, 2010

I have a cron job that runs a shell script. But it only runs the first line of that shell script and not the rest of the file. I'm a little stumped as to why. If I run the shell script manually, it runs and executes every single line as it should. I think I must need some additional syntax to make this run correctly?

Here is the crontab ...

root@kchlinux:~/macs# crontab -l
# m h dom mon dow command


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Ubuntu :: Timestamp Format - Shell Versus Cron Job

Jun 16, 2010

Setup: 10.04 server with "bash" as /bin/sh
When I run "ls -l" in a shell I get the following format:

-rw-r----- 1 syslog adm 0 2010-06-13 06:53 /var/log/user.log
Whereas if "ls -l" executes from a cron job the format is:

-rw-r----- 1 syslog adm 0 Jun 13 06:53 /var/log/user.log
Notice the different time format. Now I could fix this by changing the cron job to

ls -l --time-style=+%Y-%m-%d %H:%M ...
but I'm interested in knowing why this behavior occurs. What's different between the cron job and the shell?

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Ubuntu Servers :: Getting My Shell Script To Run On Cron.daily?

Sep 30, 2010

My backup script works fine after some effort to get it where I wanted it. So the script is fine when I run it.

sudo bash backup.sh

now I have a sym-link to /etc/cron.daily but I do not see any new backups

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Fedora :: No Output From Cron Jobs In /etc/cron.daily

Jan 29, 2011

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.)

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Ubuntu :: Creating Shell Script From Source Code For Cron?

Jan 31, 2010

This is regarding the KDE application Basket:

I want to create a shell script that I can run as a cron job to do automated backups. how to proceed. I have the source code and have pulled out the backup source files. Here is the link for the source code. The download is at the bottom of this page. The backup files can be found in the src folder listed as backup.cpp and backup.h [URL]

If someone can do this, I believe it will make a nice addition to the Basket application for all.

Also I am not running Kubuntu I am running Karmic 9.10 64 bit

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Ubuntu :: Script Fails In Cron But Runs Fine In Regular Shell?

Jul 11, 2011

I have an Ubuntu server running Couch Potato, Sick Beard and Sabnzbdplus. Everything "works" pretty well in a sense that CP and SB push the NZB's to Sabnzbdplus, but Sab crashes regularly (haven't found the solution or the cause for this problem, so if you have some advice regarding that, it's welcome).To counter this problem (Sab crashing) I have a script written which checks if Sab is runnning and if it isn't start it:

bart@Pyro:~$ cat CheckSabRunning.sh


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Fedora :: User Shutdown Not Allowed As Shell Does Not Work Using SSH

Oct 1, 2010

I try to shutdown a box running Fedora (fc12, all updates applied) remotely. From various threats I selected the following way that suits best to my needs: I edited the entry for shutdown in /etc/passwd:
shutdown:x:6:0:shutdown:/sbin:/usr/bin/sudo /sbin/shutdown -h +1

Logging in from a tty with shutdown gives the desired result: The computer does the shutdown. Then I tried the same using sshd and plink:
plink -t -l shutdown -pw xxx

As a result I get:
Using username "shutdown".
Access denied
Access denied
shutdown@'s password:

The /var/log/secure shows the following entry:
Oct 2 00:40:46 rotgschirr sshd[6841]: User shutdown not allowed because shell /usr/bin/sudo /sbin/shutdown -h +1 does not exist
Oct 2 00:40:46 rotgschirr sshd[6846]: input_userauth_request: invalid user shutdown
Oct 2 00:40:46 rotgschirr unix_chkpwd[6847]: password check failed for user (shutdown)
Oct 2 00:40:46 rotgschirr sshd[6841]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=rotgschirr.totes-gebirge user=shutdown
Oct 2 00:40:48 rotgschirr sshd[6841]: Failed password for invalid user shutdown from port 37195 ssh2
Oct 2 00:40:50 rotgschirr sshd[6846]: Connection closed by

Somehow when using ssh the shell /usr/bin/sudo /sbin/shutdown -h +1 cannot be found.

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Ubuntu :: Can't Get Cron To Work

Jan 6, 2010

I've been trying to accomplish this on my own, but I can't seem to figure it out...

All I'm trying to do (for learning purposes) is to get a message to print out to a log file every 5 minutes.

This is on Ubuntu Server 6.06.

Logged in as root ( I know, I know, should have sudo'd, oh well... )

Created a new file with this in it:


Added this line:

( I wasn't sure the proper command to try every 5 minutes, but this is my latest iteration. I also started with just */5, and that didn't seem to work either. )

Saved and exited crontab.

Console reports:


Using command: ps -ef | grep cron


So I waited 10 minutes to be safe.... and saw no log file appear.

I checked this page here: [url]

I wasn't sure what it meant by the PATH= variable they wanted me to set, my /etc/crontab file states:


But I didn't know if it meant there, or in my crontab -e location, so after the first failed attempt, I added the line from that webpage as well to crontab -e:


Waited another 10 minutes to be safe, still nothing.

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Server :: My Cron Job Doesn't Work

Jun 1, 2010

I have a simple cron job that runs every night & I tested this manually by just running the command as root in bash and all worked fine. It took some time but the crob job finished and I got my results emailed to me perfect / as expected.

Here is root's cron job listing:


Now I noticed that I never ever got anything emailed to me the following day so I am wondering if perhaps the Cron daemon doesn't have permissions or has an issue running / executing the command rather than when I test the command as 'root'? When I view my logs, I can see the command being executed and don't see any errors however I don't get email results when Cron runs the job rather than me taking the command and running it manually in Bash...then it works. What am I missing?


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Ubuntu :: Mp3blaster Doesn't Work With Cron

Mar 2, 2010

I have a problem with mp3blaster.

I want cron to act as an alarm clock: first, it plays an mp3 file and then it runs the speech synthesizer festival which tells me to get up and do stuff.

Now, mp3blaster doesn't do anything when I run it from cron, but festival works without problems.

I've found some possible causes for mp3blaster not working through cron. Someone suggested that pulseaudio is not started. This shouldn't be the problem for me, since I don't even have pulseaudio installed, and festival is playing sound without problems...

I don't know what I should do to make it work.

Here is my script - runalarm.sh:


I don't want to include the wakeup text here since it contains profanity.

The mp3 player could be another one too. mp3blaster happens to be the only player I know that is easy to run from console, like this "mp3blaster goodsong.mp3", without and playlist creation or other stuff like that.

I can run the runalarm.sh from SSH console and it works fine, the mp3 starts playing and festival speaks after that. When run from cron, festival starts speaking right away and no mp3 is heard.

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Ubuntu :: Rsync Sh File Don't Work With Cron

Mar 25, 2011

I have a backup sh file that I have been using for a long time. It has always worked. 2 Days back I switched to a different pc and now suddenly the script don't work.If I run it manually in the terminal it works. But when it execute with cron it doesn't copy any files to the backup destination. It starts but doesn't copy anything.Can someone help me as to why it works manually but not with cron ?

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Ubuntu :: Grep Doesn't Work In A Simple Cron Job

Jan 22, 2011

I have a problem with grep in my cron job:

A simple command like this doesn't work


Of corse I have tried with full path like this


Both of this scripts work fine when started from my shell. Unfortunately they don't work when executed from cron job, and I get an empty p.txt file.

Here is my crontab file:


Have any one of you faced this kind of problem before ?

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General :: Cron Job For Testing First System But It Doesn't Work?

Oct 5, 2010

I created a very simple cron job for testing my first Linux system but It doesn't work. After open the crobtab file by typing crontab -e, I put a line like this to send email in every 2 minutes to report disk usage:MAILTO=dan@gmail.com*/2 * * * * du -s /homeI tried to restart cron several times but I still got nothing worked. /etc/init.d/crond restart

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Ubuntu Networking :: Cron Not Work When Trying To Sync With Network Drive?

Oct 25, 2010

Cron refuses to work when trying to sync with a network drive. I am trying to setup a cron job to backup a folder in my home directory ('/home/scratch') to a folder ('home/internet_backup') that is mounted (using nfs) to a network folder. The folder ('home/internet_backup') is mounted correctly to the network folder upon system startup, so this part works.

I created a simple bash file (rsync-shell.1.sh) that looks like this:
# backup the contents of 'scratch' (of 'internet' machine) into '/home/aa/internet_backup/'
# the latter folder ('/home/aa/internet_backup/') is mounted to 'developer' machine
rsync -av --exclude=".*" /home/aa/scratch /home/aa/internet_backup/

When manually running this bash file from my home directory (./rsync-shell.1.sh) everything works, and the contents are written to the destination folder. Yet, instead of running this manually, I wanted this to be executed by Cron every 30 min. so I first chmod +x this file, and then copied it (using sudo) to /root.

I then created the following using 'sudo crontab -e':
# m h dom mon dow command
10 * * * * /root/rsync-shell.1.sh
This is the same bash file illustrated above, yet, it doesn't work (files are not being written to the destination folder).

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General :: When Put This Module To Be Executed Via Cron, It Doenst Work And An Email Is Generated?

Jul 5, 2011

I have installed CPAN module Spreadsheet::WriteExcel, to generate some reports. Now when i execute my perl module from command line. it works fine and generates the excel file. When i put this module to be executed via cron, it doenst work and an email is generated. My entry in cron tab is as follows:2 14 * * * perl /scripts/postpaidRecon/postpaid.plThe email i receive in /var/spool/mail/root for module failure is:

Subject: Cron <root@kblhpw101> perl /scripts/postpaidRecon/postpaid.pl
X-Cron-Env: <SHELL=/bin/sh>
X-Cron-Env: <HOME=/root>


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General :: Weekly Report For Server Setup?

Nov 4, 2010

I have setup a cluster.Which is basically a few Virtual Machines running and the applications running in them which are accessible on internet. He has asked me to send him a weekly report of this work. I am sys admin guy who understands ssh,telnet,ftp,tftp,TCP I am not able to understand what should I write in report.Because all the servers are perfectly running and applications are also running on top of them and I am done with this.So basically from my part I do not have any ssh or ftp to write in a report like this.Can some one give me a link if there is some sample report that I should send.I am not able to understand what do I need to Google for the same.

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General :: AutoMySQLBackup Weekly Backup Modification?

May 4, 2011

I'm using AutoMySQLBackup [URL] script to backup mysql db from several server.I need little help from you who is guru in scripting. I would like to take weekly backup after every 1 week and not every week. i.e. on every 14 days. This is the weekly backup portion of the script:


# Weekly Backup
if [ ${DNOW} = ${DOWEEKLY} ]; then
${ECHO} Weekly Backup of Database ( ${DB} )


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Server :: Weekly Once Resync Is Starting Itself In RAID1

Jul 25, 2011

how can I stop resyncing permenently & how can I check whether the normal sata HDDs can support RAID before/after buying HDDs. Because on every saturday or sunday resync is starting itself even there is no entry about resncing in crontab. But if I run "cat /proc/mdstat" it is showing RAID1 is perfect. see the below output

#cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 hdb1[1] hda1[0]
513984 blocks [2/2] [UU]


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Fedora Hardware :: Wiki Page On GNOME Or List Which Graphics Cards Work On 15 With GNOME Shell?

May 26, 2011

is there some wiki page on GNOME or Fedora that list which graphics cards work without problems on Fedora 15 with GNOME Shell? I have tried 3 older cards and they all failed, so I would like to share this info with others so people know which cards to avoid if they want to use full features of GNOME 3 via GNOME Shell.

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Ubuntu :: Setting Up A Cron Job Creates A Tunnel To Remote Machine To Work Correctly On 9.10?

Jan 12, 2010

I am having some trouble setting up a cron job that creates a tunnel to my remote machine to work correctly on Ubuntu 9.10. The setup looks like the following:

(1) myscript.sh (executable)
ssh -2 -x -i /home/user/.ssh/id_rsa.prv -L 3128:myremotemachine:3128 myaccount@myremotemachine
(2) crontab -e, added the following lines:


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Ubuntu Installation :: After Weekly Update Skype Will Not Load

Nov 30, 2010

I let the update manager complete the weekly update and after restarting, Skype will not load. I attempted to troubleshooting Skype found in the Ubuntu documentation, but it does not appear valid for Ubuntu 10.10 amd-64. [URL] fails to start

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