Crontab and ruby script not working

ruby-talk
1

I have a ruby script that I am trying to set up on a cronjob. I have
tested it both just running it in the normal mode and a test shell mode.

When I am logged in as a normal user or in 'env -i $SHELL --norc' I will
run ruby /home/salinn/dev/ruby/webmail/script.rb and it works in both
environments. Could someone help point me out what I am doing wrong?

My crontab looks like this:

* * * * * ruby /home/salinn/dev/ruby/webmail/script.rb

···

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Posted via http://www.ruby-forum.com/.

2

Have you tried giving the full path to Ruby? /usr/local/bin/ruby or
whatever it is on your machine?

···

On 4 September 2013 14:41, Paul Darragh <lists@ruby-forum.com> wrote:

I have a ruby script that I am trying to set up on a cronjob. I have
tested it both just running it in the normal mode and a test shell mode.

When I am logged in as a normal user or in 'env -i $SHELL --norc' I will
run ruby /home/salinn/dev/ruby/webmail/script.rb and it works in both
environments. Could someone help point me out what I am doing wrong?

My crontab looks like this:

* * * * * ruby /home/salinn/dev/ruby/webmail/script.rb

--
Posted via http://www.ruby-forum.com/\.

3

To make sure it is not an issue with the PATH environment variable
(cron may have its own?), try invoking Ruby with the full path,
e.g. /usr/bin/ruby (you can find out with 'which ruby').

Regards,
Marcus

···

Am 04.09.2013 15:41, schrieb Paul Darragh:

I have a ruby script that I am trying to set up on a cronjob. I have
tested it both just running it in the normal mode and a test shell mode.

When I am logged in as a normal user or in 'env -i $SHELL --norc' I will
run ruby /home/salinn/dev/ruby/webmail/script.rb and it works in both
environments. Could someone help point me out what I am doing wrong?

My crontab looks like this:

* * * * * ruby /home/salinn/dev/ruby/webmail/script.rb

--
GitHub: stomar (Marcus Stollsteimer) · GitHub
PGP: 0x6B3A101A

4

I have tried to give it the specific Path to ruby and loadingin the path
from the profile I am using. It is still not working only when I run it
as a cronjob.

This is what the cronjob now looks like:

PATH="$HOME/bin:$PATH"
* * * * * /usr/bin/ruby /home/salinn/dev/ruby/webmail/script.rb

···

--
Posted via http://www.ruby-forum.com/.

5

Hello,

I have a ruby script that I am trying to set up on a cronjob. I have
tested it both just running it in the normal mode and a test shell mode.

When I am logged in as a normal user or in 'env -i $SHELL --norc' I will
run ruby /home/salinn/dev/ruby/webmail/script.rb and it works in both
environments. Could someone help point me out what I am doing wrong?

My crontab looks like this:

* * * * * ruby /home/salinn/dev/ruby/webmail/script.rb

--
Posted via http://www.ruby-forum.com/\.

This was my crontab at a Gentoo system with fcron (a more powerful solution than cron) but same works for other systems

NOTE: I use 'rvm'

# atmat's crontab configuration
SHELL=/bin/bash
PATH=/home/atma/.rvm/gems/ruby-1.9.3-p0/bin:/home/atma/.rvm/gems/ruby-1.9.3-p0@global/bin:/home/atma/.rvm/rubies/ruby-1.9.3-p0/bin:/home/atma/.rvm/bin:/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/i486-pc-linux-gnu/gcc-bin/4.5.3
RUBYLIB=/home/atma/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1
GEM_HOME='/home/atma/.rvm/gems/ruby-1.9.3-p0'GEM_PATH='/home/atma/.rvm/gems/ruby-1.9.3-p0:/home/atma/.rvm/gems/ruby-1.9.3-p0@global'
RUBYOPT=rubygems

%nightly,mail(no) * 8-9 /home/atma/.rvm/rubies/ruby-1.9.3-p0/bin/ruby /usr/local/bin/morula -s username update

You can get the idea.

Panagiotis (atmosx) Atmatzidis

email: atma@convalesco.org
URL: http://www.convalesco.org
GnuPG ID: 0x1A7BFEC5
gpg --keyserver pgp.mit.edu --recv-keys 1A7BFEC5

···

On 4 Σεπ 2013, at 15:41 , Paul Darragh <lists@ruby-forum.com> wrote:
--
The wise man said: "Never argue with an idiot. They bring you down to their level and beat you with experience."

6

cron uses a very minimal path.
you may need to explicitely set the PATH at the top of your crontab, or
give the full path to any exes that you utilize

···

On Wed, 2013-09-04 at 16:13 +0200, sto.mar@web.de wrote:

Am 04.09.2013 15:41, schrieb Paul Darragh:
> I have a ruby script that I am trying to set up on a cronjob. I have
> tested it both just running it in the normal mode and a test shell mode.
>
> When I am logged in as a normal user or in 'env -i $SHELL --norc' I will
> run ruby /home/salinn/dev/ruby/webmail/script.rb and it works in both
> environments. Could someone help point me out what I am doing wrong?
>
> My crontab looks like this:
>
> * * * * * ruby /home/salinn/dev/ruby/webmail/script.rb

To make sure it is not an issue with the PATH environment variable
(cron may have its own?), try invoking Ruby with the full path,
e.g. /usr/bin/ruby (you can find out with 'which ruby').

Regards,
Marcus

7

Don't use $HOME -- give the full path name

PATH=/path/to/user/home/bin:$PATH

reid

···

On Wed, 2013-09-04 at 18:54 +0200, Paul Darragh wrote:

I have tried to give it the specific Path to ruby and loadingin the path
from the profile I am using. It is still not working only when I run it
as a cronjob.

This is what the cronjob now looks like:

PATH="$HOME/bin:$PATH"
* * * * * /usr/bin/ruby /home/salinn/dev/ruby/webmail/script.rb

8

05 00 * * * /mnt/nfs/dataproc_work/applhome/cadredd/rubybin/rvm_cronit ruby /path/to/somerubyscript.rb "param1" "param2" etc
33 06 * * 1-6 /mnt/nfs/dataproc_work/applhome/cadredd/rubybin/rvm_cronit /path/to/some/shell_script_that_includes_a_call_to_a_ruby_script.sh "param1" "param2" etc

$ cat /home/${user}/bin/rvm_cronit
#!/bin/bash

···

On Wed, 2013-09-04 at 21:00 +0200, Panagiotis Atmatzidis wrote:

Hello,

On 4 Σεπ 2013, at 15:41 , Paul Darragh <lists@ruby-forum.com> wrote:

> I have a ruby script that I am trying to set up on a cronjob. I have
> tested it both just running it in the normal mode and a test shell mode.
>
> When I am logged in as a normal user or in 'env -i $SHELL --norc' I will
> run ruby /home/salinn/dev/ruby/webmail/script.rb and it works in both
> environments. Could someone help point me out what I am doing wrong?
>
> My crontab looks like this:
>
> * * * * * ruby /home/salinn/dev/ruby/webmail/script.rb
>
> --
> Posted via http://www.ruby-forum.com/\.

This was my crontab at a Gentoo system with fcron (a more powerful solution than cron) but same works for other systems

NOTE: I use 'rvm'

# atmat's crontab configuration
SHELL=/bin/bash
PATH=/home/atma/.rvm/gems/ruby-1.9.3-p0/bin:/home/atma/.rvm/gems/ruby-1.9.3-p0@global/bin:/home/atma/.rvm/rubies/ruby-1.9.3-p0/bin:/home/atma/.rvm/bin:/usr/local/bin:/usr/bin:/bin:/opt/bin:/usr/i486-pc-linux-gnu/gcc-bin/4.5.3
RUBYLIB=/home/atma/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1
GEM_HOME='/home/atma/.rvm/gems/ruby-1.9.3-p0'GEM_PATH='/home/atma/.rvm/gems/ruby-1.9.3-p0:/home/atma/.rvm/gems/ruby-1.9.3-p0@global'
RUBYOPT=rubygems

%nightly,mail(no) * 8-9 /home/atma/.rvm/rubies/ruby-1.9.3-p0/bin/ruby /usr/local/bin/morula -s username update

You can get the idea.

Panagiotis (atmosx) Atmatzidis

email: atma@convalesco.org
URL: http://www.convalesco.org
GnuPG ID: 0x1A7BFEC5
gpg --keyserver pgp.mit.edu --recv-keys 1A7BFEC5
--
The wise man said: "Never argue with an idiot. They bring you down to their level and beat you with experience."

###############################################################################
#
lclcmd=`basename $0`
#
if [ "$1" = "-h" ]; then
    Description
fi
minargv=1
if [ $# -lt $minargv ]; then
    echo "Invalid number of parameters specified."
    Description
fi
#
###############################################################################
# set up some standard variables
###############################################################################
#
exitsts=0
#
###############################################################################
# validate parameters
###############################################################################
#
# N/A
#
###############################################################################
# run the job
###############################################################################
#
cd /home/${user}
. /home/${user}/.profile
envfile=`/usr/local/rvm/bin/rvm env --path`
. $envfile
#
$*
cmdsts=$?
if [ $cmdsts -ne 0 ]; then
    exitsts=1
    echo "cronit: ERROR"
    echo "quitting $lclcmd"; exit $exitsts
fi
#
exit $exitsts

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9

"It isn't working" isn't really very descriptive. What errors are you getting?

···

On Sep 4, 2013, at 11:54 AM, Paul Darragh <lists@ruby-forum.com> wrote:

I have tried to give it the specific Path to ruby and loadingin the path
from the profile I am using. It is still not working only when I run it
as a cronjob.

This is what the cronjob now looks like:

PATH="$HOME/bin:$PATH"
* * * * * /usr/bin/ruby /home/salinn/dev/ruby/webmail/script.rb

--
Posted via http://www.ruby-forum.com/\.

10

tamouse m. wrote in post #1120716:

···

On Sep 4, 2013, at 11:54 AM, Paul Darragh <lists@ruby-forum.com> wrote:

Posted via http://www.ruby-forum.com/\.

"It isn't working" isn't really very descriptive. What errors are you
getting?

The problem is I am not seeing any errors besides that it is not
running. I can see in syslog that it runs it.

--
Posted via http://www.ruby-forum.com/\.

11

So you see in syslog that it runs. But you somehow detect that it's not running, which I assume means you can't see the effect from it.

Are you getting an email from cron with any job output at all?

Given your crontab:

PATH="$HOME/bin:$PATH"
* * * * * /usr/bin/ruby /home/salinn/dev/ruby/webmail/script.rb

You should be seeing an email with the combined stdout/stdin from that job showing up once a minute. If not, change it to something like:

PATH="$HOME/bin:$PATH"
* * * * * /usr/bin/ruby /home/salinn/dev/ruby/webmail/script.rb >> $HOME/webmailscript.log 2>&1

to ensure you're getting the output, if any.

You might add a cron job that is simply:

* * * * * set > $HOME/crontab-env.txt 2>&1

to see the environment your cronjob is actually running in. After that cronjob runs, the file should appear in your home directory. You can remove the cronjob after that. Inspect the environment, see if there's anything missing you need.

···

On Sep 5, 2013, at 7:26 AM, Paul Darragh <lists@ruby-forum.com> wrote:

tamouse m. wrote in post #1120716:

On Sep 4, 2013, at 11:54 AM, Paul Darragh <lists@ruby-forum.com> wrote:

Posted via http://www.ruby-forum.com/\.

"It isn't working" isn't really very descriptive. What errors are you
getting?

The problem is I am not seeing any errors besides that it is not
running. I can see in syslog that it runs it.