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Crontab not executing jobs Ubuntu 14.04
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I am trying to run bash script as a cron job every 15 minutes.
The bash script simple calls a Java program. I made an entry in crontab to run the file every 15 minutes and saved it but it would not do anything ?
crontab -e
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh
Run_Cron_Read_Send_CapacityData_To_Graphite.sh
java Cron_Read_Send_CapacityData_To_Graphite >> Cron_Read_Send_CapacityData_To_Graphite.log
bash cron
asked Sep 17 '14 at 14:06
MarshellMarshell
131135
bumped to the homepage by Community♦ 4 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I am trying to run bash script as a cron job every 15 minutes.
The bash script simple calls a Java program. I made an entry in crontab to run the file every 15 minutes and saved it but it would not do anything ?
crontab -e
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh
Run_Cron_Read_Send_CapacityData_To_Graphite.sh
java Cron_Read_Send_CapacityData_To_Graphite >> Cron_Read_Send_CapacityData_To_Graphite.log
bash cron
asked Sep 17 '14 at 14:06
MarshellMarshell
131135
bumped to the homepage by Community♦ 4 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Are you sure "java" is in the PATH? (and I do not mean the users PATH ;-) )
– Rinzwind
Sep 17 '14 at 14:10
I suggest you redirect std output and std error in order to debug your problem.*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh >> /home/marshell/graphite_cronjobs/debug.log 2>&1
– Lety
Sep 17 '14 at 14:17
Hi i tried this ' /usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/bin/java Cron_Read_Send_CapacityData_To_Graphite ' in the bash script now i get a n error Could not find or load main class ?
– Marshell
Sep 17 '14 at 14:52
Try to put your cron instructions in/etc/crontab' instead ofcrontab -e`
– Harris
Sep 17 '14 at 15:23
add a comment |
I am trying to run bash script as a cron job every 15 minutes.
The bash script simple calls a Java program. I made an entry in crontab to run the file every 15 minutes and saved it but it would not do anything ?
crontab -e
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh
Run_Cron_Read_Send_CapacityData_To_Graphite.sh
java Cron_Read_Send_CapacityData_To_Graphite >> Cron_Read_Send_CapacityData_To_Graphite.log
bash cron
asked Sep 17 '14 at 14:06
MarshellMarshell
131135
I am trying to run bash script as a cron job every 15 minutes.
The bash script simple calls a Java program. I made an entry in crontab to run the file every 15 minutes and saved it but it would not do anything ?
crontab -e
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh
Run_Cron_Read_Send_CapacityData_To_Graphite.sh
java Cron_Read_Send_CapacityData_To_Graphite >> Cron_Read_Send_CapacityData_To_Graphite.log
bash cron
bash cron
asked Sep 17 '14 at 14:06
MarshellMarshell
131135
asked Sep 17 '14 at 14:06
MarshellMarshell
131135
asked Sep 17 '14 at 14:06
MarshellMarshell
131135
asked Sep 17 '14 at 14:06
MarshellMarshell
131135
asked Sep 17 '14 at 14:06
MarshellMarshell
131135
131135
bumped to the homepage by Community♦ 4 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 4 hours ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Are you sure "java" is in the PATH? (and I do not mean the users PATH ;-) )
– Rinzwind
Sep 17 '14 at 14:10
I suggest you redirect std output and std error in order to debug your problem.*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh >> /home/marshell/graphite_cronjobs/debug.log 2>&1
– Lety
Sep 17 '14 at 14:17
Hi i tried this ' /usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/bin/java Cron_Read_Send_CapacityData_To_Graphite ' in the bash script now i get a n error Could not find or load main class ?
– Marshell
Sep 17 '14 at 14:52
Try to put your cron instructions in/etc/crontab' instead ofcrontab -e`
– Harris
Sep 17 '14 at 15:23
add a comment |
Are you sure "java" is in the PATH? (and I do not mean the users PATH ;-) )
– Rinzwind
Sep 17 '14 at 14:10
I suggest you redirect std output and std error in order to debug your problem.*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh >> /home/marshell/graphite_cronjobs/debug.log 2>&1
– Lety
Sep 17 '14 at 14:17
Hi i tried this ' /usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/bin/java Cron_Read_Send_CapacityData_To_Graphite ' in the bash script now i get a n error Could not find or load main class ?
– Marshell
Sep 17 '14 at 14:52
Try to put your cron instructions in/etc/crontab' instead ofcrontab -e`
– Harris
Sep 17 '14 at 15:23
Are you sure "java" is in the PATH? (and I do not mean the users PATH ;-) )
– Rinzwind
Sep 17 '14 at 14:10
Are you sure "java" is in the PATH? (and I do not mean the users PATH ;-) )
– Rinzwind
Sep 17 '14 at 14:10
I suggest you redirect std output and std error in order to debug your problem.
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh >> /home/marshell/graphite_cronjobs/debug.log 2>&1– Lety
Sep 17 '14 at 14:17
I suggest you redirect std output and std error in order to debug your problem.
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh >> /home/marshell/graphite_cronjobs/debug.log 2>&1– Lety
Sep 17 '14 at 14:17
Hi i tried this ' /usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/bin/java Cron_Read_Send_CapacityData_To_Graphite ' in the bash script now i get a n error Could not find or load main class ?
– Marshell
Sep 17 '14 at 14:52
Hi i tried this ' /usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/bin/java Cron_Read_Send_CapacityData_To_Graphite ' in the bash script now i get a n error Could not find or load main class ?
– Marshell
Sep 17 '14 at 14:52
Try to put your cron instructions in
/etc/crontab' instead of crontab -e`– Harris
Sep 17 '14 at 15:23
Try to put your cron instructions in
/etc/crontab' instead of crontab -e`– Harris
Sep 17 '14 at 15:23
add a comment |
1 Answer
1
active
oldest
votes
There are two possible issues here. First of all, cron runs jobs in a special shell which does not read your personal $PATH. If java is not in /usr/bin or /bin, it will not be available to cron. From man 5 crontab:
Several environment variables are set up automatically by the
cron(8) daemon. SHELL is set to /bin/sh, and LOGNAME and HOME are
set from the /etc/passwd line of the crontab's owner.
PATH is set to "/usr/bin:/bin". HOME, SHELL, and PATH may
be overridden by settings in the crontab; LOGNAME is the user that
the job is running from, and may not be changed.
So, use the full path to java instead. The next issue is that your bash script calls java on a file with a relative path. It assumes that the script will be launched from the same directory as the java file. Again, this is not the case. So, always use absolute paths for your scripts if you want them to run as expected by cron:
/path/to/java /path/to/Cron_Read_Send_CapacityData_To_Graphite >> /path/to/Cron_Read_Send_CapacityData_To_Graphite.log
Alternatively, you can set the $PATH in the crontab itself:
PATH=$PATH:/opt/bin
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh
answered Sep 17 '14 at 16:08
terdon♦terdon
67.6k13139223
It is also possible to put a PATH in crontab ;)
– Rinzwind
Sep 17 '14 at 16:10
@Rinzwind yes but personally I find using full paths better. In any case they're needed for the input and output files here. Still, I added an example of setting the path in the crontab.
– terdon♦
Sep 17 '14 at 16:14
add a comment |
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There are two possible issues here. First of all, cron runs jobs in a special shell which does not read your personal $PATH. If java is not in /usr/bin or /bin, it will not be available to cron. From man 5 crontab:
Several environment variables are set up automatically by the
cron(8) daemon. SHELL is set to /bin/sh, and LOGNAME and HOME are
set from the /etc/passwd line of the crontab's owner.
PATH is set to "/usr/bin:/bin". HOME, SHELL, and PATH may
be overridden by settings in the crontab; LOGNAME is the user that
the job is running from, and may not be changed.
So, use the full path to java instead. The next issue is that your bash script calls java on a file with a relative path. It assumes that the script will be launched from the same directory as the java file. Again, this is not the case. So, always use absolute paths for your scripts if you want them to run as expected by cron:
/path/to/java /path/to/Cron_Read_Send_CapacityData_To_Graphite >> /path/to/Cron_Read_Send_CapacityData_To_Graphite.log
Alternatively, you can set the $PATH in the crontab itself:
PATH=$PATH:/opt/bin
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh
answered Sep 17 '14 at 16:08
terdon♦terdon
67.6k13139223
It is also possible to put a PATH in crontab ;)
– Rinzwind
Sep 17 '14 at 16:10
@Rinzwind yes but personally I find using full paths better. In any case they're needed for the input and output files here. Still, I added an example of setting the path in the crontab.
– terdon♦
Sep 17 '14 at 16:14
add a comment |
There are two possible issues here. First of all, cron runs jobs in a special shell which does not read your personal $PATH. If java is not in /usr/bin or /bin, it will not be available to cron. From man 5 crontab:
Several environment variables are set up automatically by the
cron(8) daemon. SHELL is set to /bin/sh, and LOGNAME and HOME are
set from the /etc/passwd line of the crontab's owner.
PATH is set to "/usr/bin:/bin". HOME, SHELL, and PATH may
be overridden by settings in the crontab; LOGNAME is the user that
the job is running from, and may not be changed.
So, use the full path to java instead. The next issue is that your bash script calls java on a file with a relative path. It assumes that the script will be launched from the same directory as the java file. Again, this is not the case. So, always use absolute paths for your scripts if you want them to run as expected by cron:
/path/to/java /path/to/Cron_Read_Send_CapacityData_To_Graphite >> /path/to/Cron_Read_Send_CapacityData_To_Graphite.log
Alternatively, you can set the $PATH in the crontab itself:
PATH=$PATH:/opt/bin
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh
answered Sep 17 '14 at 16:08
terdon♦terdon
67.6k13139223
It is also possible to put a PATH in crontab ;)
– Rinzwind
Sep 17 '14 at 16:10
@Rinzwind yes but personally I find using full paths better. In any case they're needed for the input and output files here. Still, I added an example of setting the path in the crontab.
– terdon♦
Sep 17 '14 at 16:14
add a comment |
There are two possible issues here. First of all, cron runs jobs in a special shell which does not read your personal $PATH. If java is not in /usr/bin or /bin, it will not be available to cron. From man 5 crontab:
Several environment variables are set up automatically by the
cron(8) daemon. SHELL is set to /bin/sh, and LOGNAME and HOME are
set from the /etc/passwd line of the crontab's owner.
PATH is set to "/usr/bin:/bin". HOME, SHELL, and PATH may
be overridden by settings in the crontab; LOGNAME is the user that
the job is running from, and may not be changed.
So, use the full path to java instead. The next issue is that your bash script calls java on a file with a relative path. It assumes that the script will be launched from the same directory as the java file. Again, this is not the case. So, always use absolute paths for your scripts if you want them to run as expected by cron:
/path/to/java /path/to/Cron_Read_Send_CapacityData_To_Graphite >> /path/to/Cron_Read_Send_CapacityData_To_Graphite.log
Alternatively, you can set the $PATH in the crontab itself:
PATH=$PATH:/opt/bin
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh
answered Sep 17 '14 at 16:08
terdon♦terdon
67.6k13139223
There are two possible issues here. First of all, cron runs jobs in a special shell which does not read your personal $PATH. If java is not in /usr/bin or /bin, it will not be available to cron. From man 5 crontab:
Several environment variables are set up automatically by the
cron(8) daemon. SHELL is set to /bin/sh, and LOGNAME and HOME are
set from the /etc/passwd line of the crontab's owner.
PATH is set to "/usr/bin:/bin". HOME, SHELL, and PATH may
be overridden by settings in the crontab; LOGNAME is the user that
the job is running from, and may not be changed.
So, use the full path to java instead. The next issue is that your bash script calls java on a file with a relative path. It assumes that the script will be launched from the same directory as the java file. Again, this is not the case. So, always use absolute paths for your scripts if you want them to run as expected by cron:
/path/to/java /path/to/Cron_Read_Send_CapacityData_To_Graphite >> /path/to/Cron_Read_Send_CapacityData_To_Graphite.log
Alternatively, you can set the $PATH in the crontab itself:
PATH=$PATH:/opt/bin
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh
answered Sep 17 '14 at 16:08
terdon♦terdon
67.6k13139223
edited Sep 17 '14 at 16:15
answered Sep 17 '14 at 16:08
terdon♦terdon
67.6k13139223
answered Sep 17 '14 at 16:08
terdon♦terdon
67.6k13139223
answered Sep 17 '14 at 16:08
terdon♦terdon
67.6k13139223
67.6k13139223
It is also possible to put a PATH in crontab ;)
– Rinzwind
Sep 17 '14 at 16:10
@Rinzwind yes but personally I find using full paths better. In any case they're needed for the input and output files here. Still, I added an example of setting the path in the crontab.
– terdon♦
Sep 17 '14 at 16:14
add a comment |
It is also possible to put a PATH in crontab ;)
– Rinzwind
Sep 17 '14 at 16:10
@Rinzwind yes but personally I find using full paths better. In any case they're needed for the input and output files here. Still, I added an example of setting the path in the crontab.
– terdon♦
Sep 17 '14 at 16:14
It is also possible to put a PATH in crontab ;)
– Rinzwind
Sep 17 '14 at 16:10
It is also possible to put a PATH in crontab ;)
– Rinzwind
Sep 17 '14 at 16:10
@Rinzwind yes but personally I find using full paths better. In any case they're needed for the input and output files here. Still, I added an example of setting the path in the crontab.
– terdon♦
Sep 17 '14 at 16:14
@Rinzwind yes but personally I find using full paths better. In any case they're needed for the input and output files here. Still, I added an example of setting the path in the crontab.
– terdon♦
Sep 17 '14 at 16:14
add a comment |
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Are you sure "java" is in the PATH? (and I do not mean the users PATH ;-) )
– Rinzwind
Sep 17 '14 at 14:10
I suggest you redirect std output and std error in order to debug your problem.
*/15 * * * * /home/marshell/graphite_cronjobs/Run_Cron_Read_Send_CapacityData_To_Graphite.sh >> /home/marshell/graphite_cronjobs/debug.log 2>&1– Lety
Sep 17 '14 at 14:17
Hi i tried this ' /usr/lib/jvm/java-1.7.0-openjdk-amd64/jre/bin/java Cron_Read_Send_CapacityData_To_Graphite ' in the bash script now i get a n error Could not find or load main class ?
– Marshell
Sep 17 '14 at 14:52
Try to put your cron instructions in
/etc/crontab' instead ofcrontab -e`– Harris
Sep 17 '14 at 15:23