Cronab fails because shell path not found
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2
I am looking at the failure output of my crontab.
* * * * * user /usr/bin/python3 /home/user/src/code/prod.py
I get the error /bin/sh: 1: caleb: not found.
This corresponds to
X-Cron-Env: <SHELL=/bin/sh>
which is part of the email the crontab sent me. I created the crontab using
crontab -e
All of it looks like a simple setup is there anything that I am missing?
16.04 cron
asked 10 hours ago
caleb bakercaleb baker
132
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caleb baker is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment |
2
I am looking at the failure output of my crontab.
* * * * * user /usr/bin/python3 /home/user/src/code/prod.py
I get the error /bin/sh: 1: caleb: not found.
This corresponds to
X-Cron-Env: <SHELL=/bin/sh>
which is part of the email the crontab sent me. I created the crontab using
crontab -e
All of it looks like a simple setup is there anything that I am missing?
16.04 cron
asked 10 hours ago
caleb bakercaleb baker
132
New contributor
caleb baker is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
3
When you runcrontab -eit is already using your username so there is no need to add your username to the beginning of the command. The only place on the system that you add the username is in the/etc/crontabfile.
– Terrance
10 hours ago
@Terrance that fixed my problem. i got my solution from cyberciti.biz/faq/… And I looked at the format and paid no attention to the "for system jobs"
– caleb baker
10 hours ago
add a comment |
2
2
2
I am looking at the failure output of my crontab.
* * * * * user /usr/bin/python3 /home/user/src/code/prod.py
I get the error /bin/sh: 1: caleb: not found.
This corresponds to
X-Cron-Env: <SHELL=/bin/sh>
which is part of the email the crontab sent me. I created the crontab using
crontab -e
All of it looks like a simple setup is there anything that I am missing?
16.04 cron
asked 10 hours ago
caleb bakercaleb baker
132
New contributor
caleb baker is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am looking at the failure output of my crontab.
* * * * * user /usr/bin/python3 /home/user/src/code/prod.py
I get the error /bin/sh: 1: caleb: not found.
This corresponds to
X-Cron-Env: <SHELL=/bin/sh>
which is part of the email the crontab sent me. I created the crontab using
crontab -e
All of it looks like a simple setup is there anything that I am missing?
16.04 cron
16.04 cron
asked 10 hours ago
caleb bakercaleb baker
132
New contributor
caleb baker is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 10 hours ago
caleb bakercaleb baker
132
New contributor
caleb baker is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 10 hours ago
caleb bakercaleb baker
132
New contributor
caleb baker is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 10 hours ago
caleb bakercaleb baker
132
asked 10 hours ago
caleb bakercaleb baker
132
132
New contributor
caleb baker is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
caleb baker is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
caleb baker is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
3
When you runcrontab -eit is already using your username so there is no need to add your username to the beginning of the command. The only place on the system that you add the username is in the/etc/crontabfile.
– Terrance
10 hours ago
@Terrance that fixed my problem. i got my solution from cyberciti.biz/faq/… And I looked at the format and paid no attention to the "for system jobs"
– caleb baker
10 hours ago
add a comment |
3
When you runcrontab -eit is already using your username so there is no need to add your username to the beginning of the command. The only place on the system that you add the username is in the/etc/crontabfile.
– Terrance
10 hours ago
@Terrance that fixed my problem. i got my solution from cyberciti.biz/faq/… And I looked at the format and paid no attention to the "for system jobs"
– caleb baker
10 hours ago
3
3
When you run
crontab -e it is already using your username so there is no need to add your username to the beginning of the command. The only place on the system that you add the username is in the /etc/crontab file.– Terrance
10 hours ago
When you run
crontab -e it is already using your username so there is no need to add your username to the beginning of the command. The only place on the system that you add the username is in the /etc/crontab file.– Terrance
10 hours ago
@Terrance that fixed my problem. i got my solution from cyberciti.biz/faq/… And I looked at the format and paid no attention to the "for system jobs"
– caleb baker
10 hours ago
@Terrance that fixed my problem. i got my solution from cyberciti.biz/faq/… And I looked at the format and paid no attention to the "for system jobs"
– caleb baker
10 hours ago
add a comment |
1 Answer
1
active
oldest
votes
5
If you are using crontab -e that set of Cron tasks runs as the user which crontab -e was executed as - that is, your user user.
Therefore, you should only provide the cron entry WITHOUT the user bits, i.e.:
* * * * * /usr/bin/python3 /home/user/src/code/prod.py
The user definition you were attempting to use should only be used in the system crontab in /etc/crontab and in entries in cron definitions under /etc/cron.d/.
answered 10 hours ago
Thomas Ward♦Thomas Ward
45.1k23125178
Not to nitpick, but the "cron user" probably has/usr/binin its $PATH. So,* * * * * python3 /home/user/src/code/prod.pywill probably work.
– Seamus
10 hours ago
2
@Seamus when using crontabs it's generally better to use full paths just to rule out that problem.
– Thomas Ward♦
10 hours ago
It's redundant... but I suppose that could be considered "generally better", for some. I'm only trying to point out that the "cron user" does have an environment, and it can be determined if it's not known.
– Seamus
10 hours ago
1
@Seamus I often have to explain to people why their jobs that run fine from a bash prompt don't work correctly under cron (or Autosys etc.). I tell them that it's best to use the full path to everything they can, and explicitly set PATH= what they want it to be, rather than rely on "probably".
– Monty Harder
6 hours ago
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
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oldest
votes
active
oldest
votes
5
If you are using crontab -e that set of Cron tasks runs as the user which crontab -e was executed as - that is, your user user.
Therefore, you should only provide the cron entry WITHOUT the user bits, i.e.:
* * * * * /usr/bin/python3 /home/user/src/code/prod.py
The user definition you were attempting to use should only be used in the system crontab in /etc/crontab and in entries in cron definitions under /etc/cron.d/.
answered 10 hours ago
Thomas Ward♦Thomas Ward
45.1k23125178
Not to nitpick, but the "cron user" probably has/usr/binin its $PATH. So,* * * * * python3 /home/user/src/code/prod.pywill probably work.
– Seamus
10 hours ago
2
@Seamus when using crontabs it's generally better to use full paths just to rule out that problem.
– Thomas Ward♦
10 hours ago
It's redundant... but I suppose that could be considered "generally better", for some. I'm only trying to point out that the "cron user" does have an environment, and it can be determined if it's not known.
– Seamus
10 hours ago
1
@Seamus I often have to explain to people why their jobs that run fine from a bash prompt don't work correctly under cron (or Autosys etc.). I tell them that it's best to use the full path to everything they can, and explicitly set PATH= what they want it to be, rather than rely on "probably".
– Monty Harder
6 hours ago
add a comment |
5
If you are using crontab -e that set of Cron tasks runs as the user which crontab -e was executed as - that is, your user user.
Therefore, you should only provide the cron entry WITHOUT the user bits, i.e.:
* * * * * /usr/bin/python3 /home/user/src/code/prod.py
The user definition you were attempting to use should only be used in the system crontab in /etc/crontab and in entries in cron definitions under /etc/cron.d/.
answered 10 hours ago
Thomas Ward♦Thomas Ward
45.1k23125178
Not to nitpick, but the "cron user" probably has/usr/binin its $PATH. So,* * * * * python3 /home/user/src/code/prod.pywill probably work.
– Seamus
10 hours ago
2
@Seamus when using crontabs it's generally better to use full paths just to rule out that problem.
– Thomas Ward♦
10 hours ago
It's redundant... but I suppose that could be considered "generally better", for some. I'm only trying to point out that the "cron user" does have an environment, and it can be determined if it's not known.
– Seamus
10 hours ago
1
@Seamus I often have to explain to people why their jobs that run fine from a bash prompt don't work correctly under cron (or Autosys etc.). I tell them that it's best to use the full path to everything they can, and explicitly set PATH= what they want it to be, rather than rely on "probably".
– Monty Harder
6 hours ago
add a comment |
5
5
5
If you are using crontab -e that set of Cron tasks runs as the user which crontab -e was executed as - that is, your user user.
Therefore, you should only provide the cron entry WITHOUT the user bits, i.e.:
* * * * * /usr/bin/python3 /home/user/src/code/prod.py
The user definition you were attempting to use should only be used in the system crontab in /etc/crontab and in entries in cron definitions under /etc/cron.d/.
answered 10 hours ago
Thomas Ward♦Thomas Ward
45.1k23125178
If you are using crontab -e that set of Cron tasks runs as the user which crontab -e was executed as - that is, your user user.
Therefore, you should only provide the cron entry WITHOUT the user bits, i.e.:
* * * * * /usr/bin/python3 /home/user/src/code/prod.py
The user definition you were attempting to use should only be used in the system crontab in /etc/crontab and in entries in cron definitions under /etc/cron.d/.
answered 10 hours ago
Thomas Ward♦Thomas Ward
45.1k23125178
edited 10 hours ago
answered 10 hours ago
Thomas Ward♦Thomas Ward
45.1k23125178
answered 10 hours ago
Thomas Ward♦Thomas Ward
45.1k23125178
answered 10 hours ago
Thomas Ward♦Thomas Ward
45.1k23125178
45.1k23125178
Not to nitpick, but the "cron user" probably has/usr/binin its $PATH. So,* * * * * python3 /home/user/src/code/prod.pywill probably work.
– Seamus
10 hours ago
2
@Seamus when using crontabs it's generally better to use full paths just to rule out that problem.
– Thomas Ward♦
10 hours ago
It's redundant... but I suppose that could be considered "generally better", for some. I'm only trying to point out that the "cron user" does have an environment, and it can be determined if it's not known.
– Seamus
10 hours ago
1
@Seamus I often have to explain to people why their jobs that run fine from a bash prompt don't work correctly under cron (or Autosys etc.). I tell them that it's best to use the full path to everything they can, and explicitly set PATH= what they want it to be, rather than rely on "probably".
– Monty Harder
6 hours ago
add a comment |
Not to nitpick, but the "cron user" probably has/usr/binin its $PATH. So,* * * * * python3 /home/user/src/code/prod.pywill probably work.
– Seamus
10 hours ago
2
@Seamus when using crontabs it's generally better to use full paths just to rule out that problem.
– Thomas Ward♦
10 hours ago
It's redundant... but I suppose that could be considered "generally better", for some. I'm only trying to point out that the "cron user" does have an environment, and it can be determined if it's not known.
– Seamus
10 hours ago
1
@Seamus I often have to explain to people why their jobs that run fine from a bash prompt don't work correctly under cron (or Autosys etc.). I tell them that it's best to use the full path to everything they can, and explicitly set PATH= what they want it to be, rather than rely on "probably".
– Monty Harder
6 hours ago
Not to nitpick, but the "cron user" probably has
/usr/bin in its $PATH. So, * * * * * python3 /home/user/src/code/prod.py will probably work.– Seamus
10 hours ago
Not to nitpick, but the "cron user" probably has
/usr/bin in its $PATH. So, * * * * * python3 /home/user/src/code/prod.py will probably work.– Seamus
10 hours ago
2
2
@Seamus when using crontabs it's generally better to use full paths just to rule out that problem.
– Thomas Ward♦
10 hours ago
@Seamus when using crontabs it's generally better to use full paths just to rule out that problem.
– Thomas Ward♦
10 hours ago
It's redundant... but I suppose that could be considered "generally better", for some. I'm only trying to point out that the "cron user" does have an environment, and it can be determined if it's not known.
– Seamus
10 hours ago
It's redundant... but I suppose that could be considered "generally better", for some. I'm only trying to point out that the "cron user" does have an environment, and it can be determined if it's not known.
– Seamus
10 hours ago
1
1
@Seamus I often have to explain to people why their jobs that run fine from a bash prompt don't work correctly under cron (or Autosys etc.). I tell them that it's best to use the full path to everything they can, and explicitly set PATH= what they want it to be, rather than rely on "probably".
– Monty Harder
6 hours ago
@Seamus I often have to explain to people why their jobs that run fine from a bash prompt don't work correctly under cron (or Autosys etc.). I tell them that it's best to use the full path to everything they can, and explicitly set PATH= what they want it to be, rather than rely on "probably".
– Monty Harder
6 hours ago
add a comment |
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3
When you run
crontab -eit is already using your username so there is no need to add your username to the beginning of the command. The only place on the system that you add the username is in the/etc/crontabfile.– Terrance
10 hours ago
@Terrance that fixed my problem. i got my solution from cyberciti.biz/faq/… And I looked at the format and paid no attention to the "for system jobs"
– caleb baker
10 hours ago