在Crontab中运行NodeJS命令和Linux cmd

Question

I am running an EC2 AWS instance, I have a range of commands and scripts that run well but will not execute within a crontab. Here are the contents of the Crontab:

15 03 * * * pythonscript1.py
45 03 * * * pythonscript2.py
00 05 * * * gsjson 1z5OlqsyU5N2ze1JYHJssfe1LpKNvsr4j8TDGnvyuaDZ gsheet.json
05 05 * * * s3cmd put gsheet.json -P -f s3://mybucket772

Do I need the path of the python program within EC2? gsjson was installed as a NPM package using NodeJS and S3cmd is a command line tool I installed.

https://s1.postimg.org/nu4zfb22n/ec2-filetree.jpg

I assume I might the programs path within cron but I'm not sure what command I need to get this. Or maybe I should the wrap the last 2 commands in a .js file and point to that?

Answer 1

使用绝对路径时，无需进一步挖掘设置即可正常工作，即：

15 03 * * * /home/ec2-user/pythonscript1.py

Answer 2

After spending an entire bank holiday wrestling with this. Here was the solution, looks so easy now but not when you are wrestling with it:

I edited the ec2-user cron using the command: EDITOR=nano crontab -e , whilst logged in as the ec2-user. To create my cron job.

The main problem I had was not having the following at the top of my crontab

PATH=/bin:/usr/local/bin

as these point to the location of gsjson and s3cmd.

However, the Python scripts still wouldn't work as the path for those was usr/bin. So we needed the absolute path for both the location of Python and the script. So below was the final cron contents, the working solution. Thanks for the others input on the question too.

Ensure the scripts are 0755 permissions.

PATH=/bin:/usr/local/bin

15 03 * * * /usr/bin/python /home/ec2-user/pythonscript1.py
45 03 * * * /usr/bin/python /home/ec2-user/pythonscript2.py
00 05 * * * gsjson 1z5OlqsyU5N2ze1JYHJssfe1LpKNvsr4j8TDGnvyuaDZ gsheet.json
05 05 * * * s3cmd put gsheet.json -P -f s3://mybucket772

Some other useful commands too when configuring:

cat /var/spool/mail/ec2-user 

Enables you to view your error emails within the CLI

crontab -l 

(Display your crontab file.)

crontab -e 

(Edit your crontab file, or create one if it doesn't already exist)

sudo service crond status

(gives current status)

which python

(gives your path)