Unable to execute Ruby script in a Python script -


i'm having trouble executing ruby script python code.

my server has cron job supposed execute python script , ruby script. however, ruby script has executed after python one, decided add line:

os.system("ruby /home/username/helloworld.rb")

at end of python script.

it runs, i'm getting error in log file:

/bin/sh 1: ruby not found

i'm not sure why happening; i've tried calling exact same function in python console running python script manually, , both work perfectly. in other words, line of code doesn't work only when script triggered cron.

is there else need put in crontab/python script perhaps?

cron passes limited number of environment variables job. according crontab(5) man page:

  • shell set /bin/sh
  • path set /usr/bin:/bin
  • logname , home set /etc/passwd line of crontab's owner.

home, path , shell may overridden settings in crontab; logname may not.

so if ruby executable not located in either /usr/bin or /bin cron cannot find default.

you can specify path within crontab include ruby executable though. 

path=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin  17 * * * * python my_ruby_calling_script.py

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