If I understand you correctly, your script works if you call it on the command line, but not as a cron job. That is usually because cron has a different environment, i.e. a different current working directory, a different PATH ...

For example it might have problems finding executables the script is depending on

In reply to Re: Extract data based on dates and place in new file by jethro
in thread Extract data based on dates and place in new file by dtbach

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