This sort of thing usually happens when the script writer makes too many assumptions about cron.

The general environment that a script gets from cron isn't the same as the one you get when you log in.

Things to check:

• Does the script depend on being in a certain directory to run ? ( chdir() there explicitly in the script)
• Does the script depend on certain environment variables ? cron doesn't read your ".profile" file. The PATH environment variable is a common problem.

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