I’ll introduce the solution when a script executed by crontab outputs the error message ”* is not found”.

Prerequisite: PATH

The environment variables during cron execution are as follows. Only references /usr/bin and /bin

So I found that if PATH is not set in crontab, errors will occur for commands other than those with PATH to /usr/bin and /bin.

That’s all from the Gemba where the PATH for shell scripts set in crontab was not configured properly.

References

• cronの環境変数について - Qiita