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lang-bash
main-script.shin crontab, it might be executed via/bin/shinstead of/bin/bash. In case ofsourcecommand it's bash-specific. Try to replace that with. /home/pi/test-script.sh- that should work across the board on all POSIX compliant, bourne-like shells. Let me know if that works for you, and if it does I'll post it as a proper answerSHELL=/bin/bashin your crontab which makes life easier.#!/bin/bash, so a modernshwill launchbash.sh /path/to/main.shdefinitely won't like bashisms (unless it's CentOS where/bin/shis/bin/bash).