if (FALSE) {
cron_add(command = cron_rscript(system.file(package = "cronR", "extdata", "helloworld.R")),
frequency = 'minutely', id = 'test1', description = 'My process 1')
cron_save(file="crontab_backup", overwrite=TRUE)
cron_clear()
cron_load(file="crontab_backup")
}
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