How to prevent that during the execution of one cron, another does not start executing?

Question

linux

A lot of cron tasks have gathered on the server, the execution time may be different for everyone. It is necessary to prevent that during the execution of one cron, another does not start executing. Tell me, how do people do this kind of optimization?
Thank you.

Answer 1

1. collect everything that should not overlap into one script and add only it to cron
2. create a lock file for other jobs. check for the existence of the file and exit if there is, or in a loop wait for the lock to be released.