But, a lot of times, it doesn’t. Now, how to tell which process has a file open? If it is urgent, you need to identify the process locking a file and then end the process to modify the target file.

Similar to doing an lsof. I want to tell if a file is done copying before I process it. The copying is external to the script. I originally checked the mod time, waited an interval, then checked ...

CSV files are special text files that are quite common when dealing with spreadsheets. Here's how to open and make them.