If your program will only run on one system you might also consider a counter stored in a file. Each time the program starts it will access the file, increase the counter and close it again. For handling concurrent runs of your program, you would just sleep(1) if/while your counter-file is locked for writing.

If your programs are running on several systems you might use the IP/MAC-address in conjunction with the counter and have a counter-file on each system....

HTH, Rata

In reply to Re: Generate a unique ID by Ratazong
in thread Generate a unique ID by BrowserUk

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