Since each individual log is sorted already you should not need to do so much work. The following outline should be sufficient:

open the log files and the output file.
read first line of each log file.
write oldest line to output file and read next line from corresponding
+ input file.
repeat.

[download]

update: See Also File::MergeSort

Good Day,
    Dean

In reply to Re: progress bar for a system command by duelafn
in thread progress bar for a system command by xorl

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