Is having to learn a myriad of Unix command worse than having to learn a myriad of APIs of a myriad of Perl modules? Or do you plan to do everything yourself? I rather reuse what others have done....

Note also that IEEE Std 1003.1 - 2001 (aka POSIX) "Shell and Utilities" require the -m and -u options.

As for the overhead of sort, in the given example, no sort is actually done. The -m option, for merge, merges files which are already presumed to be sorted - but when given one file, this passes things unsorted.

Abigail

In reply to Re: At each change in... by Abigail-II
in thread At each change in... by malaga

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