in reply to Re^2: greater efficiency required (ls, glob, or readdir?)
in thread greater efficiency required (ls, glob, or readdir?)
using ls has some advantages.
That's why some use glob.
Doing it in pure Perl requires several lines
It would take more than 7 lines to do the equivalent of or die $! when using cat. It's so complex you probably don't even bother doing it.
The OP's code is the perfect example. By using cat,
- he used three lines instead of two,
- he removed the error checking he'd do with open,
- he introduced a lot of overhead in a loop,
- he introduced a bug that deletes trailing blank lines, and
- he introduced a bug for files with spaces and other special characters in their names.
Update: Added OP as an example.
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