Points for pointing out that `s/// for @array` is 50% faster than `grep {} @array`.

Points for telling me about `(?s:.*)` I did not know it could be written that way. It seems to be as fast as the other method (2% slightly faster), and might be more readable.

For the third one, it comes at the prices of understanding the intention of the line code. But if I just don't use newlines, it might be better. 

# perl -E '$x="abc\ndef"; $x=~s/.*/u/mi; say $x'
u
def
# perl -E '$x="abc\ndef"; $x=~s/[\s\S]*/u/mi; say $x'
u
# perl -E '$x="abc\ndef"; $x=~s/(?s:.*)/u/mi; say $x'
u

[download]

Will test this one in the field for a while.

In reply to Re^2: Linux Show Permissions: traverse file access by FreeBeerReekingMonk
in thread Linux Show Permissions: traverse file access by FreeBeerReekingMonk

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