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by davnola 5368 days ago
Cool. That hurts my eyes.

    ruby -e "print ARGF.readlines.last(10)"
1 comments
rytis 5368 days ago
on, say, a 5GB log file?..

If I read this correctly (http://www.ruby-doc.org/core/classes/IO.html#M000914) it'll read the whole file into an array, then spit out last 10 entries?

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davnola 5368 days ago
Yes it does - good point, but the sigil-tastic snippet in the parent reads the whole file into an array, too - it's just harder to tell.

Plus the parent snippet is not Ruby 1.9 compatible.

Anyways, my version was just to illustrate that sysadmin scripting in Ruby does not have illegible.

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