[R] Read last line of a file

[Joel]

Hi dear R users.

I got a file that I need to extract the third column (or word) of the last
line of files that has a diffrent amounts of rows.
It works with 

x<-read.tables("file")
x[1,3] 

This returns the proper result but as the files is large this takes time and
uses memory that is just unneccery.

p<-read.table(textConnection(system("tail -1 file",intern=TRUE)))
p[1,3]

This also returns the proper result but then requires the system to be unix
based witch is quite silly if you ask me. Would rather just use R commands.

So Im wondering if anyone of you got a better way of reading the last line
of a file and extracting the third column (or word) of that line.

Best regards
//Joel Damberg



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