I have a file containing "words" like

a

a/b

a/b/c

where there may be multiple words on a line (separated by spaces).  The a, b, and c strings can contain non-space, non-slash characters. I'd like to use gsub() to extract the c strings (which should be empty if there are none).

A real example is

"f 147/1315/587 2820/1320/587 3624/1321/587 1852/1322/587"

which I'd like to transform to

" 587 587 587 587"

Another real example is

"f 1067 28680 24462"

which should transform to "   ".

I've tried a few different regexprs, but am unable to find a way to say "transform words by deleting everything up to and including the 2nd slash" when there might be zero, one or two slashes.  Any suggestions?

Duncan Murdoch

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