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  1. or download this
    perl -we '$x="j::/tmp/lz/ncak.030610.141654";$x=~/.+\// && print $'\'
    
  2. or download this
    perl -le '$_="abc";/b/;print $'\'
                                 |  ^--- the single quote part of $'
                                 +--- the dollar part of $'
    
  3. or download this
    perl -le '$_="abc";/b/;print $'\'';print "more"'