Easy text merge... need help

MicahCarrick · 01-01-2007, 07:56 PM

I need to take a text file and create each line duplicated...

apple
orange
pear

should become

apple
apple
orange
orange
pear
pear

Anyone know what commands I should use off the top of their heads?

MicahCarrick · 01-01-2007, 07:57 PM

I'm sorry... actually, then need to be on the same line separated by a tab...

apple apple
orange orange
pear pear

much like the join command but without the column to join on.

chrism01 · 01-02-2007, 12:45 AM

Try a variation on this page: http://www.thedumbterminal.co.uk/php...ion=view&id=41
basically match anything s/.*/\1 \1/ replace with itself twice. Not sure about tab, try \t in between \1\1

jlinkels · 01-02-2007, 04:58 AM

awk '{print $0 "\t" $0}' /path/to/yourfile

jlinkels

MicahCarrick · 01-02-2007, 12:30 PM

Thanks guys.