Printing Duplicate Lines 1

[johngiggs]

I have a file which has a few duplicate lines. I would only like to print the duplicates, but I'm having a hard time thinking about how to accomplish this task. I was thinking of using a for loop, but I can't seem to get it to work. I am open to using a shell script, awk, or perl. Any help would be greatly appreciated.

Thanks,

John

 

[vgersh99]

something like that could get you started:

sort johngig.txt | uniq -c | nawk '$1 > 1 { $1=""; print}'

vlad
+----------------------------+
| #include<disclaimer.h> |
+----------------------------+

 

[Ygor]

uniq -d reports repeated lines

 

[vgersh99]

good catch, Ygor!

vlad
+----------------------------+
| #include<disclaimer.h> |
+----------------------------+

 

[johngiggs]

Thanks, Ygor!!

John