duplicate rows in a file


 
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# 1  
Old 05-22-2008
duplicate rows in a file

hi all

can anyone please let me know if there is a way to find out duplicate rows in a file. i have a file that has hundreds of numbers(all in next row).
i want to find out the numbers that are repeted in the file.
eg.
123434
534
5575
4746767
347624
5575

i want 5575

please help
# 2  
Old 05-22-2008
HI,

sort filename | uniq -c | awk ' $1 > 1 { print $2}'

Thanks
Penchal
This User Gave Thanks to penchal_boddu For This Post:
# 3  
Old 05-22-2008
One solution using awk.
Code:
awk 'arr[$1]++' data.file

# 4  
Old 05-22-2008
MySQL

Quote:
Originally Posted by penchal_boddu
HI,

sort filename | uniq -c | awk ' $1 > 1 { print $2}'

Thanks
Penchal
thanks

that worked

cheers
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