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Remove Duplicate Lines

 
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# 1  
Old 08-21-2013
Remove Duplicate Lines
Hi

I need this output. Thanks.

Input:
Code:
TAZ
YET
FOO
FOO
VAK
TAZ
BAR

Output:

Code:
YET
VAK
BAR

# 2  
Old 08-21-2013
try..

Code:
 
sort filename|uniq  -u

# 3  
Old 08-21-2013
Code:
awk '{b[$0]=++a[$0]} END{for(i in b){if (b[i]==1) {print i}}}' filename

This User Gave Thanks to krishmaths For This Post:
tara123
# 4  
Old 08-21-2013
Awk solution is great thanks Smilie
# 5  
Old 08-21-2013
Quote:
Originally Posted by krishmaths
Code:
awk '{b[$0]=++a[$0]} END{for(i in b){if (b[i]==1) {print i}}}' filename

so what's the reason to set another array b?
Code:
awk '{a[$0]++} END{for(i in a){if (a[i]==1) {print i}}}' infile

This User Gave Thanks to rdcwayx For This Post:
krishmaths
# 6  
Old 08-21-2013
Quote:
Originally Posted by rdcwayx
so what's the reason to set another array b?
Code:
awk '{a[$0]++} END{for(i in a){if (a[i]==1) {print i}}}' infile

@rdcwayx - You are right. Thanks for simplifying.
# 7  
Old 08-21-2013
try also:
Code:
awk '{b[$0]=1}; a[$0]++ {delete b[$0]} END {for (i in b) print i}' input

Last edited by rdrtx1; 08-21-2013 at 01:22 PM.. Reason: 2 or more repeats of line
 
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