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Old 09-28-2011, 05:06 AM   #1
ameylimaye
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Registered: Aug 2011
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how do u make unique set of elements?


hello,
i have a list of around 500 names..
each name repeats for atleast 3 or four times...but i want it to appear only once...can anyone help me in this.!

thank you in advance..
 
Old 09-28-2011, 05:09 AM   #2
arochester
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Homework?
 
Old 09-28-2011, 05:16 AM   #3
colucix
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Take a look at the uniq command. If you have the names in a file, once per line you can simply try:
Code:
uniq <(sort filename)
The sorting is needed because uniq remove adjacent duplicates. If you don't want to sort the output, try awk as in:
Code:
awk '!_[$1]++' filename
 
Old 09-28-2011, 05:27 AM   #4
snooly
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sort filename.txt | uniq
 
Old 09-28-2011, 05:56 AM   #5
ameylimaye
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Thank you!
 
  


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