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extracting unique lines from text file

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# 1  
Old 08-22-2008
extracting unique lines from text file
I have a file with 14million lines and I would like to extract all the unique lines from the file into another text file.

For example:

Contents of file1

happy
sad
smile
happy
funny
sad

I want to run a command against file one that only returns the unique lines (ie 1 line for happy and 1 line for sad).

Could someone please point me in the right direction.

Thanks
# 2  
Old 08-22-2008
You can try:

Code:
sort file | uniq > new_file

Regards
# 3  
Old 08-22-2008
If your sort support -u "uniq" option:
Code:
sort -u file > new_file

# 4  
Old 08-22-2008
Thank you...it works like a charm
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