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how to read all the unique words in a text file


 
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# 1  
how to read all the unique words in a text file

How can i read all the unique words in a file, i used -

cat comment_file.txt | /usr/xpg6/bin/tr -sc 'A-Za-z' '/012'
and
cat comment_file.txt | /usr/xpg6/bin/tr -sdc 'A-Za-z' '/012'
but they didnt worked.....
# 2  
Does uniq somefile help?
# 3  
yes u will be using uniq only but the first part is not working i used -
cat comment_file.txt | /usr/xpg6/bin/tr -sdc 'A-Za-z' '/012' | sort | uniq -c
# 4  
This one from the archives may help. Although it shows non-unique non-unique words you would need to tweak it.
# 5  
Smilie
thankx anyways
# 6  
this is the solution ---

cat comment_file.txt | tr " " "\n" | sort | uniq -c | wc -l
Smilie

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