How do I remove the duplicate lines in this file?


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Top Forums Shell Programming and Scripting How do I remove the duplicate lines in this file?
# 1  
How do I remove the duplicate lines in this file?

Hey guys, need some help to fix this script. I am trying to remove all the duplicate lines in this file.
Quote:
J'aime lire ce livre
Cet ouvrage me donne de la joie a le lire
Le ciel est tres bleu ce matin
J'aime lire ce livre
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
J'aime ce site
J'aime ce site
J'aime lire ce livre
Le ciel est tres bleu ce matin
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
Cet ouvrage me donne de la joie a le lire
Le ciel est tres bleu ce matin
J'aime lire ce livre
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
J'aime ce site
J'aime ce site
J'aime lire ce livre
Le ciel est tres bleu ce matin
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
Cet ouvrage me donne de la joie a le lire
Le ciel est tres bleu ce matin
J'aime lire ce livre
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
J'aime ce site
J'aime ce site
J'aime lire ce livre
Le ciel est tres bleu ce matin
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
Cet ouvrage me donne de la joie a le lire
Le ciel est tres bleu ce matin
J'aime lire ce livre
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
J'aime ce site
J'aime ce site
J'aime lire ce livre
Le ciel est tres bleu ce matin
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
Le ciel est tres bleu ce matin
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
J'aime ce site
J'aime ce site
J'aime lire ce livre
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
J'aime ce site
J'aime ce site
J'aime lire ce livre
Le ciel est tres bleu ce matin
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
Le ciel est tres bleu ce matin
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
J'aime ce site
J'aime ce site
J'aime lire ce livre
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
J'aime ce site
J'aime ce site
J'aime lire ce livre
Le ciel est tres bleu ce matin
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
Le ciel est tres bleu ce matin
Cet ordinateur est trop lent pour moi
J'aime lire ce livre
J'aime ce site
J'aime ce site
I wrote the following script, but does not work. What is the problem?
Quote:
#!/usr/bin/ksh
cat file | while read line
do
sort file > file1
done
while read line
do
if $line!=$line++
then
echo $line
else
rm $line
fi
done<file1
mv file1 file.xls
The output file should only contain five lines:

Quote:
J'aime lire ce livre
Cet ouvrage me donne de la joie a le lire
Le ciel est tres bleu ce matin
J'aime ce site
Cet ordinateur est trop lent pour moi.
Later!
# 2  
You are close.

Try using
Code:
sort -u

# 3  
It works great! Many thanks!
# 4  
Quote:
Originally Posted by Ernst
The output file should only contain five lines:
In awk: remove duplicate, nonconsecutive lines

Code:
awk '!($0 in a) {a[$0];print}' inputfile.txt

# 5  
Code:
awk '!a[$0]++' infile

# 6  
Code:
perl -ne '$s{$_}++||print' infile

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