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Use sed to add "+" between words

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# 1  
Old 11-05-2013
Use sed to add "+" between words
Code:
abc aa bb dd

to

Code:
abc+aa+bb+dd

# 2  
Old 11-05-2013
What did you try?
# 3  
Old 11-05-2013
echo "abc aa bb dd" | sed -e 's/ /+/g'
# 4  
Old 11-05-2013
Hello,

1 more approach.

Code:
echo "abc aa bb dd" | tr ' ' '+'

Output will be as follows.

Code:
abc+aa+bb+dd


Thanks,
R. Singh
# 5  
Old 11-05-2013
You may try awk

Code:
$ echo "abc aa bb dd" | awk '$1=$1' OFS="+"
abc+aa+bb+dd

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