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Append the text file with comma at the end of every word

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# 1  
Old 06-23-2011
Append the text file with comma at the end of every word
Hi folks,


Using shell, I am trying the append comma to every line of text.
the requirement is like, I have to open the txt file in unix and read line by line and should add comma at the end of every word to make it single line

txt file
-------
abc@gmail.com
bcd@gmail.com
efg@gmail.com
ghi@yahoo.com


Now the file should be seperated with comma as shown below
-----------------------------------------------------------

abc@gmail.com,bcd@gmail.com,efg@gmail.com,ghi@yahoo.com

Please help me.......
# 2  
Old 06-23-2011
You don't need to add new data, just change what's already there. Linefeeds can be changed into commas easily enough:
tr '\n' ',' < input > output

That might add a comma to the end, though. so tr '\n' ',' < input | sed 's/,$//' > output
# 3  
Old 06-23-2011
append the text file with comma at the end of every word
Thanks alot coronaa688 ..
But can you please eloborate it... What is input n output here ..

Thanks in advance ...
# 4  
Old 06-23-2011
input is the input file, output is the output file. They shouldn't be the same, since most UNIX utilities can't edit in-place.
# 5  
Old 06-23-2011
input and output are nothing but your "input" text file where the email id's exists and output is the file where you want to save the outcome.
# 6  
Old 06-23-2011
Quote:
Originally Posted by Corona688
tr '\n' ',' < input | sed 's/,$//' > output
Alternatively:
Code:
paste -sd, input > output

Regards,
Alister
# 7  
Old 06-24-2011
Awk solution..
Code:
awk '{NR==1?s=$0 : s=s","$0}END{print s}'  inputfile
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