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using sed to append text to the end of each line


 
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# 1  
Old 08-29-2005
using sed to append text to the end of each line

Anyone know how to use SED to append a comma to the end of each line

example:

field1,field2,field3,field4

If i Cat /textfile ---- How can i append the end of /textfile with a comman?
# 2  
Old 08-29-2005
Code:
echo 'a,b,c' | sed 's/$/,/'

# 3  
Old 08-29-2005
Works Great...Thanks for your help
# 4  
Old 07-11-2006
can u explain the syntax a little bit
about 'a,b,c' part
# 5  
Old 07-11-2006
Quote:
Originally Posted by gfhgfnhhn
can u explain the syntax a little bit
about 'a,b,c' part
a,b,c is just a placeholder. It can be anything; wrt the OP, it is the same as
field1,field2,field3,field4
# 6  
Old 07-11-2006
I am not sure if I have to start another thread or request for an answer in the same thread..

Just wondering how we can append tabs at the end of each line...
Data:
field1, field2, field3, field4
1 2
3 4 5

Append tab on field3 and field4 for the first row..and
Append tab on field4 for the second row.

Please advise...
Madhu
# 7  
Old 07-25-2006
Not quite sure what you're saying, but assuming you have a datafile that contains:

1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5

and you want it formatted as you've shown, you could do:
awk '{print $1, $2"\n"$3, $4, $5"\n\n"}' <datafile>

to get:
1 2
3 4 5

1 2
3 4 5
etc.

The above could also be accomplished with "awk '{printf}'".

I can't see the usefulness of adding tabs to the end of each line unless you plan to paste a file to this one, but you can do:
sed 's/$/[press TAB button here]/' datafile > newfile
 

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