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difficult sed command

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Top Forums UNIX for Advanced & Expert Users difficult sed command
# 8  
Old 09-28-2006
Just check my HP box and got the same result that you did. Try this on your sed:

sed '/\(.*\)/{G;s/\(.*\)\(\n\)/\1\2extra\1/;}' file

or

echo files|sed '/\(.*\)/{G;s/\(.*\)\(\n\)/\1\2extra\1/;}' >newfile
# 9  
Old 09-28-2006
The first one worked, thank you for all your help!
# 10  
Old 09-28-2006
Sorry if im being stupid, but what would the code be if you wanted to add a third (or more) line to each line of original code? (each new line may contain the original line)

Thanks,
Dave
# 11  
Old 09-28-2006
Quote:
Originally Posted by Dave724001
Im trying to replace every line

line1
line2
line3

with:

line1
extraline1

line2
extraline2

line3
extraline3


with about 10 extra lines
I am able to add axtra lines with:

sed '/[^ ]*/ a\\
new line\\
' file > newfile

but i want the name of the original line in the new lines,
I have tried using '&' eg:

sed '/[^ ]*/ a\\
extra&\\
' file > newfile

but it outputs the & symbol and not the original line!

Can anyone help me?


Alternative in Python:
Code:
>>> extralines = ['extraline1','extraline2','extraline3']
>>> lines = ['line1','line2','line3']
>>> zip(lines,extralines)
[('line1', 'extraline1'), ('line2', 'extraline2'), ('line3', 'extraline3')]
>>> for i in zip(lines,extralines):
... 	print '\n'.join(i)
... 	
line1
extraline1
line2
extraline2
line3
extraline3

# 12  
Old 09-28-2006
Thanks for the reply, but I cant get that to work!
I was looking for a method which i dont need to type each line out because I need to run it on a file with 800 lines and I want it to do the same thing to each line.
# 13  
Old 09-28-2006
sed '/\(.*\)/{G;s/\(.*\)\(\n\)/\1\2extra\1\2extraextra\1/;}' file
# 14  
Old 09-28-2006
Thank you for that, it works perfectly!
Uve saved me sooo much time!
Cheers!
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