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How to achieve this?

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# 1  
Old 09-30-2008
How to achieve this?
hi to all,

i have the input(text file) like the below...


Header
1,2,3
4,5,6
7,8,9
Footer


i need a output(text file) like the below...

Header,1,2,3,Footer
Header,4,5,6,Footer
Header,7,8,9,Footer

please help me to find out?
# 2  
Old 09-30-2008
Code:
perl -0777 -pe 's%^(.*)\n%%; $header = $1;  s%\n(.*)$%%; $footer = $1;
  s%^(.*)$%$header,$1,$footer%gm' file

This will read the entire file into memory, so if the file is large, you're better off with a two-pass solution:

Code:
header=`head -n 1 file`
footer=`tail -n 1 file`
sed -e '1d' -e '$d' -e "s%.*%$header,&,$footer%" file

# 3  
Old 09-30-2008
Code:
 awk '{_[NR]=$0}END {for(i=2;i<NR;i++) print _[1],_[i],_[NR]}' OFS="," file

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