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Adding header once every 5 lines

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# 1  
Old 03-03-2011
Question Adding header once every 5 lines
Hi,

I need a help in creating a report file.
The input file is like this

1 A
2 B
3 V
4 X
5 m
6 O
7 X
8 p
9 a
10 X

There is a header which i have to print & save the result as a output file.
The header has multiple lines on is like say:
New New
S.No Name
(XX) (Y)
But i want the report file to be


New New
S.No Name
(XX) (Y)
1 A
2 B
3 V
4 X
5 m

---page break or a blank line----
New New
S.No Name
(XX) (Y)
6 O
7 X
8 p
9 a
10 X

Can this be possible using a SHELL SCRIPT?
I tried AWK & SED. but it helps inserting a single header, but i could find option to do this.
any pointers on this will be of great assistance.

Thanks
# 2  
Old 03-03-2011
Something like this?
Code:
awk -v str="\nNew\tNew\nS.No\tName\n(XX)\t(Y)\n" 'BEGIN{printf str} {if(NR%5==0){print $1"\t"$2;i=1}else{printf i==1?str$1"\t"$2"\n":$1"\t"$2"\n";i=0}}' infile

This User Gave Thanks to pravin27 For This Post:
aravindan
# 3  
Old 03-03-2011
pravin27

But i get this error when doing so

The error context is
BEGIN{printf str} {if(NR%5==0){print $1"\t"$2;i=1}else{printf >>> i== <<<
awk: 0602-502 The statement cannot be correctly parsed. The source line is 1.

can yu plz help?
# 4  
Old 03-03-2011
I think you have missed something. Please see below my o/p
Code:
# cat format
1 A
2 B
3 V
4 X
5 m
6 O
7 X
8 p
9 a
10 X

Code:
#awk -v str="\nNew\tNew\nS.No\tName\n(XX)\t(Y)\n" 'BEGIN{printf str} {if(NR%5==0){print $1"\t"$2;i=1}else{printf i==1?str$1"\t"$2"\n":$1"\t"$2"\n";i=0}}' format

O/P
Code:
New     New
S.No    Name
(XX)    (Y)
1       A
2       B
3       V
4       X
5       m

New     New
S.No    Name
(XX)    (Y)
6       O
7       X
8       p
9       a
10      X

# 5  
Old 03-03-2011
through sed..
Code:
sed '1~5s/.*/\nNew New\nS.No Name\n(XX) (Y)\n&/' inputfile > outfile

# 6  
Old 03-03-2011
Hi michaelrozar17,
Cluld you please explain me the SED code ?
# 7  
Old 03-03-2011
Pravin27,

Thanks your awk works fine on LINUX box.
But i pity myself, the same thing doesnt work on AIX.... Smilie Smilie
It throws this error

Syntax Error The source line is 1.
The error context is
BEGIN{printf str} {if(NR%5==0){print $1"\t"$2;i=1}else{printf >>> i== <<<
awk: 0602-502 The statement cannot be correctly parsed. The source line is 1.

when i execute
Code:
 awk -v str="\nNew\tNew\nS.No\tName\n(XX)\t(Y)\n" 'BEGIN{printf str} {if(NR%5==0){print $1"\t"$2;i=1}else{printf i==1?str$1"\t"$2"\n":$1"\t"$2"\n";i=0}}' file1

nt sure why it fails on AIX Smilie Smilie
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