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Copy some line and paste it after some line in same file

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Top Forums Shell Programming and Scripting Copy some line and paste it after some line in same file
# 15  
Old 08-30-2012
Quote:
Originally Posted by Biplab
cat test
1 a
2 b
3 c
4 d
5 e
6 f
7 g


sed '2,4H;6{;x;s/^\n//;p;x;}' test

1 a
2 b
2 b
3 c
3 c
2 b
3 c
4 d
4 d
2 b
3 c
4 d
6 f
2 b
3 c
4 d
7 g
Hmm..you seem to have to made some mistake while running the command (may be changed the positions of the semicolons). Try with this and let me know:
Code:
sed '2,4H
6{
x
s/^\n//
p
x
}' test

This User Gave Thanks to elixir_sinari For This Post:
Biplab
# 16  
Old 08-30-2012
awk
Quote:
Originally Posted by pamu
Hi Ranga,

Just one small addition...

Code:
awk 'NR>=6 && NR <=10{if(s){s=s RS $0;print;}else{s=$0}next;}NR==18{print s;}1' file

Nope mate Smilie

I think, you are trying to print all the original content and also print those content(6-10 lines) after the specified line(17th). If yes,
Then probably you have to remove the next,

Code:
awk 'NR>=6 && NR <=10{if(s){s=s RS $0;}else{s=$0}next;}NR==18{print s;}1' file1

Cheers,
Ranga Smilie
This User Gave Thanks to rangarasan For This Post:
pamu
# 17  
Old 08-30-2012
Got it Ranga...Smilie

Thanks a lotSmilie

My try on this..Smilie

Code:
awk '{if ((NR>=6) && (NR<=10)){{if(s){s=s RS $0;print;}else{s=$0}}}else{if (NR ==18){s=s RS $0; print s} else{ print;}}}' file

# 18  
Old 08-30-2012
Much appreciated for your tries.
I think you have to finetune the script Smilie

Cheers,
Ranga Smilie
# 19  
Old 08-30-2012
Quote:
Originally Posted by elixir_sinari
Hmm..you seem to have to made some mistake while running the command (may be changed the positions of the semicolons). Try with this and let me know:
Code:
sed '2,4H
6{
x
s/^\n//
p
x
}' test

Yes, Its working fine now... Thanks Smilie
# 20  
Old 08-31-2012
Hi.

A solution using ed:
Code:
#!/usr/bin/env bash

# @(#) s1	Demonstrate scripted interactive editor, ed.

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
# export PATH="/usr/local/bin:/usr/bin:/bin"
pe() { for _i;do printf "%s" "$_i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
edges() { local _f _n _l;: ${1?"edges: need file"}; _f=$1;_l=$(wc -l $_f);
head -${_n:=3} $_f ; pe "--- ( $_l: lines total )" ; tail -$_n $_f ; }
db() { ( printf " db, ";for _i;do printf "%s" "$_i";done;printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && $C ed paste

FILE=${1-data1}

pl " Input data file $FILE:"
cat $FILE
cp $FILE working

pl " Results, calculated vs desired:"
ed working 2>/dev/null <<'EOF'
2,4y
5x
w
q
EOF
if cmp working expected-output.txt
then
  paste working expected-output.txt
else
  pe " Error in calcualtion."
fi

exit 0

producing:
Code:
% ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution        : Debian GNU/Linux 5.0.8 (lenny) 
bash GNU bash 3.2.39
ed GNU Ed 0.7
paste (GNU coreutils) 6.10

-----
 Input data file data1:
1 a
2 b
3 c
4 d
5 e
6 f
7 g

-----
 Results, calculated vs desired:
1 a	1 a
2 b	2 b
3 c	3 c
4 d	4 d
5 e	5 e
2 b	2 b
3 c	3 c
4 d	4 d
6 f	6 f
7 g	7 g

See man ed for details ... cheers, drl
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