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Shell Programming and Scripting

Add text to specified line

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# 1  
Old 06-14-2012
Add text to specified line
Hi All,

I am writing a script in which i need to add text "ABC" at line 14 in file input.txt

Can someone please help me how to do it? Thanks.

Regards,
Tushar
# 2  
Old 06-14-2012
What have you tried and what kind of errors did you get?
# 3  
Old 06-14-2012
I don't have much idea how file editing can be done within a shell script. I googled for it and came to know some commands like awk and ed can be useful but not sure what would be the exact command for doing this. Thanks.
# 4  
Old 06-14-2012
Add text to specified line
Hello,

Try this.

Code:
 
awk '{s=$0; if( NR==14 ){ s=s " ABC" } print s;}' inputfile > outfile

Modify accordingly..

Thanks
Krsnadasa
# 5  
Old 06-14-2012
Hi tushar_shah06,

One way using perl (change number 3 with your line number):
Code:
$ cat infile
one
two
three
four
five
six
seven
eigth
nine
$ perl -lpe 'substr $_, length , 0, q/ ABC/ if $. == 3' infile
one
two
three ABC
four
five
six
seven
eigth
nine

# 6  
Old 06-14-2012
Code:
awk 'NR==14{$0 = $0 "TEXT"}1' file

# 7  
Old 06-14-2012
Add text to specified line
Hi,

Why not this?

Code:
sed with option i: - 
 
sed "Lineno i Notes : Paste Here " file.txt

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