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Shell Programming and Scripting

writing string to specific line

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# 1  
Old 10-29-2009
writing string to specific line
I want to put a text string in file using any method on specific line


line number 30

text to be put %this is location /var/www/filename
# 2  
Old 10-29-2009
something like this :

Code:
awk -v c=30 'NR==c {$0="text want to put"}1' input >> output

# 3  
Old 10-29-2009
Try this:
Code:
    sed '123 i Texto a insertar'  fichero >> salida.txt

123 is your specific line .
# 4  
Old 10-29-2009
Hi

I like sed command its not working and what the logic behind it
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