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Shell Programming and Scripting

Adding # before a line using csh

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# 1  
Old 09-13-2012
Adding # before a line using csh
Hi,

I want to grep a word say "fan" from a file and redirect those lines in a file with "#" before them.

eg

all
HTML Code:
fan is on
i am you
you are me
i am on fan
Expected o/p
#fan is on
#i am on fan
# 2  
Old 09-13-2012
Code:
sed -n '/fan/s/^/#/p' origfile > newfile

This User Gave Thanks to elixir_sinari For This Post:
vdhingra123
# 3  
Old 09-13-2012
With awk...

Code:
awk '/fan/{$0="#"$0;print}' file

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