Famous Awk One-Liners Explained, Part II: Text Conversion and Substitution

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banhao Permalink
January 08, 2010, 07:25

I used the command:

awk '{sub(/piobe:/,":piobe:")};{print}' /etc/inittab

but the command will not change the /etc/inittab,it only display the result on the screen.
how to use the awk to change the file directory?
thanks!

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