replace at specifcposition

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# 1  
Old 10-17-2007
replace at specifcposition


#xxxxx abced


The above are two lines in a file. I would like to parse the file write a text line between the above two

#xxxxx abced
<write a text line here>

How can I do this using sed or awk? also if there is any other easy way apart from sed and awk pls. let me know

# 2  
Old 10-17-2007
try the i command in sed
sed '/^xxx_hij/i\
<write a text line here>' filename

#xxxxx abced

#xxxxx abced
<write a text line here>

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