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changing last 2 digits of text

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# 1  
Old 11-07-2006
changing last 2 digits of text
I have a text file with a bunch of ethernet port names and host names. I need to just change the last 2 chars on each line to a new number how can I do this quickly?

from

ethernet5/35 Net01
ethernet5/36 Net01
ethernet5/37 Net01
ethernet5/38 Net01

to

ethernet5/35 Net02
ethernet5/36 Net02
ethernet5/37 Net02
ethernet5/38 Net02

This is I have like 25 switches that all have same ports I need to work with and doing it manually will be killer. Can I do this in vi or some awk command? To be honest it can even dump it back into the same file right under old stuff.
# 2  
Old 11-07-2006
Code:
sed 's/Net01$/Net02/'  somefile > tmpfile
mv tmpfile somefile

# 3  
Old 11-07-2006
thanks that will work also i wanna combine them to one file im trying paste and join and its just not appending it to the end its combining them side by side. how can I just add file 1 to the bottom of file 2?
# 4  
Old 11-07-2006
Code:
cat file1 > tmpfile
sed 's/Net01$/Net02/'  file2 >> tmpfile
mv tmpfile file1

# 5  
Old 11-07-2006
Thanks dude!
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