a tab between values

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# 1  
Old 07-22-2009
a tab between values


I have a file that looks like this:


I want to put a space between the number and the -/+ sign. So the output file will look like this

36 -
9 +
45 -
43 +
400 -
700 +

# 2  
Old 07-22-2009
One way:

 sed 's/\(.*\)\(.$\)/\1 \2/' file

# 3  
Old 07-22-2009
sed 's/\(.$\)/ \1/' file

# 4  
Old 07-23-2009
sed 's/.$/ &/' file

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