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Using GREP/AWK to extract a number and store it as a variable

 
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# 1  
Old 03-06-2009
Using GREP/AWK to extract a number and store it as a variable
Hello,

I have a question regarding the awk command. Here is the line I need to grep:

1 F= -.13250138E+03 E0= -.13249556E+03 d E =-.174650E-01 mag= 35.2157

Instead of displaying the number in red I would like to store it as a variable such as X. Is there a way to do this? Thanks for any help.

modey3
# 2  
Old 03-06-2009
Try...
Code:
eval $(echo '1 F= -.13250138E+03 E0= blah ' | awk '{print $2 $3}')

Variable is $F
# 3  
Old 03-06-2009
Ygor,

Thanks the command worked! Your solution works because fortunately 'F=' precedes '-.13250138E+03'. Is it possible to define '-.13250138E+03' in terms of a variable even if 'F=' didn't precede it? Thanks

modey3
# 4  
Old 03-06-2009
Never mind, I figured it out...

eval $(echo '1 F= -.13250138E+03 E0= blah ' | awk '{print "X=" $3}')
 
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