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# 1  
Old 05-27-2015
Get a data and save

If I have a A.log
1 Air Flow Monitor     : 34.070 Degrees C
2 Air Flow Monitor     : 41.730 Degrees C
3 Air Flow Monitor     : 35.340 Degrees C
4 Air Flow Monitor     : 33.370 Degrees C
5 Air Flow Monitor     : 36.770 Degrees C
6 Air Flow Monitor     : 45.910 Degrees C
7 Air Flow Monitor     : 33.690 Degrees C
8 Air Flow Monitor     : 33.580 Degrees C

How do you write a shell script to collect what number of Air flow with temperature >= 40.00 degrees C? and save it in A_high.log ?
2 Air Flow Monitor     : 41.730 Degrees C
6 Air Flow Monitor     : 45.910 Degrees C

# 2  
Old 05-27-2015
awk '$6+0 >=40.0' infile > outfile

is how to do this. But this is not going to help you learn shell scripting.
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