help with selecting rows using awk

Question

I have a file as follows

2.54 Ghz val
2.53 Ghz val1
1.6 Ghz val2
800 Mhz val3
2.54 Ghz val4
2.53 Ghz val5
1.6 Ghz val6
800 Mhz val7

and the pattern continues ... I want to extract all 2.54 Ghz values in one file1 and all 2.53 Ghz values in another file2 , 1.60 Ghz values in file3 and 800 Mhz values in file4

can anyone help me with this ?

ghostdog74 · Accepted Answer · 2009-11-21 01:41:04Z

8

 awk '{print $0 > "file_"$1"_"$2}' file

answered Nov 21, 2009 at 1:41

ghostdog74

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2 Comments

Dennis Williamson Over a year ago

Or possibly ...print $3 > ... if only you only want the values and not the full line.

ghostdog74 Over a year ago

yes, if OP only wants the values. I will leave it as $0 for the sake of generality.

Fritz G. Mehner · Accepted Answer · 2009-11-21 18:51:25Z

0

Pure Bash:

rm --force file_*

while read speed magnitude value; do
    echo -e "${value}" >> "file_${speed}_${magnitude}"
done < file

answered Nov 21, 2009 at 18:51

Fritz G. Mehner

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