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Retrieving a specific value

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# 1  
Old 06-06-2011
Retrieving a specific value
I have this input file:
Quote:
wow1>
NLD_0_1: 20.5[dB]
NLD_1_1: 23.9[dB]
NLD_2_1: 12.3
wow4>
NLD_0_1: 26.2[dB]
NLD_1_1: 9.2[dB]
NLD_2_1: 27.8[dB]
wow15>
NLD_0_1: 28.0[dB]
NLD_1_1: 24.2[dB]
NLD_2_1: 8.6[dB]
wow6>
NLD_0_1: 13.9[dB]
NLD_1_1: 13.0[dB]
NLD_2_1: 7.6[dB]
I want to get the following output file:
Output
Quote:
wow1>
NLD_2_1: 12.3[dB]
wow4>
NLD_1_1: 9.2[dB]
wow15>
NLD_2_1: 8.6[dB]
wow6>
NLD_0_1: 13.9[dB]
NLD_1_1: 13.0[dB]
NLD_2_1: 7.6[dB]
Basically, the program would scan the file and look for every instance where the value is < 14.0 dB. The program would then print the row that contains that value along with the corresponding name with the ">".
Be blessed!
# 2  
Old 06-06-2011
Code:
kamaraj@kamaraj-laptop:~/Desktop/Scripts$ awk -F"[:[]" ' { if (substr($0,0,3)=="wow") print $0; else if ($2<14) print $0}' filename
wow1>
NLD_2_1: 12.3
wow4>
NLD_1_1: 9.2[dB]
wow15>
NLD_2_1: 8.6[dB]
wow6>
NLD_0_1: 13.9[dB]
NLD_1_1: 13.0[dB]
NLD_2_1: 7.6[dB]

# 3  
Old 06-06-2011
Code:
 
awk -F"[:[]" 'NF==1{print ; next}{if($2<14&&$2!=""){$0=$1":"$2"[dB]"; print $0}} ' input_File

This User Gave Thanks to panyam For This Post:
Ernst
# 4  
Old 06-06-2011
Unfortunately, neither code works for me. They kept printing only the first column.
Quote:
HTHa0101013> Value
HTHa0101014>
HTHa0101015>
HTHa0101016>
HTHa0101017>
HTHa0101018>
HTHa0101020>
HTHa0101021>
HTHa0101022>
Let me post the real file that I am using so you can try it also.
Code:
HTHa0101013>    ru
MOD_0_1:    20.5[dB]
MOD_1_1:    23.9[dB]
MOD_2_1:    Type
HTHa0101014>    ru
MOD_0_1:    26.2[dB]
MOD_1_1:    20.2[dB]
MOD_2_1:    27.8[dB]
HTHa0101015>    ru
MOD_0_1:    28.0[dB]
MOD_1_1:    24.2[dB]
MOD_2_1:    28.6[dB]
HTHa0101016>    ru
MOD_0_1:    24.6[dB]
MOD_1_1:    23.0[dB]
MOD_2_1:    27.6[dB]
HTHa0101017>    ru
MOD_0_1:    19.0[dB]
MOD_1_1:    18.4[dB]
MOD_2_1:    20.7[dB]
HTHa0101018>    ru
MOD_0_1:    24.9[dB]
MOD_1_1:    28.8[dB]
MOD_2_1:    22.3[dB]
HTHa0101020>    ru
MOD_0_1:    19.6[dB]
MOD_1_1:    23.2[dB]
MOD_2_1:    16.9[dB]
HTHa0101021>    ru
MOD_0_1:    19.1[dB]
MOD_1_1:    25.5[dB]
MOD_2_1:    27.5[dB]
HTHa0101022>    ru
MOD_0_1:    20.8[dB]
MOD_1_1:    20.0[dB]
MOD_2_1:    21.2[dB]

My expected output value is:
Quote:
HTHa0101013> Value
MOD_2_1: 13.9[dB]
HTHa0101014>
MOD_1_1: 10.2[dB]
HTHa0101016>
MOD_1_1: 13.0[dB]
HTHa0101017>
MOD_2_1: 10.7[dB]
HTHa0101020>
MOD_1_1: 13.2[dB]
HTHa0101022>
MOD_1_1: 10.0[dB]
MOD_2_1: 11.2[dB]
I used these codes:
Code:
wk -F"[:[]" ' { if (substr($0,0,3)=="HTHa010") print $0; else if ($2<14) print
$0}' tt > tt1.xls

Code:
wk -F"[:[]" 'NF==1{print ; next}{if($2<14&&$2!=""){$0=$1":"$2"[dB]"; print $0}}
 ' tt

Not getting the desired result.
Last edited by radoulov; 06-06-2011 at 05:29 PM.. Reason: Code tags.
# 5  
Old 06-06-2011
The code from panyam

Code:
awk -F"[:[]" 'NF==1{print ; next}{if($2<14&&$2!=""){$0=$1":"$2"[dB]"; print $0}} '

Works, but in your example you don`t have value with lower than 14 dB. What exactly is the goal? If you want to see values for example < 30dB change the 14(bolded one) to 30 Smilie
# 6  
Old 06-06-2011
Code:
nawk -v thr=14 -F '[:[]' '/>/ {h=$0;p=1;next} {if(NF>2 &&$2<thr){printf("%s%s\n", p?h ORS:"", $0);p=0}}' myFile

Adjust the value of 'thr' to your liking.
# 7  
Old 06-06-2011
Sorry, I posted the wrong input file again:
It was supposed to be this one
Quote:
HTHa0101013> Value
MOD_0_1: 20.5[dB]
MOD_1_1: 23.9[dB]
MOD_2_1: 13.9[dB]
HTHa0101014>
MOD_0_1: 26.2[dB]
MOD_1_1: 10.2[dB]
MOD_2_1: 27.8[dB]
HTHa0101015>
MOD_0_1: 28.0[dB]
MOD_1_1: 24.2[dB]
MOD_2_1: 28.6[dB]
HTHa0101016>
MOD_0_1: 24.6[dB]
MOD_1_1: 13.0[dB]
MOD_2_1: 27.6[dB]
HTHa0101017>
MOD_0_1: 19.0[dB]
MOD_1_1: 18.4[dB]
MOD_2_1: 10.7[dB]
HTHa0101018>
MOD_0_1: 24.9[dB]
MOD_1_1: 28.8[dB]
MOD_2_1: 22.3[dB]
HTHa0101020>
MOD_0_1: 19.6[dB]
MOD_1_1: 13.2[dB]
MOD_2_1: 16.9[dB]
HTHa0101021>
MOD_0_1: 19.1[dB]
MOD_1_1: 15.5[dB]
MOD_2_1: 27.5[dB]
HTHa0101022>
MOD_0_1: 20.8[dB]
MOD_1_1: 10.0[dB]
MOD_2_1: 11.2[dB]
---------- Post updated at 04:44 PM ---------- Previous update was at 04:41 PM ----------

vgersh99,

Yours works. Great job guys. I appreciate you all.
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