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Shell Programming and Scripting

need help in shell scripting....

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# 1  
Old 10-10-2011
need help in shell scripting....
Code:
2011/10/10 06:30
VIDP 100630Z 30007KT 2500 HZ NSC 32/17 Q1014 NOSIG
2011/10/10 06:55
OPLA 100655Z 32005KT 5000 HZ FEW100 33/18 Q1015 NOSIG A29.98
2011/08/26 12:00
VEAT 261200Z 00000KT 4000 HZ SCT018 SCT025 FEW030CB BKN100 29/27 Q1001 NOSIG RMK CB TO SE SW
2011/08/26 08:00
VEGT 260800Z 07011KT 7000 FEW020 SCT100 34/27 Q1002 NOSIG
2011/10/10 06:30
VIDP 100630Z 30007KT 2500 HZ NSC 32/17 Q1014 NOSIG
2011/10/05 09:30
VIGR 050930Z VRB02KT 8000 FEW030 36/14 Q1010 NOSIG

Ihave the above data in a file... i need that every second line should have METAR word in starting and = sign in the end...
Code:
METAR VIDP 100630Z 30007KT 2500 HZ NSC 32/17 Q1014 NOSIG=

Last edited by Franklin52; 10-10-2011 at 04:40 AM.. Reason: Please use code tags, thank you
# 2  
Old 10-10-2011
Hi,
I hope that my understand is correct. Please try to use the below command for your req.
Code:
awk 'NR%2==0{print "METAR " $0 "="} NR%2!=0 {print $0}' 1

Thanks,
Mani
Last edited by Franklin52; 10-10-2011 at 04:41 AM.. Reason: Please use code tags, thank you
# 3  
Old 10-10-2011
Code:
awk '!(NR%2){$0="METAR " $0 "="}1' file

# 4  
Old 10-10-2011
Code:
# sed '/^2011/!s/.*/METAR &=/' infile

# 5  
Old 10-10-2011
Code:
awk '!/^20/{$0="METAR " $0 "="}1' infile

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