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Hello - Have a big issue need help please ASAP

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Top Forums Shell Programming and Scripting Hello - Have a big issue need help please ASAP
# 8  
Old 04-04-2011
ctsgnb - thx It looks like its working .. tring t ounderstand the code
can u please explian?
# 9  
Old 04-04-2011
Quote:
Originally Posted by mnassiri
ctsgnb - thx It looks like its working .. tring t ounderstand the code
can u please explian?

Code:
# awk '/ALPHANUMERIC/&&$(NF-2)>27&&$(NF-2)<256' infile

NF is the total number of fields of the line that is currently scanned (by default, awk will consider every succession of one or more blank character (mainly space & tab) as 1 separator between 2 fields.
$NFrefer to the value of the last field
$(NF-1)refer to the value of field NF-1
$(NF-2)refer to the value of field NF-2
/ALPHANUMERIC/select lines that contains the pattern "ALPHANUMERIC"
&& logical AND condition
$(NF-2)>27 select lines whose field NF-2 has a value greater than 27
$(NF-2)<256 select lines whose field NF-2 has a value lower than 256
The default action will be to print the lines that matched the specified conditions

You can get more info here
This User Gave Thanks to ctsgnb For This Post:
mnassiri
# 10  
Old 04-04-2011
Gtsgnb

SmilieSmilieSmilie

Thanks for the explaination.
Sorry for delayed response - Got tide up - But this was really helpful !!
I Appreciate it very much>

Lat question:

Within the same command would it possible to "sort" by the length defined for the alphanumeric field ?
# 11  
Old 04-04-2011
Code:
nawk '/ALPHANUMERIC/&&$(NF-2)>27&&$(NF-2)<256 {print $(NF-2),$0}' infile | sort -k1n,1 | cut -d ' ' -f2-

# 12  
Old 04-04-2011
Quote:
Originally Posted by mnassiri
corona688 the code u provided that goes inside a script
The complete English sentence? I don't understand what you want.

"u" is not a word, either.
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