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Need to retain particular rows

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# 1  
Old 07-14-2010
Need to retain particular rows
Hi All,
I am in need of help to retain particular rows. I have a large file with 5 columns. Column 3 has signs like “=” “>” “<” and column 5 has values “nm” “%” or empty space.
I need to keep only rows which have “=” in column 3 and “nm” in column 5. How can I do it in awk? Any help is greatly appreciated.

cat File1:
Code:
Column1          Column2          Column3          Column4          Column5
123                  value                =                      10                    nm
1553                value                =                      10                    nm
1233                value                >                      50                    nm
1623                value                =                      20                    %
1128                value                =                      60                    
175                  value                =                      60                    nm

Needed Output:
Code:
Column1          Column2          Column3          Column4          Column5
123                  value                =                      10                    nm
1553                value                =                      10                    nm
175                  value                =                      60                    nm

Thanks in advance
NP
# 2  
Old 07-14-2010
Code:
nawk 'NF==5 && $3=="=" && $NF=="nm"' File1

This User Gave Thanks to vgersh99 For This Post:
newpro
# 3  
Old 07-14-2010
Code:
awk '$3=="=" && $5=="nm" {print}' infile

Edit (improvement):
Code:
awk '$1=="Column1" || $3=="=" && $5=="nm"' infile

Last edited by pseudocoder; 07-14-2010 at 01:01 PM..
This User Gave Thanks to pseudocoder For This Post:
newpro
# 4  
Old 07-14-2010
vgersh99, pseudocoder, Thanks a lot... Both works nicely....
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