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# 1  
Old 01-27-2011
awk help
If i try this awk out put is coming like below
awk '{print $1"\t" $2"\t" $3"\t"$4"\t"$5"\t" $6"("$7")""\t"$8"\t"$9"\n"}' test1.csv

Code:
current out put:
----------
ALTER   TABLE   TABLE1  add    COL1     SMALLINT(2)      NO YES
ALTER   TABLE   TABLE1  add    COL1     CHAR(2)      YES NO
ALTER   TABLE   TABLE1  add    COL1     VARCHAR(2)      NO YES
 
desired
------
ALTER   TABLE   TABLE1  add    COL1     SMALLINT(2)      NOTNULL  WITHDEFAULT
ALTER   TABLE   TABLE1  add    COL1     CHAR(2)      
ALTER   TABLE   TABLE1  add    COL1     VARCHAR(2)      NOTNULL WITHDEFAULT YES

if $8=NO then it should replace with NOTNULL ,if $9 is YES it should replace with WITHDEFAULT
if $8=YES and $9=NO tthen it should replace with nothing.

can some body suggest how to implement this ?
# 2  
Old 01-27-2011
Try:
Code:
awk '$8=="YES" && $9=="NO"{$8=$9=""}$8=="NO"{$8="NOTNULL"}$9=="YES"{$9="WITHDEFAULT"}1' OFS='\t' test.csv

Last edited by Klashxx; 01-27-2011 at 05:11 AM.. Reason: Mistake: Used FS instead OFS
# 3  
Old 01-27-2011
Code:
awk '{print $1,$2,$3,$4,$5,$6"("$7")",$8=="NO"?"NOTNULL":x,$9=="YES"?"WITHDEFAULT":x}' OFS="\t" infile

# 4  
Old 01-27-2011
Thanks for your inputs,
can some body suggest good awk scrpting books .i already learnt about awk little.but trying to improve my skills in awk scripting.
Regards
# 5  
Old 01-27-2011
Look for "sed & awk, Second Edition" from O'Reilly.
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