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Getting data from a flat file based on condition

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# 15  
Old 01-28-2014
This gives exit code 1 if 1 line of the file has a 0 in both the columns:
Code:
awk '{n=$6==0 && $7==0?1:n} END{if(n)exit 1}' file

And this gives exit code 1 if all the lines have a 0 in both the columns:
Code:
awk '{n=$6==0 && $7==0?n+1:n} END{if(n==NR)exit 1}' file

Make your choice. Smilie
# 16  
Old 01-28-2014
Quote:
Originally Posted by Vivekit82
Yes..no email should be sent and entire program should be skipped if both columns have 0 in all the lines.
I think he wants this, not sure
Code:
# All are zero
$ cat <<eod | awk -F, 'BEGIN{s=1}s{f=($1==0 && $2==0)?1:0}f==0{s=0}END{print f}' 
0,0
0,0
0,0
0,0
eod
1

# Not all are zero
$ cat <<eod | awk -F, 'BEGIN{s=1}s{f=($1==0 && $2==0)?1:0}f==0{s=0}END{print f}' 
0,0
0,0
0,0
0,1
eod
0

--edit---

Code:
$ awk -F, 'BEGIN{s=1}s{f=($1==0 && $2==0)?1:0}f==0{s=0}END{exit(f)}'

exit 1 if column6 and column7 are zero in all line, exit 0 if column6 and column7 are not zero in all line

Code:
$ awk 'BEGIN{s=1}s{f=($6==0 && $7==0)?1:0}f==0{s=0}END{exit(f)}'

Last edited by Akshay Hegde; 01-28-2014 at 03:50 PM.. Reason: typo
# 17  
Old 01-28-2014
Thnaks..I tried the soln proposed by Corona and Franklin but still i am getting the mail if column 6 and cloumn 7 both are 0 in file.
I want that if in any row of the file (either or both) of cloumn 6 and cloumn 7 are non zero then only mail should come.
Mail should not come only if all the rows in both cloumn have 0 values( only 1 case..)

case 1
0,0
0,0
0,0

No mail should be sent

Case 2
0,1
0,0
0,0

Mail should be sent

Case 3
0,0
1,0
0,1
Mail should be sent and so on.
# 18  
Old 01-28-2014
Quote:
Originally Posted by Vivekit82
Thnaks..I tried the soln proposed by Corona and Franklin but still i am getting the mail if column 6 and cloumn 7 both are 0 in file.
I want that if in any row of the file (either or both) of cloumn 6 and cloumn 7 are non zero then only mail should come.
Mail should not come only if all the rows in both cloumn have 0 values( only 1 case..)

case 1
0,0
0,0
0,0

No mail should be sent

Case 2
0,1
0,0
0,0

Mail should be sent

Case 3
0,0
1,0
0,1
Mail should be sent and so on.
codetags please

Code:
$ cat <<case1 | awk -F, 'BEGIN{s=1}s{f=($1==0 && $2==0)?1:0}f==0{s=0}END{exit(f)}';echo $?
0,0
0,0
0,0
case1

1

$ cat <<case2 | awk -F, 'BEGIN{s=1}s{f=($1==0 && $2==0)?1:0}f==0{s=0}END{exit(f)}';echo $?
0,1
0,0
0,0
case2

0

$ cat <<case3 | awk -F, 'BEGIN{s=1}s{f=($1==0 && $2==0)?1:0}f==0{s=0}END{exit(f)}';echo $?
0,0
1,0
0,1
case3

0

# 19  
Old 01-28-2014
So you always want mail, unless the file is entirely zeroes in those columns? How about a running count then:

Code:
awk '{ T += $6 + $7 } END { exit(!T) }' inputfile

T is the count of ones. If it's zero, it exits with error status(should stop the if-statement), if it's nonzero it exits with success(should run the if statement).
# 20  
Old 01-28-2014
i tried the code suggested by Corona,case 1 is success but in others also i am not getting the mail.
Code:
 
Case 1
0,0
0,0
0,0

No mail..success

Code:
 
Case 2:
0,0
0,1
0,0

No Mail..Failed..We should get a mail in this case.
# 21  
Old 01-28-2014
Quote:
Originally Posted by Corona688
So you always want mail, unless the file is entirely zeroes in those columns? How about a running count then:

Code:
awk '{ T += $6 + $7 } END { exit(!T) }' inputfile

T is the count of ones. If it's zero, it exits with error status(should stop the if-statement), if it's nonzero it exits with success(should run the if statement).
Nice approach corona Smilie didn't come in my mind Smilie
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