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Full Discussion: awk within awk
Top Forums Shell Programming and Scripting awk within awk Post 302904914 by Don Cragun on Saturday 7th of June 2014 05:28:44 PM
Old 06-07-2014
Quote:
Originally Posted by sidnow
The Mathcing code was just a general statement

Code:
$5 ~ /Match/ {
        if (NR==0) print "No data"
        else print "<tr>"
        for(i=1;i<=NF;i++)
                print "<td>" $i"</td>"
        print "</tr>"
}

So say I want to check if Jack has any rent pending and if Yes then, send an email

Code:
$5 ~ /Jack/ {
        if (NR==0) print "No data"
        else print "<tr>"
        for(i=1;i<=NF;i++)
                print "<td>" $i"</td>"
        print "</tr>"

As I said before, NR is the number of records read so far from all input files being processed by this invocation of awk. It will NEVER be 0. And there is absolutely nothing in this code that checks to see whether or not a payment is pending.

Furhtermore, $5 ~ /Jack/ will match Jackie and Jackson as well as Jack.
Quote:
Originally Posted by sidnow
His email address would be defined in the BEGIN section of awk
Code:
awk -F, '
        BEGIN{
            print "To: Jack@123.com"
}


So in reality, I have 10 users, and each users email address has been entered.

So I have 10 awk BEGIN, END Scripts each holdin the 10 users email addresses.

Requirement, only send email to the users who has rent pending
And each user will get email whether or not they have any pending transactions. I strongly agree with RudiC; you need to take a step back and look at the logic you want to use to solve your problem.

Your current approach is to create 10 different scripts to send email to 10 different users and then figure out if the user has any pending transactions. That does not seem to do what you say you want.

You haven't said anything at all about whether it is possible for one user to have more than one pending transaction. And, if they do, whether they should get one email with all of their pending transactions or one email for each pending transaction.

Is each user's email address just name@abc.com where name is the contents of the last (not necessarily the 5th) field in your input file?

Do you really want the headings:
Code:
Data1   Data1   Data1   Data1   Data1e

in the email you send to your users? (The last heading is Data1e in your first script and another Data1 in others.) Are the headings constants, or should they be pulled from the 1st line of your input file? Do you really want to address each user as All? Why not user their name?

If each user is only getting a list of their transactions, why does the email to that user need to include a column in the table for that user's name? If each user is only getting a list of their PENDING transactions, why does the table need to include a column that will always say Pending? If more than one transaction can be sent to a single user, should there be a Total line? Is there a due date associated with any of these transactions?
 

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