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Full Discussion: Conditional bash/mysql query help
Top Forums Shell Programming and Scripting Conditional bash/mysql query help Post 302936983 by jcass78 on Monday 2nd of March 2015 12:04:38 PM
Old 03-02-2015
Conditional bash/mysql query help
I think(hope) I've got a simple one - I just need to send an email if a mysql query returns any results (ideally - it will never match).

Currently I just pipe the mysql query output to the mail program, but of course that emails regardless of the output( and I check this every 10 minutes from cron, so that's a lot of mail when it's empty).

I only want to send mail (the actual mysql output) if there is anything returned from the query.

Here is my query - ideally it will never find any messages that meet those conditions, but if it does, I need an email sent with the results of the query.

Code:
mysql -e 'select new_messages,FROM_UNIXTIME(last_purge_at)
  AS 'last_purge_at',comment
  FROM zimbra.mailbox
  WHERE new_messages > 0
  AND last_purge_at < DATE_SUB(NOW(),INTERVAL 10 MINUTE)' \
  | mail -s "Zimbra email overdue" user@email.com

Anyone got any suggestions? Thanks in advance
Last edited by rbatte1; 03-02-2015 at 01:08 PM.. Reason: Split up long line to make it more readable
 

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LEARN ABOUT DEBIAN

cvm-mysql

cvm-mysql(8)						      System Manager's Manual						      cvm-mysql(8)

NAME

       cvm-mysql - MySQL module

SYNOPSIS

       cvm-mysql

CREDENTIALS

       Pass phrase

DESCRIPTION

       This module queries a MySQL database for the account name, compares the stored pass phrase with the given one using crypt(3).

CONFIGURATION VARIABLES

       CVM_MYSQL_DEFAULT_FILE
	      The  full  path of the defaults file to read if the following variable is set.  If not set, the file $HOME/.my.cnf will be read (the
	      MySQL default).

       CVM_MYSQL_DEFAULT_GROUP
	      If set, the module will read connection default options from the named group in the defaults file as above

       CVM_MYSQL_HOST
	      The hostname or IP of the MySQL server.  If not set, a connection to the local host is assumed.

       CVM_MYSQL_USER
	      The MySQL login ID to connect as.  If not set, the invoking user is assumed.

       CVM_MYSQL_PASS
	      The password for the above user.

       CVM_MYSQL_DB
	      The database name, must be set.

       CVM_MYSQL_PORT
	      The port number for the TCP/IP connection (only used if the server is not local).

       CVM_MYSQL_POSTQ (optional)
	      The SQL query to execute after the credentials have been validated, see cvm-sql(7).

       CVM_MYSQL_PWCMP (optional)
	      The password comparison module to use.

       CVM_MYSQL_SOCKET
	      The path to the socket that should be used for connections to a local server.

       CVM_MYSQL_QUERY (optional)
	      The SQL query to issue to retrieve the row containing the account information from the database, see cvm-sql(7).

SEE ALSO

       cvm-sql(7), cvm-pgsql(8), cvm-pwfile(8), cvm-qmail(8), cvm-unix(8), cvm-vmailmgr(8),  cvm-benchclient(8),  cvm-checkpassword(8),  cvm-test-
       client(8)

	http://untroubled.org/pwcmp/pwcmp.html
	http://untroubled.org/cvm/cvm.html

																      cvm-mysql(8)
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