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Full Discussion: Using a shell script variable in a mysql query using 'LIKE'
Top Forums Shell Programming and Scripting Using a shell script variable in a mysql query using 'LIKE' Post 302515033 by bricoleur on Monday 18th of April 2011 07:40:07 PM
Old 04-18-2011
Using a shell script variable in a mysql query using 'LIKE'
Hello. I am writing a simple script that reads a text file and removes records from a mysql database. The items in the text file are of the format:

firstname.middle.lastXXX, where XXX is a 3 digit number. The table has an email field that will match the firstname.middle.last. So, I thought I would use a LIKE statement and the corresponding wildcard (%) at the end. Here is what I have tried:
Code:
for x in `cat /etc/names.txt`
do
 
   echo "delete from main where email LIKE '$x . "%"'" | mysql -h my.server.name --user=myuser --password='mypass'
done

The problem is with the wildcard % and using it with the $x variable. I have tried different formats of this and can't make it work. I have searched around and have seen different solutions, but none have worked for me. I welcome ideas that will get me beyond this...thanks.
Last edited by Franklin52; 04-19-2011 at 04:50 AM.. Reason: Please use code tags
 

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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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