how to run cron job to truncate database table Post: 302263813

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Top Forums UNIX for Dummies Questions & Answers how to run cron job to truncate database table Post 302263813 by wingchun22 on Tuesday 2nd of December 2008 02:23:24 PM

12-02-2008

Registered User

hi just been playing around with the code listed

got around to this

Code:

TABLE_NAME=userips
USER_NAME=user
IP_ADDR=localhost
PASSWORD=password
somevar=`echo "TRUNCATE TABLE userips" | mysql -h $IP_ADDR -u $USER_NAME -p $PASSWORD $TABLE_NAME `
echo $somevar

just a few questions though

do i not need to add in my database name somewhere in there as i have around 20 databases on this server

also the somevar= part , is that looking correct or should that be placed after the mysql command

also finally what type of file do i save this as , should it be a .sh file, then do you no the correct syntax i should enter in cron to enable this to run every day

i used something like this to backup my database every day

Quote:

0 0 * * * /usr/bin/mysqldump -u user database -p pass > /var/www/vhosts/mysite.com/httpdocs/sql-backup/dbbackup.sql

but i'm not to sure how to modify this in order to change it to truncate or delete info from just one table

the userips table fills up very quickly with lots of ips(10,000 per day), thats why i need to delete hem every day

its a pain having to login to phpmyadmin every day to just click the truncate table button on the usrips table

wingchun22

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LEARN ABOUT DEBIAN

dbs_dumptabstruct

DBS_DUMPTABSTRUCT(1p)					User Contributed Perl Documentation				     DBS_DUMPTABSTRUCT(1p)

NAME

       dbs_dumptabstruct - Creates file set with SQL table schemas

DESCRIPTION

       dbs_dumptabstruct is an utility to create a file set with SQL table schemas.  For each table in the database dbs_dumptabstruct calls the
       appropriate dumper utility with the output directed to a file named table.sql in the current directory. dbs_dumptabstruct asks for a pass-
       word if necessary.

COMMAND LINE PARAMETERS

       Required command line parameters are the DBI driver ("Pg" for Postgres or "mysql" for MySQL) and the database name. The third parameter is
       optionally and specifies the database user and/or the host where the database resides ("racke", "racke@linuxia.de" or "@linuxia.de").

COMMAND LINE OPTIONS

       -d=OPTIONS, -o=OPTIONS, --dump-options=OPTIONS

       Pass options to the dumper utility, e.g. "--compatible=mysql40".

       -p, --pipe

       Prints the table dumps to standard output.

       -t TABLE[,TABLE,...], --tables=TABLE[,TABLE,...]

       Comma-separated list of tables to dump.

       --exclude-matching-tables=REGEXP

       Excludes any table matching the regular expression REGEXP from dumping.

BUGS

       Only mysql and Pg drivers are supported.

AUTHOR

       Stefan Hornburg (Racke), racke@linuxia.de

VERSION

       0.17

SEE ALSO

       perl(1), DBIx::Easy(3)

perl v5.8.8							    2007-02-01						     DBS_DUMPTABSTRUCT(1p)