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Passing a MySql password from bash script


 
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# 1  
Old 11-25-2009
Passing a MySql password from bash script

Hi all,

I am running this script on Mandrakelinux release 10.1, 2.6.8.1-12mdksmp #1 SMP
I have also installed 'expect' separately.

I have created an Rsync script, but before any Rsync command does run, a MySql dump must be done first, and I am battling a bit to pass the MySql password from the bash script.

This is what my script looks like:
Code:
#!/bin/bash

VAULT='backupserver'
RSYNC=`which rsync`
DATE=$(date +%Y-%m-%d.%H:%M)
LOG="/tmp/MySql-$DATE.log"
MYSQLDUMP='/usr/local/mysql/bin/mysqldump'
BACKUPDIR='/Data/Mysql_Backups'
PASS='/root/.credentials'

backup () {
    VAR=$(expect -c "
        spawn "$MYSQLDUMP -u root -p database_1 $BACKUPDIR/backup.sql"
        expect \"password:\"
        send \"$PASS\r\"
        expect \"\\\\$\"
    ")
    echo "==============="
    echo "$VAR" 

        $RSYNC -e ssh -avl --delete --stats --progress $BACKUPDIR/backup.sql    root@$VAULT:/vault2/Backups/MySql    >> $LOG
        rm -rf $BACKUPDIR/backup.sql
}

backup

The output I get when running the script is:
Quote:
expect: invalid option -- u
usage: expect [-div] [-c cmds] [[-f] cmdfile] [args]
===============
spawn /usr/local/mysql/bin/mysqldump
rsync: link_stat "/Data/Mysql_Backups/backup.sql" failed: No such file or directory (2)
rsync error: some files could not be transferred (code 23) at main.c(692)
Thanks for the help.
# 2  
Old 11-25-2009
Try something like this:

Code:
#!/usr/bin/bash
PASS=blah
echo "
spawn /bin/bash
send \"mysqldump -u root -p database_1 my_table\r\"
expect \"password:\"
send \"$PASS\r\"
expect \"$ \"
" | expect >backup.sql

tyler_durden
# 3  
Old 11-26-2009
mysql -u{user} -p{password}

why to use expect here - you could pass password directly..

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