Hacking shell scripts

Using sh to download files.

#!/bin/sh

# USAGE: dload.sh ftp://hostname.com/pub/filename.tar.gz

path=$1
`wget -U lynx $path`

Using sh to backup mysql databases

#!/bin/sh
# Filename: backup.sh
# Function: do daily backups of databases
# updated 
# -- added changelog to this file



# Change To fit your system
userid=root
# On my development system I don't have the root password
# You will also need add -p${password} to
#password=passwd

# Create a cron job to run every night at 4:30am 
# 30 04 * * * /patch/to/pccs_mysqladm/bin/backup.sh

# Location of Mysql bin directory
mysqlbinclient="/usr/local/bin/mysql -u${userid}"
mysqlbindump="/usr/local/bin/mysqldump -u${userid}"

# Location of Mysql Database backup directory
dbbackupdir=/home/www/htdocs/pccs_mysqladm/dumpfiles

$mysqlbinclient  -e 'SHOW DATABASES' | sed 's/|//g' | grep -v 'Database' \
 | while read dbname; do
if [ -d $dbbackupdir/${dbname}_db ]; then
echo -n  2>/dev/null 
else
 mkdir $dbbackupdir/${dbname}_db
fi

curr_time=`date | sed 's/ //g' | sed 's/:/_/g'` 
$mysqlbindump --opt ${dbname}  >
$dbbackupdir/${dbname}_db/${curr_time}.${dbname}_dumpsql.BACKUP 2>/dev/null