#!/bin/bash

#
serverip=127.0.0.1
serveruser=username
serverpass=passwd
remotedir=./
localdir=~/ftp_data
getftp(){
#
_st=date +%s
echo "-----------------------------------------------------------------------------------------------------"
echo "[date +"%F %T.%N"] - start ftp download on " $serverip
ftp -ivn $serverip << END_FTP
open $serverip
user $serveruser $serverpass
binary
cd $remotedir
ls
lcd $localdir
mget test.txt
close
bye
END_FTP
echo "local directory listing"
ls -l $localdir/.txt
echo -e "[date&nbsp;+"%F&nbsp;%T.%N"] - completed,using expr&nbsp;$(date&nbsp;+%s)&nbsp;-&nbsp;$_st secs."
}
getlftp(){
#
_st=date&nbsp;+%s
echo "-----------------------------------------------------------------------------------------------------"
echo "[date&nbsp;+"%F&nbsp;%T.%N"] - start lftp download on " $serverip
lftp $username:$passwd@$serverip << END_FTP
set xfer:clobber on
cd $remotedir
ls
lcd $localdir
mget test.txt
quit
END_FTP
echo "local directory listing"
ls -l $localdir/.txt
echo -e "[date&nbsp;+"%F&nbsp;%T.%N"] - completed,using expr&nbsp;$(date&nbsp;+%s)&nbsp;-&nbsp;$_st secs."
}
wgetftp(){
_st=date&nbsp;+%s
echo "-----------------------------------------------------------------------------------------------------"
echo "[date&nbsp;+"%F&nbsp;%T.%N"] - start ftp download on " $serverip
echo "remote directory listing"
curl ftp://$serverip -u $username:$passwd
curl ftp://$serverip/test.txt -u $username:$passwd -o test.txt
wget -O test.txt ftp://$username:$passwd@$serverip/test.txt
wget -nH -m ftp://$username:$passwd@$serverip/
echo "local directory listing"
ls -l $localdir/*.txt
echo -e "[date&nbsp;+"%F&nbsp;%T.%N"] - completed,using expr&nbsp;$(date&nbsp;+%s)&nbsp;-&nbsp;$_st secs."
}
#
ftp_download(){
while true
do
    _week=date&nbsp;+%w
    _hour=date&nbsp;+%H%M
    if [ $_week -gt 0 -a $_week -lt 6 -a $_hour -ge 900 -a $_hour -le 1530 ]; then
        wgetftp >> ./logs/get_ftp.log.date&nbsp;+%F 2>&1
       getftp >> ./logs/get_ftp.log.date&nbsp;+%F 2>&1
    fi
    sleep 30
done
}
#
ftp_download</pre> 
來自： http://my.oschina.net/kind790/blog/599902