I need to write a shell script, which takes host, user name and password automatically logs into ftp server. 

Solution:

Sample Shell Script on ftp:

#!/bin/ksh
bindir="/home/ftp/bin"
logdir="/home/ftp/log"
ftp="/usr/bin/ftp"
Email="[Some E-mail Address]"
IP="10.124.33.29"
user="[user-id]"
pass="[password]"
ifile="[source file]"
ofile="[destination file]"
type="asc"
myname=`basename $0`
verbose="verbose"
dd=`date +%d`
log="$logdir/$myname.$dd.log"
host=`hostname`
rc=0
boj=`date`

exec 1>$log 2>&1

echo "\n#####  Begin FTP Parameters  #####\n"
echo "Program Name:        $myname"
echo "Process ID:          $$"
echo "Log file name:       $log"
echo "Email:               $Email"
echo "Source Machine       $host"
echo "Destination Machine: $IP"
echo "User ID:             $user"
echo "Password:            ##############"
echo "Source File:         $ifile"
echo "Destination File:    $ofile"
echo "\n#####  End FTP Parameters  #####\n\n"

echo "#####  Begin FTP Session  #####\n"

echo "open $IP
      user $user $pass
      $verbose
      $type
      put $ifile $ofile
      close
      quit" |$ftp -n

echo "\n#####  End FTP Session  #####"

foo=`grep -i "cannot" $log`
if [ "$?" -eq "0" ] ; then
   rc=1
   status="Destination file does not exist\n"
fi
foo=`grep -i "does not" $log`
if [ "$?" -eq "0" ] ; then
   rc=1
   status="${status}Source file does not exist\n"
fi
foo=`grep -i "killed" $log`
if [ "$?" -eq "0" ] ; then
   rc=1
   status="${status}File transfer process has abended\n"
fi
foo=`grep -i "space" $log`
if [ "$?" -eq "0" ] ; then
   rc=1
   status="${status}Ran out of disk space before completion of copy\n"
fi

if [ "$rc" -eq "0" ] ; then
   status="Successful"
fi

eoj=`date`
echo "\nJob start time:   $boj"
echo "Job end time:     $eoj"
echo "\nResult code:      $rc ($status)"

mail -s "FTP results from $myname" $Email <$log

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