script...

download_log.sh

#!/bin/sh

# ==========
# help
# ==========

function _help() {
cat << EOS
this script download file from servers written in server list file

-h help
-s server list file
-p download log path
-o output dir

ex:

./download_log.sh -s server_list.txt -p /var/log/dais0n/access.log -o /tmp

EOS
}

# ==========
# argument
# ==========
while getopts n:c:h:f:p:o: OPT
do
  case $OPT in
    h) _help
       exit 0
       ;;
    f) server_list_file=$OPTARG
       ;;
    o) output_path=$OPTARG
       ;;
    p) download_path=$OPTARG
       ;;
   \?)  _help
       exit 0
       ;;
  esac
done

# ==========
# main
# ==========

while read server
do
  [ -d ${output_path}/${server} ] || mkdir -p ${output_path}/${server}
  scp -oStrictHostKeyChecking=no ${server}:${download_path} ${output_path}/${server}
done < ${server_list_file}