使用 Bash 脚本自动下载 FTP 中添加的新文件

Question

我正在获取 FTP 使用以下脚本手动添加到路径的文件：由于此路径中的文件每天都会加载，我希望此代码能够在特定时间每天运行并仅制作脚本，请记住只下载新文件而不是整个路径中可用的文件。 #!/bin/bash 主机=ftp.example.com USER=ftp用户密码="*****"

ftp -inv $HOST <<EOF
user $USER $PASSWORD
cd /path/to/file
mget *.html
bye
EOF

Answer 1

对于任何需要的人：这已通过以下代码解决：首先我连接到 FTP 服务器，然后我将加载文件的名称和时间保存在单独的文本文件中，然后将我的系统时间与加载文件的时间进行比较，因此使用此代码我可以自动下载新文件。

#!/bin/bash


use strict;
use warnings;
use diagnostics;

# Login credentials

user='*****' #Do not forget to enclose inside single or double quotes

pass='*****'

directory='/RemoteDirectory/'

host='IP'



# Set time

# perl -e 'print time' will return the current time in Unix epoch format

# So if you substract 43200, that should give you the current time minus 30 minutes in Unix epoch format:

time=$(perl -e 'print time-43200')



# Connect to host and download the listing of the remote directory

ftp -n $host <<END_GET_LIST

        quote USER $user

        quote PASS $pass

        cd $directory

        ls -l /LocalDirectory/ftpList.txt

        quit

END_GET_LIST

# Disconnect from remote host



# Save the 6th, 7th, and 8th field of the directory listing (i.e. Aug 15 5:15) of each line into file Dates.txt

awk -F ' ' '{print ,,}' /LocalDirectory/ftpList.txt > /LocalDirectory/'Dates.txt'



# Save the 9th field of the directory listing (file name) of each line into file Files.txt

awk -F ' ' '{print }' /LocalDirectory/ftpList.txt > /LocalDirectory/'Files.txt'



linenum=0 #Auxiliary variable for sed.



while read list; do

        linenum=$((linenum+1))

        #Convert the modification datetime of each file to Unix's epoch

        epoch=$(perl -MFile::stat -e "print stat('$list')->mtime")

        if [ $epoch -gt $time ] ; then

                file=$(sed -n "${linenum}p" Files.txt)  #If the condition is satisfied, use sed to get the name of the file

                 #in the same line of Files.txt.

#Connect again and download file when the condition above has been satisfied.

                ftp -n $host <<END_RETRIEVE

                        quote USER $user

                        quote PASS $pass

                        cd $directory

                        get $file

                        quit

END_RETRIEVE

        fi

done < /LocalDirectory/'Dates.txt'

使用 Bash 脚本自动下载 FTP 中添加的新文件

Downloading New Files Added in FTP Automatically With Bash Script

linux

ftp

bash

scripting

file-transfer