将前面的输出作为后面命令的参数的方法（2种）
find / -name ".bash*" -exec ls {} -al ";" | grep bash
find / -name ".bash*" | xargs ls -al
"apt-get install lftp" or "apt-get install lftp-ssl", i compiled it myself from lftp.yar.ru lftp上传&下载文件夹(只能使用lftp) connect to your ftp and input the command: mirror -R <the local dirname> this will upload the whole directory. 上传整个文件夹：mirror -R 本地文件夹 or type this: mirror <the remote dirname> <the local dirname> this will download the whole directory. 下载整个文件夹：mirror 远端文件夹 本地文件夹