#1 2009-11-30 00:47:56
console的另類用途
一般來說, console線最主要的用途是看訊號的輸出. 而在console下也可以下指令, 換句話說, 已有一層shell.
若不熟悉screen命令的操作, 就可以在console下指令, 關閉console後, 該指令仍會持續執行.
例如: 使用mc或curl等, 到FTP站台下載ISO檔. 若於Telnet下操作, 當關閉Telnet client(或電腦關機), 其命令也隨之中斷. 若改用console下指令, 則可達成廣義之離線下載.
舉例來說:
# curl -Ov ftp://ftp.twaren.net/pub/Linux/Mandrake/of
ficial/iso/2010/mandriva-linux-free-2010.0-x86_64.iso
< 220---------- Welcome to Pure-FTPd [privsep] [TLS] ----------
< 220-You are user number 33 of 2000 allowed.
< 220-Local time is now 00:15. Server port: 21.
< 220-Only anonymous FTP is allowed here
< 220-IPv6 connections are also welcome on this server.
< 220 You will be disconnected after 5 minutes of inactivity.
> USER anonymous
< 230-#############################################################
< 230-# WELCOME TO TWAREN Public FTP service #
< 230-# #
< 230-# F T P . T W A R E N . N E T #
< 230-# #
< 230-#############################################################
< 230-Our server is working with 9.5 TB disk and very fat network.
< 230-This server is certified as one of official download server
< 230-by many projects. If you have problems, please contact to
< 230-ftpadmin@twaren.net.
< 230 Anonymous user logged in
> PWD
< 257 "/" is your current location
> CWD pub
< 250 OK. Current directory is /pub
> CWD Linux
< 250 OK. Current directory is /pub/Linux
> CWD Mandrake
< 250 OK. Current directory is /pub/Linux/Mandrake
> CWD official
< 250 OK. Current directory is /pub/Linux/Mandrake/official
> CWD iso
< 250 OK. Current directory is /pub/Linux/Mandrake/official/iso
> CWD 2010
< 250 OK. Current directory is /pub/Linux/Mandrake/official/iso/2010
> EPSV
< 229 Extended Passive mode OK (|||29247|)
> TYPE I
< 200 TYPE is now 8-bit binary
> SIZE mandriva-linux-free-2010.0-x86_64.iso
< 213 4612685824
> RETR mandriva-linux-free-2010.0-x86_64.iso
< 150-Accepted data connection
< 150 4504576.0 kbytes to download
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 4399M 0 0 0 0 0 0 --:--:-- 0:00:02 --:--:-- 0{ [data not shown]
2 4399M 2 101M 0 0 62862 0 20:22:57 0:28:12 19:54:45 51907
這時可關閉終端機視窗, 睡覺去. curl還是會無怨無悔的持續下載.
離線
#2 2009-12-23 00:17:47
Re: console的另類用途
剛剛試了一下telnet進入後用
nohup curl -Ov ftp://ftp.twaren.net/pub/Linux/Mandrake … x86_64.iso &
竟然可以離線下載，真是太神奇了！
離線
