Easy Downloading Command For Linux (newbies)

[MGM 0]

How to download files and make your computer shutoff...

 

Open up a cosole... login as root

i.e.

depending on your distro

su root

Then enter your password

now cd to where you want your downloads to be in...

cd /home/user

or where ever you want your files

 

Then get the downloads urls you want and type this is console

wget [url="http://forums.xisto.com/no_longer_exists/; 1 && wget [url="http://anotherone.com/rg-erdr.php?_rpo=t; && poweroff

Then press enter

 

And you can leave your computer running knowing that it will turnoff when your done!

 

--- Make sure you have the wget package installed!

[yordan 10]

is "poweroff" safe ? I don't know this command. Does poweroff sync the filesystem cache ?I usually don't use poweroff, I "shutdown -g 0 -h"

[qwijibow 0]

No !!!!!
No No No No No....
NOOOOOOOOOOOOOOO.

This is a security problem.

wget does NOT need root privilages to download files to your home directory.
any bugs in wget that allow arbitary code to run would run as root.

as a normal user, the damage an attacker can do is limited.. as root, an attacker could install root kits and other nasties !


The correct thing to do, would be to set SUID on /sbin/shutdown, and as a NORMAL user..

wget whatever; shutdown -h now

or setup sudo to allow normal users to run shutdown as root and use

wget whatever; sudo shutdown -h now

ALSO.... use of the '&&' would prevent the machine from shuting down if the download fails (think of the electiricity bill)
use ';' so that the shutdown will run whenever wget exits (even with EXIT_FAILURE)

Also, maybe pipe wget stdout so that you can confirm that the download finished succesfully when you reboot.