3,715 reputation
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bio website ellipsix.net
location Wuhan, China
age 28
visits member for 5 years, 4 months
seen yesterday

I'm a postdoc doing research in high-energy particle physics. I also have a hobby interest in computer programming.

You can find me on Twitter, or check out my blog and personal website!

For matters not related to Stack Exchange, I can be contacted by email at stack@ellipsix.net.


May
1
comment Basic security practices for desktop Ubuntu
Mostly these tips are relevant for a server setup, not a desktop. It is true for Linux in general, though, that viruses and malware are not much of a problem, at least not compared to Windows, for exactly the reason stated.
Apr
28
comment sudo access for desktop actions in Gnome/KDE?
@Jakobud: if you think that's difficult, try doing the same thing in Windows ;-) You do have a point, though: allowing privilege escalation for file copy/move operations could be a useful feature that KDE does not currently have, probably because nobody's felt the need strongly enough to implement it.
Apr
26
comment Quick, Linux-compatible unit-aware calculator
+1 So am I, although my user interface (the Qalculate plasmoid for KDE) doesn't offer a way to express a result in specified units. I work around it by dividing my result by the units I want. I forget whether the full interface, if it even still exists, can do that. (Just so it's clear: even with the UI limitations, it's still my favorite calculator for anything I don't need Mathematica for)
Apr
25
comment rm -rf not erasing directory
@quack: well... it doesn't really answer the question, just says that the problem went away.
Apr
25
comment rm -rf not erasing directory
This sort of thing should probably be left as a comment, not an answer.
Apr
24
comment Internet Explorer is missing the address bar
When I started reading I thought you were going to say that MS Support had instructions for what to do when your cat walks across your keyboard ;-)
Apr
18
comment Need a Linux command that takes much time
Yes, and I wasn't asking why he needs it, I was asking what exactly he needs. There's a difference.
Apr
16
comment Change desktop background at school
Depending on how friendly your school's IT people are, you could always ask them about it. Not that I'd expect them to change the policy, but they might at least have something to tell you about why changing the background is restricted behavior.
Apr
16
answered How safe is locking the screen?
Apr
16
comment Need a Linux command that takes much time
It actually depends on your requirements... do you need this command to be doing something non-trivial while it's running? For instance, are you looking for something that will access the hard drive for a certain amount of time? Or rearrange values in RAM, or transmit continuous network traffic for that time? Or do you just want something that will not return for a certain amount of time? (That's sleep) And what exactly do you mean by "much time"? Some specific amount of time, or indeterminate-but-longer-than-X-seconds, or what?
Apr
4
comment Removing the CPU while the power is on
One for the Mythbusters perhaps?
Mar
20
comment What is the easiest way to free space on a hard drive?
Indeed, cron the concept is cross-platform (and I will state for the record that I am a Linux user, and have never been a "Windows aficionado")
Nov
14
comment How can I visualize the file system usage on Windows?
+1 (and yes KDirStat was the original, WinDirStat is the copy)
Nov
14
comment Is there anything like HashTab for Linux?
Which desktop environment (or really, which file manager) are you using?
Oct
21
comment Commandline complete list of commands
I think you can set the environment variable PAGER to /usr/bin/less (or whatever the full path to less is), and then bash will use less for paging.
Oct
21
comment Using Linux Advantages in web development invironment?
The GIMP is a perfectly capable substitute for Photoshop, though.
Oct
20
answered The 32-bit Win 7 Trial can be downloaded but 64-bit cannot. Anyone see that same issue?
Sep
28
comment Is there any practical reason to dual-boot Linux alongside Windows?
Sounds like you were trying to abuse the system a bit... Ubuntu is supposed to be a more "user-friendly" Linux distro, i.e. it hides things from you to keep less technical users from getting overwhelmed. If you want to do things like switching from Gnome to KDE in mid-installation, Ubuntu isn't for you.
Sep
24
comment How to reset computer without pressing 'reset button'
For the record, no need to prefix with sudo if you're already logged in to the terminal as root.
Sep
16
comment How to copy files to an untrusted computer?
It would give you access to the other machine, and not even full access, just whatever level of access the user you log in as has. This is the way I've seen it done in the past (by some people who knew what they were doing) and what I'd recommend.