159
votes
6answers
83k views

How to control Windows 7 snap feature with two monitors?

There is the Snap feature in Windows 7. But it seems to not work when dragging window to the edge that are adjoin to the second monitor. How to make it working? May be some regedit cheat or something? ...
156
votes
7answers
176k views

What are PATH and other environment variables, and how can I set or use them?

Questions about setting environment variables the PATH are very common here, and in most cases the answers are very similar to each other. In the future it would be nice to have a good Q/A for ...
155
votes
8answers
9k views

What do the parentheses and number after a Unix command or C function mean?

I keep seeing parentheses and a number after a command in Unix or Linux or C function. For example: man(8), ftok(2), mount(8), etc. What do these mean? I see them in man too.
155
votes
2answers
52k views

Assigning custom extensions to a language's syntax highlighting in Notepad++

In the current version of Notepad++ opening .sql files results in Notepad applying SQL syntax highlighting to it. I'd like Notepad++ to do the same for other extensions as well, is there some setting ...
154
votes
10answers
28k views

How to copy text from Console2?

I just started using Console2 as an alternative to cmd.exe I can't figure out how to copy text from the console to the clipboard -- dragging over it with the mouse won't mark anything, and there is ...
151
votes
19answers
27k views

32-bit vs. 64-bit systems

What are the differences between 32-bit and 64-bit systems? If you have used both of them, what kind of sharp differences have you experienced? Would it be a problem to use 32-bit programs on ...
149
votes
5answers
86k views

How to open files in vertically/horizontal split windows in Vim from the command line

There must be a way, something like this: vim -[option] <file-list> to open files from command prompt and not from within Vim. split windows vertically or/and horizontally in separate tabs ...
147
votes
15answers
19k views

Is the performance of a CPU affected as it ages? [closed]

This is a hypothetical question about how a CPU operates. If I purchase two identical CPUs, and use one long term (say one year), will it be identical in speed to the unused CPU? Will the number of ...
143
votes
5answers
89k views

Notepad++ is unable to load langs.xml, why?

Whenever I open NotePad++ the following error message appears: --------------------------- Configurator --------------------------- Load langs.xml failed! --------------------------- ...
142
votes
6answers
55k views

How can one turn off spell checking in Notepad++?

Notepad++ recently added built-in support for spell checking, and it is enabled by default. Where can I turn it off?
139
votes
8answers
21k views

How do I get a static IP address for my teapot?

I maintain this teapot: It returns a 418 error when it is pinged, and it is pinged regularly by people arriving from the relevant Wikipedia page. (For those interested, and there appear to be a few ...
138
votes
7answers
14k views

Why did dialup modems make noise?

I know that the signal was just tone pulses but why was it when (back in the 90s) when you first connected to the internet you heard a bunch of funny noises. After that if you were to use the ...
138
votes
9answers
21k views

Is it really possible for most enthusiasts to crack people's Wi-Fi networks?

Can most enthusiastic users (even if they are not professionals) use well-known techniques to break through the average home router's security? Some basic security options are: strong network ...
137
votes
3answers
12k views

Why are laptop screens sized the way they are?

We've been discussing this in the Comms Room on Serverfault, and thought it might make a good question on SuperUser...especially if there's a clear answer. The hope is that it is a Good Subjective ...
134
votes
25answers
126k views

What can I do to stop the Play / Pause button from opening iTunes?

In Snow Leopard the Play / Pause media button (on the F8 key) opens up iTunes. How can I disable that? Preferably keeping the old Leopard behaviour, so I can use it to control other media applications ...
133
votes
8answers
121k views

What is the “You have new mail” message in Linux/UNIX?

Sometimes, when I log into a box and 'su' to root, I get a cute little message saying I have mail (thank GOD it's not AOL). Where is this mail? What does it contain? Who/What sent it? How important ...
132
votes
6answers
101k views

Disable Java Plugin in Google Chrome?

This is the second time I've had a drive-by executable installed on my machine using the following: Google Chrome 6 (latest) Windows 7, UAC on This happened while I was browsing for images to add ...
132
votes
4answers
30k views

How to turn off word-wrap in less

Short version: How can I make the less utility in Linux not wrap lines? Long version: Often I need to view huge CSV files using less with hundreds of columns. I frequently only care about the first ...
131
votes
2answers
9k views

What is the reason that file URLs start with three slashes: “file:///” etc?

I was wondering why file URLs have 3 slashes in front. For example, if I were to read a pdf file using chrome, the URL would be file:///D:/Desktop/Book.pdf. This seems totally unnecessary. Since ...
131
votes
10answers
70k views

Why does 64-bit Windows need a separate “Program Files (x86)” folder?

I know that on a 64-bit version of Windows the "Program Files" folder is for 64-bit programs and the "Program Files (x86)" folder is for 32-bit programs, but why is this even necessary? By ...
130
votes
9answers
14k views

I accidentally typed password into bash command line

I accidentally typed my password into bash command line, mistaking the Last login: ... line for Wrong password (I was in a hurry). What do I do to cover my trace? What I did was editing .bash_history ...
130
votes
10answers
68k views

Why does the /winsxs folder grow so large, and can it be made smaller?

A Vista virtual machine I use only has a 10 GB virtual hard disk -- and I'm worried about it running out of space over time. I used TreeSize to check for the culprits.. And the primary culprit is ...
129
votes
15answers
258k views

How do I place a bootable ISO on a USB drive?

What's the best way of placing a bootable ISO on a USB drive? ISOs such as a live Linux preview disk, Windows installation ISO, etc.
128
votes
6answers
119k views

Inverting direction of mouse scroll wheel

Is there a way to make a mouse scroll wheel invert its direction? I'd like to scroll upwards and have that action scroll downwards and vice-versa. There is no setting on the Mouse control panel that ...
127
votes
13answers
221k views

How can I download an entire website?

How can I download all pages from a website? Any platform is fine.
127
votes
7answers
7k views

How do I securely store and manage 180 passwords?

I have about 180 passwords for different websites and web services. They are all stored in one single password protected Excel document. As the list gets longer I am more and more concerned about its ...
126
votes
5answers
248k views

How do I get the distinct values in a column in Excel?

If I have a column with values, and I want to find out what distinct values are in there (not how many - but the actual distinct values), how can I do that? In SQL Server I would do something like ...
124
votes
11answers
60k views

Create/rename a file/folder that begins with a dot in Windows?

Many programs needs folder names that starts with a dot, like .emacs.d, .gimp-2.2, .jedit etc. How do I create such a folder? When using the Windows Explorer in Windows 2000 (and other versions), I ...
123
votes
8answers
78k views

How do I turn off Modern UI and get the old Start Menu back in Windows 8?

I just bought a new Windows 8 laptop, but I want to get rid of the new "Modern UI" Start Screen, and get the old Start Menu back. How do I do this?
121
votes
9answers
151k views

How to rename user folder in Windows 8?

When I log in on a Windows 8 machine for the first time with my Microsoft Account (by providing an e-mail address), a new user folder is created: C:\Users\dzinx_000 In previous versions of Windows, ...
120
votes
10answers
46k views

Is it better to use a laptop on battery or on AC power?

When I'm at home, is it better to use the laptop plugged into AC power, or with just the battery, for the overall battery life?
119
votes
9answers
35k views

How do I reorder tmux windows?

In screen, I can just type C-a :number 0 to move a window to the top of the window list and push all the other windows down one. What's the equivalent command sequence for tmux? I looked at the man ...
119
votes
18answers
233k views

What utility can move my Windows boot partition over to another hard drive? [closed]

Can anyone recommend a cheap/free utility that can do this without very much effort? My preference is that it would be really easy. Boot into Windows Pick drive to move Pick target drive It copies ...
119
votes
4answers
72k views

How to pin either a Shortcut or a Batch file to the new Windows 7 Taskbar?

We are having trouble adding our batch scripts to the new Windows 7 taskar. Our batchfiles take some arguments and just execute other application based on those arguments . To keep it simple, we ...
117
votes
9answers
208k views

Mac OS X: Best Way to Make an ISO from a CD or DVD

Both command-line and screen-oriented pointers appreciated! update: I verified the disk utility, hdiutil, and dd methods. dd seems the fastest, 30 minutes on my macbook pro vs. 40 minutes for ...
117
votes
10answers
80k views

How do I exit a Modern UI app?

So I downloaded and installed Windows 8. I'm very impressed, except for one thing. I don't have touch, and I have this running in a virtual machine. How do I exit one of these full screen Modern UI ...
115
votes
12answers
95k views

How do I detach a process from Terminal, entirely?

I use Tilda (drop-down terminal) on Ubuntu as my "command central" - pretty much the way others might use GNOME Do, Quicksilver or Launchy. However, I'm struggling with how to completely detach a ...
115
votes
7answers
91k views

What does 'source' do?

$ whatis source source: nothing appropriate. $ man source No manual entry for source $ source bash: source: filename argument required source: usage: source filename [arguments] It exists, and it is ...
114
votes
6answers
14k views

How is PNG lossless given that it has a compression parameter?

PNG files are said to use lossless compression. However, whenever I am in an image editor, such as GIMP and try to save an image as a PNG file, it asks for the compression parameter, which ranges ...
113
votes
13answers
196k views

Is there a way to “auto login” in PuTTY with a password?

Is there a way to configure a password for a stored session in PuTTY? I know there is the capability to specify an "auto-login username" (under Connection/Data), but is there a way to do the same ...
112
votes
17answers
56k views

How to execute a command whenever a file changes?

I want a quick and simple way to execute a command whenever a file changes. I want something very simple, something I will leave running on a terminal and close it whenever I'm finished working with ...
112
votes
7answers
16k views

How to use the Internet while Heartbleed is being fixed?

There are many websites who are not currently vulnerable, but I have no idea if they were vulnerable a few days ago. For example: twitter.com: Not vulnerable right now, but the certificate is from ...
111
votes
15answers
106k views

“This file came from another computer…” - how can I unblock all the files in a folder without having to unblock them individually?

Windows XP SP2 and Windows Vista have this deal where zone information is preserved in downloaded files to NTFS partitions, such that it blocks certain files in certain applications until you ...
111
votes
7answers
5k views

Why can't I email myself at: MyEmail@74.125.235.55?

I opened cmd and typed ping gmail.com. It shows me: C:\Windows\system32>ping gmail.com Pinging gmail.com [74.125.235.55] with 32 bytes of data: Reply from 74.125.235.55: bytes=32 time=6ms TTL=56 ...
110
votes
3answers
153k views

Where can I download Windows 7 (legally from Microsoft)?

I just bought a serial for Windows 7 on-line from the Microsoft store (the most painful shopping experience EVER!). I selected that I wanted to download my version of Windows 7 after purchase. After ...
110
votes
15answers
152k views

Move an off-screen window back on-screen on Mac OS X

It seems that Mac OS X 10.6.1 Snow Leopard has a tendency to leave some windows off-screen at times, especially when I disconnect an external monitor from my MacBook. How can I move the window back ...
109
votes
7answers
112k views

How to check which apache modules are enabled/installed?

which is the most elegant way to check which apache modules are enabled?
109
votes
5answers
100k views

How to list files of a Debian package without install

This command can only list contents of installed packages, dpkg -L PACKAGENAME but how to list contents of a non-installed package, to preview/examine the package?
108
votes
8answers
8k views

What is the danger of inserting and browsing an untrusted USB drive?

Suppose someone wants me to copy some files to their USB stick. I'm running fully-patched Windows 7 x64 with AutoRun disabled (via Group Policy). I insert the USB drive, open it in Windows Explorer ...
108
votes
14answers
181k views

How to download files from command line in Windows, like Wget is doing?

How can I download something from the web directly without Internet Explorer or Firefox opening Acrobat Reader/Quicktime/MS Word/whatever? I'm using Windows, so a Windows version of Wget would ...

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