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1500 questions
140
votes
24 answers

Why is my SSH login slow?

I'm seeing delays in SSH Logins. Specifically, there are 2 spots where I see a range from instantaneous to multi-second delays. Between issuing the ssh command and getting a login prompt and between entering the passphrase and having the shell…
Peter Lyons
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140
votes
24 answers

How can I mass rename files?

I've got a bunch of files named with a the pattern 99 - DescriptiveName.txt and I'd like to remove the number from the front so I just have DescriptiveName.txt. How can I do this? Can I do it from the command line or is there a utility that can do…
BIBD
  • 1,574
140
votes
16 answers

How can I intentionally break/corrupt a sector on an SD card?

I need to test the resilience of some read/write code for some embedded hardware. How might I sacrifice a few SD cards and break several known sectors for a controlled study? The only thing I can think of is to overwrite a single sector a few…
Gabe Krause
  • 1,317
140
votes
13 answers

Can you zip a file from the command prompt using ONLY Windows' built-in capability to zip files?

I have a batch file that outputs a text file. I thought it would be nice if I could zip it up too. This will be used in an uncontrolled environment, so I can't make assumptions about the presence of third-party software products such as 7-Zip, etc.…
Aaron Bush
  • 1,543
140
votes
3 answers

Where is the C drive in the WSL?

Whenever I try to login to bash using the Windows Subsystem for Linux, I try to cd into C:\Users\, but all I get is directory not found. Where is the C drive for the Windows Linux subsystem? Is it isolated?
Jeeter
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139
votes
13 answers

Map capslock to control in Windows 10

In Windows 8 I used to remap my capslock key to control using the registry script REGEDIT4 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout] "Scancode Map"=hex:00,00,00,00,00,00,00,00,02,00,00,00,1d,00,3a,00,00,00,00,00 After…
chtenb
  • 1,875
139
votes
4 answers

How do I get out my embedded Windows 8+ key from a Linux environment?

I have seen other SuperUser questions on this topic: How to find Windows 8 product key? | How to find Windows 8 OEM product key? However, all of the answers assume you have Windows 8 running. I've already done a clean install of Ubuntu 13.04 on my…
Riking
  • 3,333
139
votes
14 answers

What's the easiest way to delete Vim swapfiles I've already recovered from?

Sometimes Vim crashes and leaves me a swapfile. That's awesome. Then I open the file I was editing and Vim asks me if I want to recover. I do, thanks. When it's done, Vim tells me, You may want to delete the .swp file now. Why, yes, I do. How…
Peeja
  • 2,889
139
votes
11 answers

Disable Narrator shortcut key in Windows

I've install Windows 8 on a BootCamp macbook air The problem is that the command key located differently from the winkey in a normal keyboard, therefor, I keep clicking Winkey+Enter which starts the narrator (which is really annoying!) Is there a…
Dig
  • 1,453
139
votes
8 answers

Turn off scientific notation in Excel

I would like to prevent Excel behavior that any large number I enter is stored as a number, then abbreviated to scientific notation. Is it possible to tell Excel 2007 to stop doing this?
Pierre Gardin
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139
votes
14 answers

How to minimize all windows in macOS?

I am a recent refugee from Windows land (at least on one of my PCs). One thing I really miss in macOS is the ability to minimize all windows. I can't seem to find the shortcut that does it, or even a script.
AngryHacker
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139
votes
4 answers

Change environment variables as standard user

When clicking on "Advanced system settings", I need to login as the administrator and hence only edit the administrators environment variables (in addition to the machine wide ones). How do I edit the environment variables of a standard…
SealedSun
  • 2,159
139
votes
10 answers

What is this dm-0 device?

While poking around trying to figure out why a Linux -> Linux file transfer is running slower than I think it should, I stumbled across something I'm not familiar with. /dev/dm-0 seems to be my bottleneck, but I have no idea what it is. On my…
user4491
139
votes
5 answers

How do you shutdown or restart a Windows computer over a Remote Desktop connection?

When I connect to my Windows 7 desktop computer via Remote Desktop (MSTSC.exe), the options under the Start Menu are "Log Off" (the default), "Lock", and "Disconnect". How do I restart (or shutdown)?
gdunbar
  • 1,493
138
votes
11 answers

Copy-on-select, paste-on-middle-click on Mac OS X?

Is there a way to give OS X the usual X-windows behavior where selecting text in any application automatically copies it to the clipboard, and the middle mouse button automatically pastes it? +C, +V is a little annoying.
nibot
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