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1500 questions
87
votes
2 answers

How to get back to insert mode in VIM when you accidentally hit C-x C-s

Given this vim session: % vim test-file.txt iHello there!C-x C-s How do I get back to insert/command mode again? (C-x C-s means Control-x Control-s, not sure if it's normal vi terminology for keyboard shortcuts) I know there's some way to get out…
gaqzi
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87
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4 answers

Why does "cd.." work in the Windows command line?

When typing cd.. without a space between cd and .. the Windows command prompt will happily switch to the parent folder. Is there an explanation for this behaviour? The command does not follow the standard format of commandarguments Also, why…
Jonas Köritz
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86
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4 answers

Windows 10, 'System' process taking massive amounts of RAM

Since I upgraded to Windows 10, my system has been consuming RAM excessively I've been reading a bit and determined it's likely a driver leaking memory. So I got myself the Windows Driver Kit and tracked memory usage with poolmon: However, I don't…
Nayncore
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86
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1 answer

How to untar an archive without the root folder, but keeping the full hierarchy inside it?

If I’ve got a .tar archive, and when I extract it, it gives me a single folder foo containing some more stuff, like this: foo/ something.txt another.txt bar/ something-else.txt Is there a way I can modify the .tar command to “skip” the…
callum
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86
votes
7 answers

Adjusting screen split pane sizes in tmux

I'd like to resize the panes so I can expand / compress the pane sizes (up / down / left / right etc) .. Any way to get this done?
Prashant
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86
votes
5 answers

svchost.exe high memory usage - wuauserv

I'm running Windows 7, and I've been experiencing high memory usage from one of my svchost.exe processes. Services under that particular process are BITS, EAPHost, IKEEXT, LanmanServer, MMCSS, ProfSVC, RasMan, Schedule, SENS, SharedAccess,…
Oliver
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86
votes
5 answers

How to comment out multiple lines at once in Notepad++?

In Eclipse it is possible to comment out multiple lines at once by selecting them and executing CTRL + /: // helloworld Is this possible in Notepad++ as well instead of typing /+/ in front of each individual line?
030
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86
votes
10 answers

Are computers with more RAM potentially faster if not all memory is usually in use?

Let's say I have a computer with 16 GB of memory. If my computer is usually only using about 4 GB and never reaches 8 GB, is it any faster than a computer with only 8 GB of (the same type of) memory? Would my computer run equally fast by removing…
Keavon
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86
votes
6 answers

Opened a JPG picture with notepad, pasted all the "text" to a new notepad file, changed to .JPG and it no longer opens. Why?

This phenomenon has been leaving me questions to ask. Here is the detailed experiment, my OS is Windows 7 x64 SP1: I changed a picture (JPG) file to TXT by simply changing its extension (or one could just choose to open the JPG with notepad, same…
Nguyễn Tuấn Danh
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86
votes
12 answers

How to save a mail into an .eml-file with Outlook?

Outlook Express and Thunderbird both support the .eml-file format. Somehow Outlook does not. Is there any way to save mails into into an .eml-file using Outlook (e.g. with the help of a plugin)?
Martin
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86
votes
17 answers

Convincingly "breaking" a system for a non technical user

For various reasons out of scope for Super User, I've been tasked with temporarily disabling one of my own systems. I have full admin control and own this system. It’s running Windows 7 SP1. I want to do this right—something believable, deniable and…
Journeyman Geek
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86
votes
8 answers

Compose key on Windows

On Linux, the Compose key is a great way to enter many symbols. E.g. em-dash — by pressing Compose then - - - ö by pressing Compose then : o Euro € by pressing Compose then C = (The Compose key function can be assigned to various keyboard keys,…
Craig McQueen
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86
votes
6 answers

How do I install ant on OS X Mavericks?

After upgrading to OS X 10.9 Mavericks, ant is no longer on my path. [126] 11:23:26 rkarl-mba-4:~/mobile-baselayer > ant zsh: permission denied: ant [126] 11:23:50 rkarl-mba-4:~/mobile-baselayer > which ant ant not found I tried installing through…
Robert Karl
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86
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3 answers

Does moving my router from 20MHz to 40 MHz increase my wireless speed?

I found out that my wireless access point supports dual band (LinkSys E3000), so I went to its settings and changed it from operating on 20MHz to 40MHz. Does this mean I get a faster WiFi connection now? Or have I misunderstood how this works?
Blake
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86
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9 answers

Why is my USB mouse disconnecting and reconnecting randomly and often?

My mouse will reconnect/disconnect (will even hear the sounds from Windows), and the light on the bottom of the mouse will turn off/turn on as it starts working again. It really sucks to be playing a game (and happens on desktop as well) for the…
Marc
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