All Questions

Filter by
Sorted by
Tagged with
2164
votes
7answers
2.5m views

What is the cURL command-line syntax to do a POST request?

How can I make a POST request with the cURL command-line tool?
2028
votes
3answers
227k views

Why does Windows think that my wireless keyboard is a toaster?

I've inherited an old PC from my girlfriend's dad and when setting up the printer I got a bit of a surprise: Two questions spring to mind here: Why does Windows think my wireless keyboard is a ...
1546
votes
6answers
158k views

How do I make a machine “blank screen” for a period of time (as a penalty) if certain noise levels are reached?

My kids (4 and 5) yell a lot when playing games on the computer. I found an effective cure for this. When I hear loud noises, I ssh into the game computer and do: chvt 3; sleep 15; chvt 7 This ...
1356
votes
9answers
1.1m views

How can I sort the output of 'ls' by last modified date?

How can I sort the output of ls by last modified date?
1237
votes
12answers
715k views

How do I scroll in tmux?

I just started using tmux, and I really like it, but I need to be able to scroll within the buffers/panes/windows I have open. I don't care if it works with the mouse or not. When I search the tmux ...
969
votes
19answers
502k views

What are the Windows A: and B: drives used for?

In Windows you have a C-drive. Everything labeled beyond that is with the following letter. So your second drive is D, your DVD is E and if you put in a USB stick it becomes F and the following ...
897
votes
16answers
763k views

How to clear/flush the DNS cache in Google Chrome?

As you probably know Google Chrome has its own internal DNS cache. Is there a way to clear it without having to wait for the time out or close the browser?
808
votes
3answers
158k views

Transatlantic ping faster than sending a pixel to the screen?

John Carmack tweeted, I can send an IP packet to Europe faster than I can send a pixel to the screen. How f’d up is that? And if this weren’t John Carmack, I’d file it under “the interwebs being ...
751
votes
16answers
915k views

Getting curl to output HTTP status code?

I'm using curl at the command line on Linux to issue HTTP requests. The response bodies are printed to standard out, which is fine, but I can't see from the man page how to get curl to print the ...
681
votes
9answers
857k views

Find out which process is locking a file or folder in Windows

How can I find out which process is locking a file or folder in Windows? For instance, when trying to delete a folder, Windows reports this: The action can't be completed because the folder is ...
674
votes
5answers
94k views

Why does this PNG image display differently in Chrome & Firefox than in Safari and IE?

Check this image out: On Chrome and Firefox it will show as a pear. Now, try to save it and look at it saved on your desktop. Also, try viewing in Safari or Internet Explorer. It will display as ...
664
votes
18answers
78k views

How are pseudorandom and truly random numbers different and why does it matter?

I've never quite got this. Just say you write a small program in any language at all which rolls some dice (just using dice as an example). After 600,000 rolls, each number would have been rolled ...
652
votes
28answers
747k views

Is there a built-in checksum utility on Windows 7?

Is there a built-in checksum/hash utility on Windows 7?
598
votes
17answers
637k views

How to tell git which private key to use?

ssh has the -i option to tell which private key file to use when authenticating: -i identity_fileSelects a file from which the identity (private key) for RSA or DSA authentication is read.  The ...
573
votes
12answers
180k views

macOS keeps asking my ssh passphrase since I updated to Sierra

It used to remember the passphrase, but now it's asking it to me each time. I've read that I need to regenerate the public key with this command, which I did: ssh-keygen -y -f id_rsa > id_rsa.pub ...
571
votes
11answers
554k 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 ...
571
votes
10answers
175k views

From a quality perspective, what is better: turning volume up in the software, in the OS, or on the speakers?

If music isn't loud enough, how do I get the best quality (even if the difference is in fact so small it's negligible)? By making the music louder in my music player, game or other sound-producing ...
568
votes
5answers
735k views

How can I get the same SSID for multiple access points?

I need to upgrade my existing wireless infrastructure and this time I want 2 access points to cover my house, since I get blind spots no matter what with a single AP. I have physical cabling to my ...
562
votes
8answers
430k views

How to recursively chmod all directories except files?

How to chmod 755 all directories but no file (recursively) ? Inversely, how to chmod only files (recursively) but no directory ?
553
votes
13answers
3.2m views

Windows 7 SP1 Windows Update stuck checking for updates

I installed Windows 7 fresh and installed SP1. Now, when I try to check manually for Windows Updates it just hangs on the Checking for updates screen. I tried running the tools in How do I reset ...
538
votes
15answers
318k views

How to *disable* automatic reboots in Windows 10?

Windows 10 lets you 'schedule' a reboot for later. I want to disable it. Evidently Windows scheduled itself for a reboot last night when I wasn't looking and just closed everything I had been working ...
522
votes
4answers
231k views

How do you reload your .vimrc file without restarting vim?

Can you edit your .vimrc file and reload it without having to restart Vim?
490
votes
9answers
52k views

Did I just get hacked?

I am developing a consumer product, and it is supposed to be connected to the Internet, so as expected, it is connected to the Internet so that I can properly develop it. I went away for an hour or ...
488
votes
7answers
50k views

How does a computer restart itself?

How can a computer restart itself? After it's off, how does it tell itself to come back on again? What kind of software is it that can do this?
464
votes
15answers
78k views

Does e-mail address obfuscation actually work? [closed]

Most of the time when I see someone post their email address online, especially if it's a personal address, they use something like me [at] example [dot] com instead of the actual email address (...
457
votes
6answers
1.2m views

How can I display the contents of an environment variable from the command prompt in Windows 7?

In Windows 7, when I start the Command prompt, is there any command to display the contents of an environment variable (such as the JAVA_HOME or PATH variables)? I have tried with echo $PATH, echo ...
453
votes
13answers
242k 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 ...
446
votes
19answers
300k views

How can I remove malicious spyware, malware, adware, viruses, trojans or rootkits from my PC?

What should I do if my Windows computer seems to be infected with a virus or malware? What are the symptoms of an infection? What should I do after noticing an infection? What can I do to get rid of ...
443
votes
8answers
75k views

Why don't websites immediately display their text these days?

I've noticed that recently many websites are slow to display their text. Usually, the background, images and so on are going to be loaded, but no text. After some time the text starts appearing here ...
443
votes
14answers
587k views

Is there any 'sudo' command for Windows?

I always work on a non-administrator account on my Windows computer. Sometimes I need to install programs which requires administrator access. As I mostly use the Windows command prompt, is there a ...
442
votes
5answers
1.0m views

How to find a directory on linux?

I have a VPS with Suse Linux 10.3. I've logged in via SSH/putty and am trying to find where my web files are located. Since I'm uploading via FTP in a directory called httpdocs, I assume that this ...
441
votes
6answers
148k views

Difference between .bashrc and .bash_profile

What's the difference between .bashrc and .bash_profile and which one should I use?
429
votes
1answer
480k views

How to remove one or all auto-complete text entries in Chrome? [duplicate]

Possible Duplicate: Remove auto-complete field entries in Google Chrome Ok... so this is embarrassing. I typed in "boobs" on EncyclopediaDramatica's search because, well, it's a really funny ...
423
votes
4answers
131k 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 ...
421
votes
35answers
312k 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 ...
415
votes
7answers
512k 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 ...
411
votes
17answers
285k views

How can I make Chrome stop caching redirects?

I am working on a web application that is using redirects (for pretty URLs). I am trying to debug logic in the way the redirects are working. However Google Chrome keeps remembering the redirects and ...
407
votes
16answers
202k views

When reading a file with `less` or `more`, how can I get the content in colors?

When I read a file in Linux with the command less or more, how can I get the content in colors?
406
votes
9answers
554k views

Can I delete the folder C:\ProgramData\Package Cache\?

There is a new folder full of installers located at C:\ProgramData\Package Cache\. I believe this is from Visual Studio 2012 RC. Can I delete these gigabytes of data without consequences? Are they ...
397
votes
19answers
157k 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 ...
396
votes
14answers
549k views

How to disable the “Get Windows 10” icon shown in the notification area (tray)?

This icon showed up in my taskbar notification area today and I cannot seem to get rid of it: Clicking on it displays the following screen: So how do I disable or remove the "Get Windows 10" icon?
393
votes
5answers
350k 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
389
votes
10answers
395k views

View list of files in ZIP archive on Linux

How can I view the list of files in a ZIP archive without decompressing it?
386
votes
3answers
228k views

“directory junction” vs “directory symbolic link”?

In the context of NTFS: MKLINK [[/D] | [/H] | [/J]] Link Target /D Creates a directory symbolic link. Default is a file symbolic link. /H Creates a hard link instead of a ...
380
votes
8answers
751k views

How can I free up drive space from the Windows installer folder without killing Windows?

On my SSD machine, the C:\Windows\Installer folder is massive and takes up about 15% of my total disk space. Is there a way to clean up that folder without killing Windows 8.1/10? Tucking away the ...
378
votes
4answers
52k views

Why does pinging 192.168.072 (only 2 dots) return a response from 192.168.0.58?

I mistakenly missed the dot off of an IP address and typed in 192.168.072. To my surprise I connected to a machine at 192.168.0.58 If I ping 192.168.072 I get responses from 192.168.0.58. Why is ...
376
votes
23answers
389k views

How to delete directories with path/names too long for normal delete

Windows seems to have a length limit on file names when trying to delete, though it won't prevent those files from being created. Our build process creates a number of temporary files (many build off ...
376
votes
11answers
477k views

How to check which apache modules are enabled/installed?

Which is the most elegant way to check which apache modules are enabled?
376
votes
1answer
22k views

Ping faster than light

I just discovered very strange thing while testing my internet connection. My ping is smaller than it should be. For example ping time to Arizona State University is about 14ms. eryk@eryk-pc:~$ ping ...
372
votes
14answers
373k views

How to copy with cp to include hidden files and hidden directories and their contents?

How can I make cp -r copy absolutely all of the files and directories in a directory Requirements: Include hidden files and hidden directories. Be one single command with an flag to include the ...

15 30 50 per page