All Issues
24,993 verified issues
Windows hosts file equivalent on Mac?
I am doing a project and uploading to a clients test server, however they only have IP address to access and suggested editing my hosts file. I'm on a Mac, where is the hosts file?
How does the Print Screen key work?
I want to know how the Print Screen key works. This is useful to take a snap of the current screen, but how does is this possible? Is there software that run and take a snap when print screen key is been pressed? If so what are they? Can anyone help me in the behind scenes of this process?
How to re-open closed tab?
I just upgraded to Firefox 4 and can't seem to find a feature I used quite often: If I accidentally close a tab, I could right-click and select an option to reopen the closed tab. Where is this feature in Firefox 4?
emacs -- C/C++ jump to beginning of containing block
While editing C or C++ files in emacs, I'd like to be able to go to the beginning of the containing block of code. I was expecting to find a c-beginning-of-block function, but alas, no such function exists (to my knowledge). For example, I might be editing the following ugly C code: I would be very…
When I SSH into OS X, I don't have my keychain. When I use Terminal, I do
Steps Open PuTTY on my Windows desktop. SSH into my MacBook Pro. cd to a github clone Expected Actual Notes The github key is listed in Keychain Access. I can show its passphrase in Keychain Access. I can use this passphrase successfully at the prompt in PuTTY. I get the expected result at a Termin…
Why is multi thread downloading faster than single thread?
There is one large file in my server. I find that multi thread download can get 20Mbs, but single thread can get 10Mbps, can anyone explain this?
TOP command memory usage
Under SuSE, (Mem: 31908592k total, 31421504k used,) how do i know which process or program using my memory?
Can't install Guest Additions using VirtualBox, Ubuntu guest OS, Win7 host OS
I'm new to VirtualBox and Linux. I've set up VirtualBox 4.0.4 on Windows 7. Successfully created a virtual machine running Ubuntu server 10.10 64 bit. I'm trying to set up Shared Folders. Prerequisite is Guest Additions. I've followed the Manual, as much as I understand it, and have Googled the hec…
How exactly does a proxy work?
If I want to connect to say, IP 100.100.100.100, Port 80, my computer will send a tcp packet with this adress into the wire. Now If I use a proxy server say, 200.200.200.200 Port 8080 (such kind of proxy that you can set up in internet explorer) how is this process changed? When I still want to con…
Search with "grep" for folder names
When using grep you can search for a specific regex, but only inside of a file. Is there any way, I can search for a folder name?
Dual Monitors Switching While Running Full-Screen Game?
I have a dual-monitor setup, and currently I can run a full screen game (Warcraft 3 and Starcraft 2 currently) and see still see anything I have open on my second monitor. I can't move my mouse from one monitor to the other, which is a good thing. However, I would like to know if it's possible to p…
Remove services on OS X
I'm looking to remove some services completely, or at least from the list in the Keyboard preference pane. I've tried: Service Scrubber. It only removes services from the menu — something you've been able to do from System Preferences since 10.6. Removing files in and . It's just that most third pa…
View bad blocks on mounted ext2/ext3/ext4 filesystem
I've ran -c on the (unmounted) partition in question a while ago. The process was unattended and results were not stored anywhere (except the bad block inode). Now I'd like to get bad block information to know if there are any problems with the hard drive. Unfortunately, partition is used in the pr…
How to block bluetooth signals?
We're developing software for bluetooth devices. We'd like to test the case when the device gets out of range, but don't want to carry the device to the other end of the office for each test. What is the easiest solution to block/shield bluetooth signals? Are there any containers that can be purcha…
Change the default search engine for Firefox's address bar
I love the ability to just type something into Firefox's address bar and do a Google search. But I was wondering if there was some way to customize what search engine Firefox used?
Netflix streaming: how much bandwidth does it use?
Title more or less says the question. I'm thinking about getting netflix, but want to make sure that our connect is fast enough to watch movies streamed. So: what is the bandwidth used by netflix, both for HD and standard movies?
Is it possible to view two files simultaneously in Geany?
I tend to be a simple text editor user, but when I want IDE-like features, I've been using Geany. One thing I find bothersome about it, though, is I can see only one file at a time. Sometimes I want to edit a .cpp file while looking at a .hpp file (or two) without flipping back and forth trying to …
Can you bring LCD monitors from the Nothern Hemisphere to the Southern?
In the old days, when CRTs ruled, I remember that monitors were manufactured specifically for the location in the world in which they were to be sold. Amongst other things, the Earths magnetic field influenced the display (or something like that). This meant for example, that buying a CRT monitor i…
Fullscreen Emacs in OSX
Is there any way of using Emacs in fullscreen mode in OSX. I'm currently using Emacs from http://emacsforosx.com/ Edit: This question is not relevant anymore since the release of Emacs version 24.4. Please see the accepted answer.
Bash: Replace all occurrences of a word in the last command
Almost by mistake, I figured out you could do something like: And that runs the same command with instead of . Now, how about if I have multiple occurrences of the target word? For example: It only replaces the first extension. How do I get it to replace both?