All Issues
24,993 verified issues
How does Unix search for executable files?
When a file is executed, how does Unix search for it? If there are multiple executable files in PATH with the same name, which one is preferred? Is the current directory included in the search when a file is executed? Suppose there is a file with name in the current directory. Would that work if it is executed and is not part of the ?
How do I execute multiple commands when using find?
I'm trying to run multiple commands on things I have found, how can I achieve this? does not seem to work; it instead runs cmd2 after cmd1 has been executed on every file.
How do I get a special character on a netbook without a number pad?
I'd like to be able to use a keyboard shortcut to type special characters (characters that can't be found on my keyboard) such as the £ (pound) symbol, which I can get on a keyboard with a number pad by typing Alt+0163. Unfortunately, on my netbook, I don't have a number pad. How then do I get special characters, using the keyboard, without using charmap?
**How** harmful is a hard disk spin cycle?
It is conventional wisdom¹ that each time you spin a hard disk down and back up, you shave some time off its life expectancy. The topic has been discussed before: Is turning off hard disks harmful? What's the effect of standby (spindown) mode on modern hard drives? Common explanations for why spindowns and spinups are harmful are that they induce more stress on the mechanical parts than ordinary running, and that they cause heat variations that are harmful to the device mechanics. Is there any data showing quantitatively how bad a spin cycle is? That is, how much life expectancy does a spin cycle cost? Or, more practically, if I know that I'm not going to need a disk for X seconds, how large should X be to warrant spinning down? ¹ But conventional wisdom has been wrong before; for example, it is commonly held that hard disks should be kept as cool as possible, but the one published study on the topic shows that cooler drives actually fail more. This study is no help here since all the…
gem install rails doesn't do anything
I installed Ruby and RubyGems on Ubuntu 10.04. Ruby is version 1.8.7. Gems is version 1.3.7. When I try sudo gem install rails, nothing happens. It just hangs forever. What am I missing? Thanks!
Force Chrome to open new pages in new window, not tab? (when opened from a program)
Whenever I click a link from something like outlook or a program opens a web page (not when I click a link from within chrome). It opens up in Chrome since it is my default browser but if I already have a page open it will open in a new tab on that same window. I can't tell you how many times I forget about this and close the window out, accidentally losing the other tab too. Ofcourse, I can open a new chrome window and find it under recently closed tabs but I would really just prefer if they opened in their own window so I can prevent this.
echo text with new line in bash
I would like to append text to a file. So I wrote in bash However it doesn't leave a new line. So I can only do this once. How do I add a new line?
How to increase the visualized screen resolution on QEMU / KVM?
I have a 64 bit Ubuntu 9.10 workstation with two virtualized guest OSes using KVM/QEMU. Also both 64-bit. One is Fedora 12 the other is beta of Ubuntu 10.04. The problem is that I would like to use a larger size display that is configured by default. Both guest OSes have a maximum screen resolution of 1024x768. I would like to increase this to something like 1280x900 or 1440x900. The resolution of the host system is 1920x1080. This configuration appears to be a result of the installation detecting the resolution being reported by the virtual screen during installation. The only information I have found on the subject suggests modifying the xorg.conf file in the /etc/X11 directory. Neither guest system has this file. I tried creating one by hand in the Fedora system and managed to render it completely unusable. Not a big deal as this is recently installed and can be reinstalled easily. Is what I want to do possible? If so, how do I accomplish it?
How to extract image from PDF file
I currently use Foxit's PDF reader, and I recently downloaded an image from the Internet, but it is inside a PDF file. How do I extract this image? Operating system is Windows 7.
How can I mount a partition from dd-created image of a block device (e.g. HDD) under Linux?
I have an image of the entire disk created using dd. The disk structure follows: The image was created using: How would I, if it is possible, mount /dev/sda1 from the image so that I'm able to read the contents? It's not an option to clone the HDD again, I know how to do it if I had only cloned the single partition by itself. I hope it's still possible with the current image.
Can I detect what webserver a website is using?
Is there any program or command that I can use to detect what webserver a website is using? With webserver I mean in software i.e. IIS 6, Apache or nginx.
How to show the Connection Bar in a remote desktop session?
What is the keyboard shortcut to show the connection bar on an existing Remote Desktop session when the connection bar is hidden?
How to find a folder on Mac OS X 10.5?
I'm on Mac OS X 10.5 (Leopard). What's the best way to find a folder for which I'm not sure of the full name? For example, I know the folder name I want is like: "farm-animal-type" But the full name may be something like: "farm-animal-type-horse" On Windows, I would just use the find tool through Windows Explorer.
Command: sudo su -
I understand what does logs you into root with the root environment (as opposed to which logs you into root with your environment) And I understand what does you are root for one command But I am unsure what this does: Anyone care to clarify
How to go to remote directory in Cygwin?
I'm using the latest version of Cygwin to try to into a network drive on Windows XP Pro Service Pack 3. The path in Windows Explorer to this directory is something like: I tried mounting it to a drive letter ('X') in Explorer, which worked just fine, but then when I ran the command: It just froze there and hung. Any ideas how I can go into this directory and at least taking a listing of the files in there?
Select text in iTerm using keyboard
Is there a way to select text in iTerm OSX using keyboard?
How can I start a VM without getting a window?
VirtualBox has a window showing the display of the guest OS. I am connecting to VirtualBox with Remote Desktop, so I don't need VirtualBox to show that window in the host OS. Of course, I can minimize it, but is there a way to tell VirtualBox not to display that window?
Where is the tab/indent options in Notepad++ 5.5?
I recently upgraded to Notepad++ 5.5, and I can't find the tab indentation options. Does anybody know where they were moved? They used to be easily locatable in the Preferences menu, but apparently this has changed...
Ctrl+Backspace inserts a small box instead of erasing
When I press Ctrl+Backspace, sometimes a small square is inserted, instead of the entire word being erased. The problem only happens in some text boxes; in others the shortcut works like it should. Start menu search box: works Notepad: doesn’t work Notepad2: works Firefox: works I’m running Windows 7 x64.
What is the command to use to put your computer to sleep (not hibernate)?
I want to put my Windows PC (Windows 7) into a sleep state via command line (so I can bind to macro button on keyboard). The power button on the PC is setup to but the computer to sleep (but it's down on the floor and I'm too lazy to reach down) it exactly how I want it (sleeps using hybrid mode in case I loose power) The sleep command on the shutdown menu also works. most info I found says to use; But this puts the computer in hibernate mode. I do have hibernate disabled but using hybrid sleep. So, What is the command to use to put your computer to sleep (not hibernate)?