All Issues
24,993 verified issues
Vim: How do you efficiently search for text?
Whenever you want to search for text in vim you would type / and then the string you are looking for. However, when the string is a long one, and you want to do this multiple times, is there a way to do it so that you don't have to type / more than once?
On Windows, how to determine route for IP destination?
How can I determine the IP route taken for a specific IP destination (without looking at "route print" and figuring it out manually)? In OS X there's and in Linux there's . Is there anything like that on Windows?
How can I disable my laptop's built-in keyboard in Windows 7?
I have a HP Compaq Presario C700 laptop with Windows 7 installed on it. My laptop's keyboard is not working properly; some keys never work and some keys will keep on pressing. I've formatted the OS but it didn't solve my problem. I bought an external USB keyboard and it works well. As some keys in …
Solutions for presenting PDF slides with presenter notes on second display
I made a presentation using the latex beamer class with notes. Now I have a problem displaying notes only on my display while presenting the slides to the audience using a projector. Beamer notes produce very wide pdf pages, each half page should be presented on its own display. A single page looks…
How can you tell a USB cable version?
Here is a question a student asked me in one of my A+ certification classes: How can you tell a USB cable version? I honestly don't know the answer and I can't find one either. USB cables are rated for versions 1, 1.1, 2, and now 3. I have seen their versions on the packaging, but never marked on t…
How to lock a file against deletion but still make it writeable?
I want to make a file locked against deletion but still be writeable. How do I do this? The file in question is a Truecrypt volume as a file on a NAS SMB Network share, so I don't want to accidentally delete it.
Improve quality of ffmpeg created jpgs
I'm using ffmpeg to take a mjpeg feed from an IP camera and convert it into a series of still jpeg images. Here's the command I'm using: Does anyone know a way to specify the level of jpg compression when using ffmpeg to create stills?
Why does my flash drive speed slow down when copying?
After a few minutes of copying, it just gets slower and slower. Why? e.g. It starts with 20 MByte/sec, and when it finishes with it, it's @10 MByte/s. Various files, big, small, etc. UPDATE: question is regarding various operating systems, so it's a "general question"
What is the difference between chkdsk /f and chkdsk /r?
(from ) It just sounds like the same thing to me. I never know which one to use - is there even a difference? Or is it maybe for backwards compatibility with previous versions of Windows where there was a difference?
Ways to check if user is active on remote machine before RDP'ing
We have a common Windows XP machine that's shared between multiple users. All of them use a common domain login to rdp into it. Now the problem is, we some times end up taking over other persons active session without either party being warned (no warning is issued as we use same login). Is there a…
What is Internet Relay Chat?
What exactly is "IRC"? I've read about it on Wikipedia, but I've never seen people using it (or if I have, I didn't recognize it). The only kind of "chat" I know about are those of AIM, Yahoo! Messenger, etc... i.e. What is IRC typically used for, and what are its advantages compared to other (more…
What's the difference between the find and findstr commands in Windows?
In Windows, what are the differences between the and commands? Both seem to search for text in files: find findstr
Adding more than three recipients to an email in Thunderbird
How do I add more than three (3) recipients to an email in Thunderbird? I can't imagine that 3 is the maximum number.
Rewrite git history to replace all CRLF to LF?
I'm going to transfer a private Git repository from win32 box to Ubuntu. Though I can do a final dos2unix commit, but I'd like to rewrite the whole history, so some Git GUI will display log/diff correctly. E.g., gitg will insert empty lines for each CR/LF.
Shell SIGKILL Keybinding
How can I setup a keybinding to send a to the current foreground job? I already know that Ctrl+C is and Ctrl+\ is . I would like a more severe option. Is there anything seriously unadvisable about this?
prevent connector routing when elements placed on top of them in MS Visio 2007
Is there any chance to prevent MS Visio (preferably 2010) connectors from routing when a text block is placed on top of it? I want to achieve the effect as if the text block is on the upper layer, above the shapes and connectors, but that the layers are completely separate (not affecting each other…
Square thumbnails with ImageMagick (convert)?
How to create square/cropped thumbnail using ImageMagick ? Cropping like below.
Windows command-line command to list hidden folders
Is there a command on the Windows command-line that can list hidden folders? I've tried but that doesn't work for me.
How can I change the time before the system locks?
When I step away from my Linux computer for a while, the system locks and I have to enter my password to unlock it. How can I change the time before the system locks? I've hunted through all the GUI menus and haven't found anything. There are some settings in but they all seem to apply to logging o…
How to find out which Firefox tab is using most CPU or memory?
There are times when the Firefox responds reluctantly. And it is not only when I have opened many tabs. But there are cases when I have opened as many as 20 tabs and Firefox is working fine and there are cases when I have opened just 5-6 tabs and Firefox behaves lazy. So, I guess it do not depend o…