All Issues
24,993 verified issues
How to remove this symbol "^@" with vim?
I have some files that are corrupted with this symbol: ^@ It's not part of the string; it's not searchable. How do I substitute this symbol with nothing, or how do I delete this symbol? Here is an example line from one file:
Looping Through Subdirectories and Running a Command in Each
I have a set of repositories sorted into directories based on their VCS (Git, Mercurial, SVN). With Subversion I was able to run in the parent directory and it would loop through each directory and update each repository as expected. That's not the case for Git or Mercurial. I would like to come up with a bash script that I can run to do exactly that, loop through directories and either or in each. I just don't have much bash scripting experience.
Is there any way to set the priority of a process in Mac OS X?
I have a background process running at 100% CPU on Mac OS X. All other applications are very slow because of it. I'd like to set this process to take no more than 50% so that my applications can run better. How can I do this?
How to find out the real download URL on download sites that use redirects
Let's say I want to download something with but the website that has the files I need redirects to a site which automatically chooses a mirror for me (and there's no static file URL provided). Downloading from such sites works with Firefox, but how do I get real url (not only the link to the redirect page) so I could download these files with ?
How to stop animated gifs in Google Chrome?
I wish that the .gif files would only show the first frame and never do any animation. Also, I'd like this to work automatically (i.e. having to hit Esc as in Firefox is not enough). Is there a way of doing that in Chrome? I'm on a dev channel so I don't mind if it's an extension.
How to turn off the Firefox cache?
I'm using Firefox 3.5.2. For some reason, it has cached a page and won't update. For example, I added an statement to some JavaScript code which is loaded on the page, but Firefox doesn't see it. When I do a view source, I still see the old code. So I'm guessing this is a cache issue. How can I fix it, or can I make Firefox never cache anything from ?
Restart Ubuntu sound processes via command line
I tried to hibernate Ubuntu (which fails, but thats another issue) and resumed my system. After this, the sound doesn't get played. What command can/should I run to restart the ubuntu sound system.
Force logout a user
I When I logged into the machine as and typed to see which users are logged in, I found somebody else too logged in as root How can I force a root user at pts/3 to logout?
What colour is the dark green on 'old fashioned' green screen computer displays/VDUs?
I'd like to make my text editors display like the old skool white-on-green VDUs of yore that I can just about remember from my childhood. I have this idea they might be easier on my old eyes. I was wondering if there was standard dark green used on these and, if so, what the RGB or Hex values for it might be?
Is there a way to not select whitespace after a word when double-clicking?
In Windows, it seems the default behavior when double-clicking a word is to select the word, and any whitespace following the word (spaces or tabs). You can see this behavior across all programs, so I'm assuming this isn't a per-program setting. This may be common to other operating systems, but I don't know from personal experience. Is this something that can be configured in the OS anywhere or is it something I just have to live with?
Prevent Outlook from automatically deleting meeting emails
I'm using Outlook Web Access to read my email. When I receive a meeting notice and acknowledge it, Outlook adds it to my calendar then deletes the email. Is there a way to disable Outlook automatically deleting the meeting email? There doesn't seem to be any way to configure this in Options - Messaging and Options - Calendar. Note that I'm using Outlook Web Access and not the desktop client. From the copyright date this appears to be Outlook 2007. Follow-up: Based on edusysadmin's comment I logged-in using IE8, which exposed a setting not available in Firefox - "Move out-of-date meeting requests and responses to the Deleted Items folder". However unchecking this box doesn't seem to impact the auto-delete behavior. Follow-up 2: Keep in mind I am using Outlook Web Access via a web browser. I do not have the thick client Outlook installed.
How can I export a directory structure in Windows?
In Windows Explorer, there is a tree-view to see the overview of a directory structure. I want to share the structure to other people. How can I get a browsable tree-view of the directory structure of a partition and export that file-list, so that others can view it without access to the partition? To clarify, I am not interested in the files themselves. I just need a hierarchical listing of all files. Zipping them all up is not what I want.
Good block size for disk-cloning with diskdump (dd)
I use dd in its simplest form to clone a hard drive: However, I read in the manpage that dd knows a blocksize parameter. Is there an optimal value for the blocksize parameter that will speed up the cloning procedure?
Is there a way to list—and kill—running processes on Mac OS X in a Windows “Ctrl+Alt+Delete”-like way?
So, what do you do on a Mac when a process (as opposed to an application) is hogging CPU, swamping your machine, and you need to kill it? I know you can use or open “Applications > Utilities > Activity Monitor” and kill it from there. But what happens when the process is already using so much CPU that doing either of those tasks is impossible? On Windows, you can just do ctrl+alt+delete and the process list will reliably open. So no matter how much your computer is thrashing, you always have access to the list of processes. On Mac OS, there’s cmd+alt+escape, which reliably shows running applications. Fine when it’s an application causing the problem. But: what do you do if it’s a process?
Ubuntu Server VM: copy paste?
I've installed Ubuntu Server under Virtualbox just to get a nice little shell. I've also installed the VirtualBox "Guest Additions" and set "Shared Clipboard: Bidirectional". I still can't seem to get any copy-paste working. Am I missing something here? I've installed gpm which gives mouse support in server mode (no X), and allows copy-paste using the mouse, but still the VirtualBox integration doesn't work.
Converting the encoding of a text file (Mac OS X)
Possible Duplicate: How can I convert multiple files to UTF-8 encoding using *nix command line tools? Okay, now that I can detect the encoding, I know that my encoding is using instead of utf. How can I convert this?
Why is . not in the path by default?
On UNIX-like systems over the years (most relevantly to me, Linux), I've noticed that (current dir) is never in the by default. Why is this? I recall reading years ago that it was a security problem, but the article I read didn't explain what exactly the problem was. Is it because someone could leave a malicious version of or in a directory, and I'd end up running it without realizing it was there?
Remotely run script on Unix, get output locally?
I need to run a (Tcl, or whatever) script on a remote Unix machine, from a (local) Windows command shell, and I want the stdout/stderr of the script to show up in the Windows CLI. The exit code would also be useful. Is this possible using ssh (putty)? Or by any other means?
Equivalent of Unix find command on Windows
What is the equivalent of the Unix find command on Windows? I see that the on Windows is more like a . I am especially interested in the equivalent of
How do I split a .zip file into multiple segments?
I have all the command line utils installed, and need to split an existing (or) new file(s) into (50MB) segments in Terminal. i.e. Folder X = 900MB > Create self extracting archive > Split archive into 50MB Segments (i.e. ) According to the man page here are the commands: with I get: .....