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I have just installed Vimperator 3.8.2 on Firefox 32 (running Fedora 20). The status bar at the bottom of the window does not display any information in Normal mode , even though when I do :set status? I get status=input,location,bookmark,history,tabcount,position, Nor do I get the little highlighted Error indicator, or mode indicators when I enter Insert or Caret. Everything else seems to work ju

There is apparently a vulnerability (CVE-2014-6271) in bash: Bash specially crafted environment variables code injection attack I am trying to figure out what is happening, but I'm not entirely sure I understand it. How can the echo be executed as it is in single quotes? $ env x='() { :;}; echo vulnerable' bash -c "echo this is a test" vulnerable this is a test EDIT 1: A patched system looks like

wget -qO- 'http://www.youtube.com/watch?v=Dd7dQh8u4Hc' | perl -l -0777 -ne 'print $1 if /<title.*?>\s*(.*?)\s*<\/title/si' You can pipe it to GNU recode if there are things like &lt; in it: wget -qO- 'http://www.youtube.com/watch?v=Dd7dQh8u4Hc' | perl -l -0777 -ne 'print $1 if /<title.*?>\s*(.*?)\s*<\/title/si' | recode html.. To remove the - youtube part: wget -qO- 'http://www.youtube.com/watch?v

Per the kernel documentation: This control is used to define how aggressive the kernel will swap memory pages. Higher values will increase aggressiveness, lower values decrease the amount of swap. However this is kind of vague. I'm trying to figure out exactly what the parameter ultimately controls. I know it adjusts how aggressively the kernel tries to swap out pages, but what decision making pro

When I execute a program without specifying the full path to the executable, and Bash must search the directories in $PATH to find the binary, it seems that Bash remembers the path in some sort of cache. For example, I installed a build of Subversion from source to /usr/local, then typed svnsync help at the Bash prompt. Bash located the binary /usr/local/bin/svnsync for "svnsync" and executed it.

We have CentOS 6.4 and the kipmi0 is showing as 99.8%cpu and 0.0% memory and load average is 1.00. What should we do to rectify on this?

I want to write logic in shell script which will retry it to run again after 15 sec upto 5 times based on "status code=FAIL" if it fails due to some issue.

I want to copy my c directory with all subdirectories excluding ./git subdirectory. I do it using rsync : echo "copy c and sh files " rsync -a --include='*.c' --include='*.sh' --include='*/' --exclude='*' ~/c/ ~/Dropbox/Public/c # remove .git directory = do not send it to dropbox. Thx to Tomasz Sowa rm -rf ~/Dropbox/Public/c/.git Can I do it better?

I have created zlib-compressed data in Python, like this: import zlib s = '...' z = zlib.compress(s) with open('/tmp/data', 'w') as f: f.write(z) (or one-liner in shell: echo -n '...' | python2 -c 'import sys,zlib; sys.stdout.write(zlib.compress(sys.stdin.read()))' > /tmp/data) Now, I want to uncompress the data in shell. Neither zcat nor uncompress work: $ cat /tmp/data | gzip -d - gzip: stdin: n

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I am setting up a yum repository, and need to debug some of the URLs in the yum.conf file. I need to know why is Scientific Linux trying to grab this URL, when I was expecting it to grab another URL: # yum install package http://192.168.1.100/pub/scientific/6.1/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 404" Trying other mirror. Error: Cannot retrie

Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Visit Stack Exchange

Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Visit Stack Exchange

x86 (32-bit a.k.a. i386–i686 and 64-bit a.k.a. amd64. In other words, your workstation, laptop or server.) FAQ: Do I have… 64-bit (x86_64/AMD64/Intel64)? lm Hardware virtualization (VMX/AMD-V)? vmx (Intel), svm (AMD) Accelerated AES (AES-NI)? aes TXT (TPM)? smx a hypervisor (announced as such)? hypervisor Most of the other features are only of interest to compiler or kernel authors. All the flags

I consistently have more than one terminal open. Anywhere from two to ten, doing various bits and bobs. Now let's say I restart and open up another set of terminals. Some remember certain things, some forget. I want a history that: Remembers everything from every terminal Is instantly accessible from every terminal (eg if I ls in one, switch to another already-running terminal and then press up, l

I'd like to be able to tail the output of a server log file that has messages like: INFO SEVERE etc, and if it's SEVERE, show the line in red; if it's INFO, in green. What kind of alias can I setup for a tail command that would help me do this?

I am always very hesitant to run kill -9, but I see other admins do it almost routinely. I figure there is probably a sensible middle ground, so: When and why should kill -9 be used? When and why not? What should be tried before doing it? What kind of debugging a "hung" process could cause further problems?

I've found that ssh-keygen ("ssh" package) produces different keys from puttygen ("putty" package). If I create public and private keys with ssh-keygen some SSH servers will not accept my keys. If I create keys with puttygen only one server does accept it. Why don't Linux repositories propose some common solution (package) for it? I've found another package ssh-3.2.9.1 which creates keys that work

I am using sshfs to mount a folder with some python projects over ssh to my ~/ directory. $ mkdir -p ~/mount/my-projects $ sshfs user@example.com:/home/user/my-projects ~/mount/my-projects I can perform most commands as could be expected: $ ls ~/mount/my-projects some-python-project But I if I try to do anything with sudo, it fails with permission denied: $ sudo ls ~/mount/my-projects ls: cannot a

There are some commands which filter or act on input, and then pass it along as output, I think usually to stdout - but some commands will just take the stdin and do whatever they do with it, and output nothing. I'm most familiar with OS X and so there are two that come to mind immediately are pbcopy and pbpaste- which are means of accessing the system clipboard. Anyhow, I know that if I want to t

I have two processes foo and bar, connected with a pipe: $ foo | bar bar always exits 0; I'm interested in the exit code of foo. Is there any way to get at it?

I want to disable requiretty so that I can sudo within scripts, but I'd rather only disable it for a single command rather than everything. Is that possible within the sudoers config?