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How to replace a whole line with sed?
...lish this:
sed -i "/aaa=/c\aaa=xxx" your_file_here
This will go through and find any lines that pass the aaa= test, which means that the line contains the letters aaa=. Then it replaces the entire line with aaa=xxx. You can add a ^ at the beginning of the test to make sure you only get the line...
VIM Replace word with contents of paste buffer?
I need to do a bunch of word replacements in a file and want to do it with a vi command, not an EX command such as :%s///g . I know that this is the typical way one replaces the word at the current cursor position: cw<text><esc> but is there a way to do this with the contents of the u...
How to create a video from images with FFmpeg?
... constant frame rate. See Create a video slideshow from images – FFmpeg, and this What is the (technical) difference between -r and the fps filter?. So using -r parameter sometimes couse skipping first image..
– khan
Nov 6 '14 at 17:55
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Where does Jenkins store configuration files for the jobs it runs?
...itself is kept on an EC2 machine - one that might need to be taken offline and brought back on an entirely different EC2 instance at any point. We have a bunch of Puppet manifests allowing us to easily reinstall the software on the EC2 instance, but custom configuration files, like the ones for the ...
Error starting jboss server
I've just finished re-installing my OS, and as always install and test standard tools which I use, and now I get this error like never before when I tried to start Jboss 5 from eclipse, its quite big exeption :
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Git keeps asking me for my ssh key passphrase
...ed keys as instructed in the github tutorial, registered them with github, and tried using ssh-agent explicitly — yet git continues to ask me for my passphrase every time I try to do a pull or a push.
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What is “rvalue reference for *this”?
...this never changes, see the bottom of this post. It's way easier to understand it with this wording though.
Next, the following code chooses the function to be called based on the ref-qualifier of the "implicit object parameter" of the function†:
// t.cpp
#include <iostream>
struct test{
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Why is vertical-align: middle not working on my span or div?
...ng happens. I've tried changing the display properties of both elements, and nothing seems to work.
16 Answers
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What is the use of the %n format specifier in C?
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@AndrewS: Because the function will modify the value of the variable.
– Jack
Jun 20 '14 at 0:31
3
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Biggest GWT Pitfalls? [closed]
...plement using GWT. Has anyone encountered any major pitfalls in using GWT (and GWT-EXT) that were unable to be overcome? How about from a performance perspective?
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