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Git merge reports “Already up-to-date” though there is a difference

...ing to merge have already been merged to the branch you’re currently on. More specifically it means that the branch you’re trying to merge is a parent of your current branch. Congratulations, that’s the easiest merge you’ll ever do. :) Use gitk to take a look at your repository. The label f...
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How to concatenate string variables in Bash

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What does “connection reset by peer” mean?

...eer" is the TCP/IP equivalent of slamming the phone back on the hook. It's more polite than merely not replying, leaving one hanging. But it's not the FIN-ACK expected of the truly polite TCP/IP converseur. share ...
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How does SIGINT relate to the other termination signals such as SIGTERM, SIGQUIT and SIGKILL?

...ns and purposes, and the General Terminal Interface chapter includes a lot more detail on the terminal-related signals. share | improve this answer | follow | ...
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What is the http-header “X-XSS-Protection”?

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How to replace a character by a newline in Vim

...in substitutions \n inserts a null character whereas \r inserts a newline (more precisely, it’s treated as the input CR). Here’s a small, non-interactive example to illustrate this, using the Vim command line feature (in other words, you can copy and paste the following into a terminal to run it...
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Python truncate a long string

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JSON.stringify output to div in pretty print way

...rowser will not remove white spaces, new lines etc. code is for making it more semantic and denotes that the content inside is a code snippet. It has nothing to with formatting. It is advised to use like this, <pre><code> /* Your code snippet here. */ </code></pre> ...
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How to add test coverage to a private constructor?

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What is meant by immutable?

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