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“did you run git update-server-info” error on a Github repository
I'm using the github Gui from their website to manage my repos, and I'm getting the following error:
20 Answers
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How many random elements before MD5 produces collisions?
... quintillion 374 quadrillion 607 trillion 431 billion 768 million 211 thousand 456.
However if you keep all the hashes then the probability is a bit higher thanks to birthday paradox. To have a 50% chance of any hash colliding with any other hash you need 264 hashes. This means that to get a collis...
Defining a variable with or without export
...l process. If you want a process to make use of this variable, use export, and run the process from that shell.
name=value
means the variable scope is restricted to the shell, and is not available to any other process. You would use this for (say) loop variables, temporary variables etc.
It's im...
Why does the C++ STL not provide any “tree” containers?
Why does the C++ STL not provide any "tree" containers, and what's the best thing to use instead?
14 Answers
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What is __main__.py?
...hat is the __main__.py file for, what sort of code should I put into it, and when should I have one?
5 Answers
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How does data binding work in AngularJS?
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AngularJS remembers the value and compares it to a previous value. This is basic dirty-checking. If there is a change in value, then it fires the change event.
The $apply() method, which is what you call when you are transitioning from a non-AngularJS wo...
Identify user in a Bash script called by sudo
...tiple checks - if $USER == 'root' then get $SUDO_USER.
Instead of the command whoami use who am i. This runs the who command filtered for the current session. It gives you more info than you need. So, do this to get just the user:
who am i | awk '{print $1}'
Alternatively (and simpler) you c...
How to overlay one div over another div
...gt;
</div>
I would suggest learning about position: relative and child elements with position: absolute.
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Git Gui: Perpetually getting “This repository currently has approximately 320 loose objects.”
...sible performance issue to you. This should be fixable by running this command from the command line:
cd path/to/your/git/repo
git gc --aggressive
From the output of git help gc:
Runs a number of housekeeping tasks within the current repository, such as compressing file revisions (to reduce disk s...
Remove DEFINER clause from MySQL Dumps
...them after the dump file is created.
Open the dump file in a text editor and replace all occurrences of DEFINER=root@localhost with an empty string ""
Edit the dump (or pipe the output) using perl:
perl -p -i.bak -e "s/DEFINER=\`\w.*\`@\`\d[0-3].*[0-3]\`//g" mydatabase.sql
Pipe the output throug...