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Configuring Git over SSH to login once
...log in. Once you log in, the idea is to run ssh-add once and only once, in order to give the agent your passphrase, to decode your key. The agent then just sits in memory with your key unlocked and loaded, ready to use every time you ssh somewhere.
All ssh-family commands1 will then consult the ag...
Heavy usage of Python at Google [closed]
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Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
...`.`innodb_table`' exists. Please DISCARD the tablespace before IMPORT
in order to fix this, what i did was first
create table innodb_table2(`id` int(10) unsigned NOT NULL);
Query OK, 0 rows affected (0.07 sec)
then in the /var/lib/mysql/database_name directory i did the following as root ackn...
Flatten nested dictionaries, compressing keys
...atten(...) can be recovered from the alleged duplicate by mapping a higher-order accumulator, one cannot recover the keys. (edit: Also it turns out that the alleged duplicate owner's question is completely different, in that it only deals with dictionaries exactly 2-level deep, though one of the ans...
Remove plot axis values
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When should you not use virtual destructors?
...number of some object, it would be worth avoiding all virtual functions in order to save the additional 32 bits per object.
In all other cases, you will save yourself debug misery to make the dtor virtual.
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Programmatically select text in a contenteditable HTML element?
...s.
There is a subtle difference when selecting a text range in a span. In order to be able to pass the text start and end index, you have to use a Text node, as described here:
If the startNode is a Node of type Text, Comment, or CDATASection,
then startOffset is the number of characters from...
How do you force Visual Studio to regenerate the .designer files for aspx/ascx files?
...).
The solution is surprisingly simple, but it's slightly cumbersome. In order to trigger the code generator, change something that would require the designer.aspx.cs to be generated. Changing content that doesn't affect code, such as a CSS style or adding text, won't trigger the code generator. Y...
Undo “git add ”?
...ers I staged with:
$ git add <dir>
Confirm directory unstaged
In order to confirm the removal of the directory and its contents from staging (ie "Changes to be committed"), run the below:
$ git status
or
$ git diff --staged --name-only
to confirm that none of the folders or files pr...
AES vs Blowfish for file encryption
...d AES. My next choices would probably be Serpent, MARS and Twofish in that order. Blowfish would come somewhere after those (though there are a couple of others that I'd probably recommend ahead of Blowfish).
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