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error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
...rted off with me not being able to log in as root any more on my mysql install. I was attempting to run mysql without passwords turned on... but whenever I ran the command
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How do you track record relations in NoSQL?
...pivotal tables (to add keys marking a relation between two objects) I am really stumped as to how you would be able to retrieve data in a way that would be useful for normal web pages.
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How can I find all matches to a regular expression in Python?
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Use re.findall or re.finditer instead.
re.findall(pattern, string) returns a list of matching strings.
re.finditer(pattern, string) returns an iterator over MatchObject objects.
Example:
re.findall( r'all (.*?) are', 'all cats are s...
Which iomanip manipulators are 'sticky'?
... the comments below:
By Martin:
@Chareles: Then by this requirement all manipulators are sticky. Except setw which seems to be reset after use.
By Charles:
Exactly! and the only reason that setw appears to behave differently is because there are requirements on formatted output operat...
Emacs: print key binding for a command or list all key bindings
...a command.
You are correct, C-h b (or M-x describe-bindings) will show you all bindings. C-h m (M-x describe-mode) is also handy to list bindings by mode.
You might also try C-h k (M-x describe-key) to show what command is bound to a key. For instance, on my machine save-buffers-kill-emacs isn't b...
How to make a node.js application run permanently?
On a Debian server, I installed Node.js. I understand how to launch an app from putty with this command line:
19 Answers
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Deleting all records in a database table
How do I delete all records in one of my database tables in a Ruby on Rails app?
7 Answers
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Script to kill all connections to a database (More than RESTRICTED_USER ROLLBACK)
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Such a nice answer for aggregating kill statements all together. I would use a cursor to kill each process, which of course is not efficient at all. The technique used in this answer is brilliant.
– Saeed Neamati
Mar 2 '14 at 6:27
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Remove a git commit which has not been pushed
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Actually, when you use git reset, you should refer to the commit that you are resetting to; so you would want the db0c078 commit, probably.
An easier version would be git reset --hard HEAD^, to reset to the previous commit befor...
Salting Your Password: Best Practices?
...d you store. (This is quite a common misunderstanding.)
Use a cryptographically secure random number generator.
Choose a long enough salt. Think about the birthday problem.
There's an excellent answer by Dave Sherohman to another question why you should use randomly generated salts instead of a us...