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psql: could not connect to server: No such file or directory (Mac OS X)
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WARNING: If you delete postmaster.pid without making sure there are really no postgres processes running you, could permanently corrupt your database. (PostgreSQL should delete it automatically if the postmaster has exited.).
SOLUTION: This fixed the issue--I deleted this file, and then everyt...
How do I move forward and backward between commits in git?
...of the commit or a tag.
Explanation:
the command inside $() means: get all the commits between current HEAD and towards commit (excluding HEAD), and sort them in the precedence order (like in git log by default -- instead of the chronological order which is weirdly the default for rev-list), and...
Getting the parent of a directory in Bash
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the quotes inside are important or you're gonna loose all your data
– catamphetamine
Nov 7 '14 at 16:04
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How to configure port for a Spring Boot application
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Actually command line option is --server.port=8090 not -Dserver.port=8090. docs.spring.io/spring-boot/docs/current/reference/html/…
– Opster ES Ninja - Alper
Aug 19 '15 at 6:39
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What's the difference between .bashrc, .bash_profile, and .environment?
...or login at the text console of a local unix machine). these are the ones called, say, .login or .profile or .zlogin (depending on which shell you're using).
Then you have config files that are read by "interactive" shells (as in, ones connected to a terminal (or pseudo-terminal in the case of, say...
Test if string is a guid without throwing exceptions?
...if class identifier was obtained successfully
/// Negative if the call failed
/// </returns>
[DllImport("ole32.dll", CharSet = CharSet.Unicode, ExactSpelling = true, PreserveSig = true)]
public static extern int CLSIDFromString(string sz, out Guid clsid);
}
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How can I refresh a page with jQuery?
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This should work on all browsers even without jQuery:
location.reload();
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How to apply multiple styles in WPF
...r, check out the following xaml below to get around that restriction. Basically, it means you need to give the Style a key and reference it with that key.
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<Pa...
GIT commit as different user without email / or only email
...name
The separation of the characters probably indicates that spaces are allowed, it could also be resembling initials.
The username has to be followed by 1 space, extra spaces will be truncated
<author@example.com> = optional email address
Must always be between < > signs.
The ema...
Aborting a shell script if any command returns a non-zero value?
...vokes a number of commands.
I would like to have the shell script automatically exit with a return value of 1 if any of the commands return a non-zero value.
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