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Install MySQL on Ubuntu without a password prompt
...left blank for a blank root password.)
If your shell doesn't support here-strings (zsh, ksh93 and bash support them), use:
echo ... | sudo debconf-set-selections
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LINQ OrderBy versus ThenBy
...ut if you were for example passed a list of sort columns and directions as strings and bools, you could loop over them and use them in a switch like:
var query = db.People.AsNoTracking();
var sortHelper = EFSortHelper.Create(query);
foreach(var sort in sorts)
{
switch(sort.ColumnName)
{
cas...
.bashrc/.profile is not loaded on new tmux session (or window) — why?
... ~/.bashrc.
default-command shell-command
The default is an empty string, which instructs tmux to create a login shell using the value of the default-shell option.
Init files for Bash,
login mode:
/etc/profile
~/.bash_profile, ~/.bash_login, ~/.profile (only first one that exists)
in...
Java Persistence / JPA: @Column vs @Basic
... basic attribute is one where the attribute class is a simple type such as String, Number, Date or a primitive. A basic attribute's value can map directly to the column value in the database.
The types and conversions supported depend on the JPA implementation and database platform. Any basic attri...
How to redirect output with subprocess in Python?
... the stdout argument to subprocess.run:
# Use a list of args instead of a string
input_files = ['file1', 'file2', 'file3']
my_cmd = ['cat'] + input_files
with open('myfile', "w") as outfile:
subprocess.run(my_cmd, stdout=outfile)
As others have pointed out, the use of an external command like...
what is difference between success and .done() method of $.ajax
...g NaN values and serializing them as javascript NaN (i.e. as a symbol, not string 'NaN') which is actually not valid JSON -- so the parsing of the response as JSON fails and .fail() is executed, but the response status is 200. But it's still true that success ONLY gets called with an OK status code;...
Math.random() versus Random.nextInt(int)
... }
}
}
}
public static void main(String[] args) {
long start = System.currentTimeMillis();
usingRandomClass();
long end = System.currentTimeMillis();
System.out.println("usingRandomClass " + (end - start));
start = Sys...
Why invoke Thread.currentThread.interrupt() in a catch InterruptException block?
...:
public class InterruptedSleepingThreadMain {
public static void main(String[] args) throws InterruptedException {
Thread thread = new Thread(new InterruptedSleepingRunner());
thread.start();
// Giving 10 seconds to finish the job.
Thread.sleep(10000);
//...
How can I change property names when serializing with Json.net?
...ng Newtonsoft.Json;
// ...
[JsonProperty(PropertyName = "FooBar")]
public string Foo { get; set; }
Documentation: Serialization Attributes
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Adding a regression line on a ggplot
...n <- function (fit) {
`require(ggplot2)
ggplot(fit$model, aes_string(x = names(fit$model)[2], y = names(fit$model)[1])) +
geom_point() +
stat_smooth(method = "lm", col = "red") +
labs(title = paste("Adj R2 = ",signif(summary(fit)$adj.r.squared, 5),
...