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Save modifim>cat m>ions in place with awk
...nges to file, similar to sed where I would use -i option to save modifim>cat m>ions to a file.
8 Answers
...
How to create a MySQL hierarchical recursive query
...nitialisation
where find_in_set(parent_id, @pv)
and length(@pv := conm>cat m>(@pv, ',', id))
Here is a fiddle.
Here, the value specified in @pv := '19' should be set to the id of the parent you want to select all the descendants of.
This will work also if a parent has multiple children. However...
Is there a “goto” statement in bash?
...nlike most of the methods described above).
#!/bin/bash
echo "Run this"
m>cat m> >/dev/null <<GOTO_1
echo "Don't run this"
GOTO_1
echo "Also run this"
m>cat m> >/dev/null <<GOTO_2
echo "Don't run this either"
GOTO_2
echo "Yet more code I want to run"
To put your script back to no...
What is
...extends Comparable<? super T>>, it's when you have something like m>Cat m> extends Animal implements Comparable<Animal>.
Look at the signature of Collections.sort
public static <T extends Comparable<? super T>> void sort(List<T> list)
Therefore, with a List<m>Cat m>> li...
What does set -e mean in a bash script?
... pipeline still run, even with set -o errexit. For example: echo success | m>cat m> - <(echo piping); echo continues, where echo success represents a successful, but fallible command, will print success, piping, and continues, but false | m>cat m> - <(echo piping); echo continues, with false representin...
Most efficient method to groupby on an array of objects
...// example usage
const pets = [
{type:"Dog", name:"Spot"},
{type:"m>Cat m>", name:"Tiger"},
{type:"Dog", name:"Rover"},
{type:"m>Cat m>", name:"Leo"}
];
const grouped = groupBy(pets, pet => pet.type);
console.log(grouped.get("Dog")); // -> [{type:"Dog", name:"Spot"}, {type:"D...
jQuery set checkbox checked
... to the conversation.
Here is the longhand code for a fullcalendar modifim>cat m>ion that says if the retrieved value "allDay" is true, then check the checkbox with ID "even_allday_yn":
if (allDay)
{
$( "#even_allday_yn").prop('checked', true);
}
else
{
$( "#even_allday_yn").prop('checked', fa...
Convert dmesg timestamp to custom date format
...
15:54:05 up 371 days, 19:09, 4 users, load average: 3.41, 3.62, 3.57
# m>cat m> /proc/uptime
32123362.57 638648955.00
Accounting for the CPU uptime being in milliseconds, there's an offset of nearly 5 1/2 hours here. So I revised the script and converted it to native bash in the process:
dmesg_wit...
Best practices with STDIN in Ruby?
...e Ruby.
So, in Ruby, a simple no-bells implementation of the Unix command m>cat m> would be:
#!/usr/bin/env ruby
puts ARGF.read
ARGF is your friend when it comes to input; it is a virtual file that gets all input from named files or all from STDIN.
ARGF.each_with_index do |line, idx|
print ARGF....
Are static fields inherited?
....e.:
class A
{
public:
static int MaxHP;
};
int A::MaxHP = 23;
class m>Cat m>: A
{
public:
static const int MaxHP = 100;
};
works fine and with different values for A::MaxHP and m>Cat m>::MaxHP -- in this case the subclass is "not inheriting" the static from the base class, since, so to speak, it'...