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write a shell script to ssh to a remote machine and execute commands
...x machines, and I need to write a shell script which will execute the same set of commands in each machine. (Including some sudo operations). How can this be done using shell scripting?
You can do this with ssh, for example:
#!/bin/bash
USERNAME=someUser
HOSTS="host1 host2 host3"
SCRIPT="pwd; ls"...
Best way to store JSON in an HTML attribute?
...ite it back in using jQuery in the same way that it was in PHP? — You're setting attributes of DOM nodes, not generating raw HTML, the browser will take care of it.
– Quentin
Sep 6 '11 at 16:03
...
Can I squash commits in Mercurial?
... can do this using mercurial without any extensions by Concatenating Changesets.
Alternately if you want to use an extension you could use:
The Collapse Extension
The Rebase Extension or
The Histedit Extension
share
...
How to start a Process as administrator mode in C# [duplicate]
...l times and usually requires going into the security tab and changing some settings, if I recall correctly. I think I eventually figured out a way. Elevated command prompt might also work, but be careful. Time sometimes brings answers. :-)
– Arlen Beiler
Oct 17...
Logical Operators, || or OR?
...)
{
echo "A and B are larger";
}
if (isset($d))
$d = 100;
echo $d;
unset($d);
?>
<?php
$var1 = 2;
switch($var1)
{
case 1: echo "var1 is 1";
break;
case ...
Generate random numbers with a given (numerical) distribution
...in Python's standard library, namely random.choices.
Example usage: let's set up a population and weights matching those in the OP's question:
>>> from random import choices
>>> population = [1, 2, 3, 4, 5, 6]
>>> weights = [0.1, 0.05, 0.05, 0.2, 0.4, 0.2]
Now choices(...
How to check if element in groovy array/hash/collection/list?
...quals() implementation to determine if those Ojbects are equal, and you've set it like this...
import groovy.transform.EqualsAndHashCode
@EqualsAndHashCode(includes = "settingNameId, value")
then the .contains(myObjectToCompareTo) will evaluate the data in myObjectToCompareTo with the data for ea...
What is the LD_PRELOAD trick?
...
If you set LD_PRELOAD to the path of a shared object, that file will be loaded before any other library (including the C runtime, libc.so). So to run ls with your special malloc() implementation, do this:
$ LD_PRELOAD=/path/to/my/m...
Is there a vim command to relocate a tab?
...l style tabs in GUI mode.
It also works in pure tty mode Vim, if you have set mouse=a and have a suitable terminal (xterm and most emulators of it, such as gnome-terminal, Terminal.app, iTerm2, and PuTTY/KiTTY, to name a view). Note that mouse clicks beyond column 222 also require set ttymouse=sgr;...
How to debug a referenced dll (having pdb)
...add a reference to the project by clicking add project reference. You can set the breakpoints in the existing project files. This is nice because the files aren't copied over.
– user420667
Sep 7 '11 at 18:45
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