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how to prevent “directory already exists error” in a makefile when using mkdir
...t all and with others, it is not safe for parallel execution. " gnu.org/s/hello/manual/make/Utilities-in-Makefiles.html
– greg.kindel
Dec 19 '11 at 17:28
8
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Is there a way to make R beep/play a sound at the end of a script?
...
cat('Hello world!\a')
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Execute PowerShell Script from C# with Commandline Arguments
... trouble passing parameters to the Commands.AddScript method.
C:\Foo1.PS1 Hello World Hunger
C:\Foo2.PS1 Hello World
scriptFile = "C:\Foo1.PS1"
parameters = "parm1 parm2 parm3" ... variable length of params
I Resolved this by passing null as the name and the param as value into a collection of ...
Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...测试一下，切到Shipper主机上，模拟日志产生：
echo "Hello World" >> /data/log/php/php_fetal.log
再切换到Indexer主机上，如果出现：10.140.46.134 B[1] Hello World，说明Logstash部署成功。
3.6. 日志着色脚本
在tail -f的时候，如果使用awk配合ec...
how to use python to execute a curl command
...xample:
curl -X POST -H 'Content-type: application/json' --data '{"text":"Hello, World!"}' https://hooks.slack.com/services/asdfasdfasdf
Becomes this in Python,
import requests
headers = {
'Content-type': 'application/json',
}
data = '{"text":"Hello, World!"}'
response = requests.post('ht...
What does O(log n) mean exactly?
...ories:
O(1) - Constant Time Examples:
Algorithm 1:
Algorithm 1 prints hello once and it doesn't depend on n, so it will always run in constant time, so it is O(1).
print "hello";
Algorithm 2:
Algorithm 2 prints hello 3 times, however it does not depend on an in
How to save a dictionary to a file?
...ctionary to a file using NumPy:
import numpy as np
# Save
dictionary = {'hello':'world'}
np.save('my_file.npy', dictionary)
# Load
read_dictionary = np.load('my_file.npy',allow_pickle='TRUE').item()
print(read_dictionary['hello']) # displays "world"
FYI: NPY file viewer
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How to write file if parent folder doesn't exist?
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var file = '/tmp/this/path/does/not/exist/file.txt'
fs.outputFile(file, 'hello!', function (err) {
console.log(err); // => null
fs.readFile(file, 'utf8', function (err, data) {
console.log(data); // => hello!
});
});
It also has promise support out of the box these day...
How to add an object to an array
...", "B"];
// "save it to a variable"
const newArray = appendObjTo(myArray, {hello: "world!"});
// returns: ["A", "B", {hello: "world!"}]. myArray did not change.
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What's the difference between window.location= and window.location.replace()?
...g one comma.
I wrote something similar to this in es6 and babel
var a = "hello world"
(async function(){
//do work
})()
This code fail and took forever to figure out.
For some reason what it saw was
var a = "hello world"(async function(){})()
hidden deep within the source code it was tellin...