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Fastest way to check if a file exist using standard C++/C++11/C?
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Search and replace in bash using regular expressions
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Use sed:
MYVAR=ho02123ware38384you443d34o3434ingtod38384day
echo "$MYVAR" | sed -e 's/[a-zA-Z]/X/g' -e 's/[0-9]/N/g'
# prints XXNNNNNXXXXNNNNNXXXNNNXNNXNNNNXXXXXXNNNNNXXX
Note that the subsequent -e's are processed in order. Also, the g fl...
JAVA线程池管理及分布式HADOOP调度框架搭建 - 人工智能(AI) - 清泛IT社区，...
...Thread类、实现java.lang.Runnable接口。
先看个例子，假设有100个数据需要分发并且计算。看下单线程的处理速度：package thread;
import java.util.Vector;
public class OneMain {
public static void main(String[] args) throws InterruptedExc...
How to retrieve the first word of the output of a command in bash?
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201
Awk is a good option if you have to deal with trailing whitespace because it'll take care of it...
Deleting an object in java?
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answered Apr 22 '11 at 16:30
MByDMByD
126k2525 gold badges249249 silver badges260260 bronze badges
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How do I change read/write mode for a file using Emacs?
... tripleee
124k1818 gold badges183183 silver badges240240 bronze badges
answered Oct 8 '08 at 0:10
Bob CrossBob Cross
21.6k1212 gol...
How to make space between LinearLayout children?
...there to be some space between the views. I have tried adding: setPadding(0, 1, 0, 1) to my CustomView constructor, but this doesn't seem to have any effect. Any advice?
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ls command: how can I get a recursive full-path listing, one line per file?
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390
If you really want to use ls, then format its output using awk:
ls -R /path | awk '
/:$/&&a...
Unicode character in PHP string
...xxx syntax the first thing that comes into my mind is:
$unicodeChar = '\u1000';
echo json_decode('"'.$unicodeChar.'"');
Another option would be to use mb_convert_encoding()
echo mb_convert_encoding('က', 'UTF-8', 'HTML-ENTITIES');
or make use of the direct mapping between UTF-16BE (b...
The remote end hung up unexpectedly while git cloning
...raising the postBuffer size by:
git config --global http.postBuffer 524288000
(some comments below report having to double the value):
git config --global http.postBuffer 1048576000
More information:
From the git config man page, http.postBuffer is about:
Maximum size in bytes of the buff...