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Hexadecimal To Decimal in Shell Script
... to do it in the shell or with an external program:
With bash:
$ echo $((16#FF))
255
with bc:
$ echo "ibase=16; FF" | bc
255
with perl:
$ perl -le 'print hex("FF");'
255
with printf :
$ printf "%d\n" 0xFF
255
with python:
$ python -c 'print(int("FF", 16))'
255
with ruby:
$ ruby -e '...
ZeroMQ的学习和研究（PHP代码实例） - C/C++ - 清泛网 - 专注C/C++及内核技术
...息通信。几年的竞争下来，Apache 基金会旗下的符合 AMQP/1.0标准的 RabbitMQ 已经得到了广泛的认可，成为领先的 MQ 项目。
与 RabbitMQ 相比，ZMQ 并不像是一个传统意义上的消息队列服务器，事实上，它也根本不是一个服务器，它更...
Number of elements in a javascript object
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158
Although JS implementations might keep track of such a value internally, there's no standard w...
Can I make 'git diff' only the line numbers AND changed file names?
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10 Answers
10
Active
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Difference between HEAD and master
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162
master is a reference to the end of a branch. By convention (and by default) this is usually t...
How to do a batch insert in MySQL
I have 1-many number of records that need to be entered into a table. What is the best way to do this in a query? Should I just make a loop and insert one record per iteration? Or is there a better way?
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Importing from a relative path in Python
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144
EDIT Nov 2014 (3 years later):
Python 2.6 and 3.x supports proper relative imports, where you...
How to pause a YouTube player when hiding the iframe?
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14 Answers
14
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How do I download a binary file over HTTP?
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143
The simplest way is the platform-specific solution:
#!/usr/bin/env ruby
`wget http://somedom...
Proper way to wait for one function to finish before continuing?
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145
One way to deal with asynchronous work like this is to use a callback function, eg:
function ...