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CentOS系统下如何挂载第2块磁盘 - 更多技术 - 清泛网 - 专注C/C++及内核技术
CentOS系统下如何挂载第2块磁盘1、查看新硬盘 # fdisk -l新添加的硬盘的编号为 dev sdb 2、硬盘分区 1）进入fdisk模式 # fdisk dev sdb2）输入n进行分区...1、查看新硬盘
# fdisk -l
新添加的硬盘的编号为/dev/sdb
2、硬盘分区
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Why is it said that “HTTP is a stateless protocol”?
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edited Nov 2 '12 at 17:37
answered Nov 2 '12 at 17:24
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clang error: unknown argument: '-mno-fused-madd' (python package installation failure)
I get the following error when attempting to install psycopg2 via pip on Mavericks 10.9:
14 Answers
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Converting camel case to underscore case in ruby
... underscore
self.gsub(/::/, '/').
gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
gsub(/([a-z\d])([A-Z])/,'\1_\2').
tr("-", "_").
downcase
end
end
Then you can do fun stuff:
"CamelCase".underscore
=> "camel_case"
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How to convert latitude or longitude to meters?
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Here is a javascript function:
function measure(lat1, lon1, lat2, lon2){ // generally used geo measurement function
var R = 6378.137; // Radius of earth in KM
var dLat = lat2 * Math.PI / 180 - lat1 * Math.PI / 180;
var dLon = lon2 * Math.PI / 180 - lon1 * Math.PI / 180;
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Script parameters in Bash
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125
The arguments that you provide to a bashscript will appear in the variables $1 and $2 and $3 wh...
What is the fastest method for selecting descendant elements in jQuery?
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Method 1 and method 2 are identical with the only difference is that method 1 needs to parse the scope passed and translate it to a call to $parent.find(".child").show();.
Method 4 and Method 5 both need to parse the selector and then just cal...
How to use a variable inside a regular expression?
...double curly braces. Let's say you want to match TEXTO followed by exactly 2 digits:
if re.search(rf"\b(?=\w){re.escape(TEXTO)}\d{{2}}\b(?!\w)", subject, re.IGNORECASE):
print("match")
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Convert to binary and keep leading zeros in Python
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225
Use the format() function:
>>> format(14, '#010b')
'0b00001110'
The format() funct...
Convert camelCaseText to Sentence Case Text
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20 Answers
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