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How can I recall the argument of the previous bash command?
Is there a way in Bash to recall the argument of the previous command?
7 Answers
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Find the similarity metric between two strings
How do I get the probability of a string being similar to another string in Python?
10 Answers
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Bootstrap select dropdown list placeholder
...port placeholder="stuff" as other forms do. Is there a different way to obtain a placeholder in my dropdown?
19 Answers
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不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
不同品牌的防火墙组成高可靠性集群拓扑如下主机A ，B有两个可用路由要实现主备切换，当主防火墙出现问题的时候，可以自动切换到备防火墙上。第一台设备 ASG 425 支持OSPF...拓扑如下
主机A ，B有两个可用路由要实现主备切...
Changing column names of a data frame
I have a data frame called "newprice" (see below) and I want to change the column names in my program in R.
16 Answers
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How to find day of week in php in a specific timezone
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$dw = date( "w", $timestamp);
Where $dw will be 0 (for Sunday) through 6 (for Saturday) as you can see here:
http://www.php.net/manual/en/function.date.php
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Why is parenthesis in print voluntary in Python 2.7?
In Python 2.7 both the following will do the same
4 Answers
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What is a serialVersionUID and why should I use it?
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The docs for java.io.Serializable are probably about as good an explanation as you'll get:
The serialization runtime associates with each serializable class a version number, called a serialVersionUID, which is used during deserialization to verify th...
Track a new remote branch created on GitHub
I have already got a local master branch tracking the remote master branch of a github project. Now, a collaborator of mine has created a new branch in the same project, and I want to do the following accordingly:
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I need to pop up and trash away a “middle” commit in my master branch. How can I do it?
For example, in the following master branch, I need to trash just the commit af5c7bf16e6f04321f966b4231371b21475bc4da, which is the second due to previous rebase:
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