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Extract elements of list at odd positions
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232
Solution
Yes, you can:
l = L[1::2]
And this is all. The result will contain the elements pl...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... 2.1. awk的语法有两种形式
2.2. 命令选项
3. 模式和操作
3.1. 模式
3.2. 操作
4. awk的环境变量
5. awk运算符
6. 记录和域
6.1. 记录
6.2. 域
6.3. 域分隔符
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How to write multiple line string using Bash with variables?
...command used (echo) is wrong.
Correct would be:
#!/bin/bash
kernel="2.6.39"
distro="xyz"
cat >/etc/myconfig.conf <<EOL
line 1, ${kernel}
line 2,
line 3, ${distro}
line 4 line
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EOL
cat /etc/myconfig.conf
This construction is referred to as a Here Document and can be found in the B...
How to overcome TypeError: unhashable type: 'list'
...else:
d[key] = [value]
print d
# {'AAA': ['111', '112'], 'AAC': ['123'], 'AAB': ['111']}
Note that if you are using Python 3.x, you'll have to make a minor adjustment to get it work properly. If you open the file with rb, you'll need to use line = line.split(b'x') (which makes sure you are ...
Pairs from single list
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answered Jan 7 '11 at 17:35
Jochen RitzelJochen Ritzel
89.3k2525 gold badges181181 silver badges180180 bronze badges
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range over interface{} which stores a slice
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3 Answers
3
Active
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Homebrew install specific version of formula?
...a, it puts it in a versioned directory like /usr/local/Cellar/postgresql/9.3.1. Only symbolic links to this folder are then installed globally. In principle, this makes it pretty easy to switch between two installed versions. (*)
If you have been using homebrew for longer and never removed older ve...
In an array of objects, fastest way to find the index of an object whose attributes match a search
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394
Maybe you would like to use higher-order functions such as "map".
Assuming you want search by ...
Test if lists share any items in python
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322
Short answer: use not set(a).isdisjoint(b), it's generally the fastest.
There are four common...
Five equal columns in twitter bootstrap
... 5 column grid is being used here:
http://web.archive.org/web/20120416024539/http://domain7.com/mobile/tools/bootstrap/responsive
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