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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, ${distro}
line 4 line
...
EOL
cat /etc/myconfig.conf
This construction is referred to as a Here Document and can be found in the B...
How can I add new keys to a dictionary?
...
3536
d = {'key': 'value'}
print(d)
# {'key': 'value'}
d['mynewkey'] = 'mynewvalue'
print(d)
# {'ke...
Disable ALL CAPS menu items in Visual Studio 2013
In Visual Studio 2013, Microsoft again presents the menu in UPPERCASE as the default.
6 Answers
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How to check if a string is a valid hex color representation?
... -> match end
i -> ignore case
If you need support for 3-character HEX codes, use the following:
/^#([0-9A-F]{3}){1,2}$/i.test('#ABC')
The only difference here is that
[0-9A-F]{6}
is replaced with
([0-9A-F]{3}){1,2}
This means that instead of matching exactly 6 charact...
Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...1点的，你可以洗洗去睡了。很多公司都有做到第2点和第3点，这些公司的服务端程序基本已经跑了很长时间了，已比较稳定，确实无需花太多时间去关注。如果一个新产品，在上线初期，我觉得就有必要做到第4点。
日志怎么看...
How do you get centered content using Twitter Bootstrap?
...
23 Answers
23
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vim deleting backward tricks
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answered Sep 3 '09 at 15:01
Lucas OmanLucas Oman
14.4k22 gold badges4242 silver badges4545 bronze badges
...
How can I set the default value for an HTML element?
...the option you want to be the default.
<option selected="selected">
3
</option>
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Removing first x characters from string?
...For example, if one had a string lipsum , how would they remove the first 3 characters and get a result of sum ?
5 Answer...
Access nested dictionary items via a list of keys?
...
236
Use reduce() to traverse the dictionary:
from functools import reduce # forward compatibility ...
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