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How does the vim “write with sudo” trick work?
... file, but it isn't. If you opened and modified file1.txt, then ran :w file2.txt, it would be a "save as"; file1.txt wouldn't be modified, but the current buffer contents would be sent to file2.txt.
Instead of file2.txt, you can substitute a shell command to receive the buffer contents. For instanc...
Insert into … values ( SELECT … FROM … )
...QL engine of the day ( MySQL , Oracle , SQL Server , Informix , and DB2 ).
26 Answers
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How do I inspect the view hierarchy in iOS?
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edited Sep 1 '17 at 13:29
jameshfisher
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an...
Uber5岁了，一次性告诉你它的商业之道 - 资讯 - 清泛网 - 专注C/C++及内核技术
...挠。
人们喜欢将这种新模式的诞生描绘得偶然而轻松：2008年一个风雪交加的夜晚，Uber创始人特拉维斯·卡兰尼克和联合创始人加雷特·坎普在街头等出租车，很久都没有打到一辆车，于是，他们发誓要推出一款革命性的智能应...
How do I download a binary file over HTTP?
...write(resp.body)
end
end
puts "Done."
Edit: Changed. Thank You.
Edit2: The solution which saves part of a file while downloading:
# instead of http.get
f = open('sample.flv')
begin
http.request_get('/sample.flv') do |resp|
resp.read_body do |segment|
f.write(segment)
...
Can I escape html special chars in javascript?
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bjorndbjornd
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Array.sort() doesn't sort numbers correctly [duplicate]
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72
I've tried different numbers, and it always acts as if the 0s aren't there and sorts the number...
Find the files existing in one directory but not in the other [closed]
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diff -r dir1 dir2 | grep dir1 | awk '{print $4}' > difference1.txt
Explanation:
diff -r dir1 dir2 shows which files are only in dir1 and those only in dir2 and also the changes of the files present in both directories if any.
diff -r ...
Is there a better way to do optional function parameters in JavaScript? [duplicate]
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28 Answers
28
Active
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How do I get Flask to run on port 80?
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So it's throwing up that error message because you have apache2 running on port 80.
If this is for development, I would just leave it as it is on port 5000.
If it's for production either:
Not Recommended
Stop apache2 first;
Not recommended as it states in the documentation:
...