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Select random lines from a file
...s, new seed
time \
awk 'BEGIN {srand()}
!/^$/ { if (rand() <= .05 || FNR==1) print > "data-sample.txt"}' data.txt
# awk tsv004 3.76s user 1.46s system 91% cpu 5.716 total
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What’s the best way to reload / refresh an iframe?
I would like to reload an <iframe> using JavaScript. The best way I found until now was set the iframe’s src attribute to itself, but this isn’t very clean. Any ideas?
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How to insert an item at the beginning of an array in PHP?
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深入理解 x86/x64 的中断体系 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...责是负责安装 BIOS 代码进入系统内存。
jmp far f000:e05b
典型是这条指令就是 0xFFFFFFF0 处的 ROM BIOS 指令，执行后它将跳到 0x000FE05B 处，这条指令的作用很大：
更新 CS.base 使 processor 变成纯正的 real mode
跳转到低端内...
Add a prefix to all Flask routes
....config['DEBUG'] = True
# Load a dummy app at the root URL to give 404 errors.
# Serve app at APPLICATION_ROOT for localhost development.
application = DispatcherMiddleware(Flask('dummy_app'), {
app.config['APPLICATION_ROOT']: app,
})
run_simple('localhost', 5000, applica...
How to check whether a string is Base64 encoded or not
... it in my database. If the input is not Base64 encoded, I need to throw an error.
20 Answers
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What is a None value?
...t recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'F' is not defined
and that NameError means Python doesn't recognize the name F, because there is no such sticker. If Briggs were right and F = None resets F to its original state, then it should be there now, ...
How to generate .NET 4.0 classes from xsd?
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answered Dec 3 '13 at 15:05
VoteCoffeeVoteCoffee
2,9522525 silver badges3030 bronze badges
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Lombok is not generating getter and setter
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I also needed to clean the projects to remove compilation errors
– Aditya
Jan 13 '17 at 10:43
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How to change field name in Django REST Framework
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answered Apr 19 '17 at 10:05
vijayvijay
58655 silver badges99 bronze badges
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