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How to use > in an xargs command?
... -c "grep ABC {} > {}.out"
This will break under a lot of conditions, including funky filenames and is impossible to quote right. Your {} must always be a single completely separate argument to the command to avoid code injection bugs. What you need to do, is this:
xargs -I{} sh -c 'grep ABC ...
Download large file in python with requests
...ased on the Roman's most upvoted comment above, here is my implementation,
Including "download as" and "retries" mechanism:
def download(url: str, file_path='', attempts=2):
"""Downloads a URL content into a file (with large file support by streaming)
:param url: URL to download
:param ...
How to add text inside the doughnut chart using Chart.js?
...
Worth mentioning that it doesn't work with v2. Use included jsfiddle code for easy of use
– Alwin Kesler
May 24 '16 at 21:15
1
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What is “lifting” in Haskell?
...ectly and not bother with liftFoo2, because the Control.Applicative module includes
liftA2 :: Applicative f => (a -> b -> c) -> f a -> f b -> f c
and likewise there are liftA and liftA3. But you don't actually use them very often because there is another operator
(<$>) = ...
Difference between framework and static library in xcode4, and how to call them
...ewhere in your path. If you have the XCode-project of the libaray, you can include the project and its target as a dependency so you get more debugging features and the .h-files in your path
– Martin Ullrich
Jun 5 '11 at 22:38
...
Which terminal command to get just IP address and nothing else?
...
This will give you all IPv4 interfaces, including the loopback 127.0.0.1:
ip -4 addr | grep -oP '(?<=inet\s)\d+(\.\d+){3}'
This will only show eth0:
ip -4 addr show eth0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}'
And this way you can get IPv6 addresses:
ip ...
Usage of EnsureSuccessStatusCode and handling of HttpRequestException it throws
...dle it any differently than a generic Exception . For example, it doesn't include the HttpStatusCode , which would have been handy.
...
How do you pass arguments to define_method?
...
The block that you pass to define_method can include some parameters. That's how your defined method accepts arguments. When you define a method you're really just nicknaming the block and keeping a reference to it in the class. The parameters come with the block. S...
How do I pass extra arguments to a Python decorator?
... print('pre action baz')
print(self.param_bar)
# including the call to the decorated function (if you want to do that)
result = func(*args, **kwargs)
print('post action beep')
return result
return my_logic
# usage example from h...
How to search by key=>value in a multidimensional array in PHP
...your objects that can sort and manage them (I always extend ArrayObject to include a search function at the very least).
$arrayObj->uasort("myComp");
Once they are sorted (uasort is O(n log n), which is as good as it gets over arbitrary data), binary search can do the operation in O(log n) ti...