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top -c command in linux to filter processes listed based on processname
...ilter the processes by username by using the option -u but I am wondering if there is any easy way to filter the processes based on processname listed under COMMAND column of the top output.
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Get column index from column name in python pandas
...he list of columns to get index for:
[df.columns.get_loc(c) for c in cols if c in df]
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Different floating point result with optimization enabled - compiler bug?
...it extended precision internally, whereas double is normally 64-bit wide. Different optimization levels affect how often floating point values from CPU get saved into memory and thus rounded from 80-bit precision to 64-bit precision.
Use the -ffloat-store gcc option to get the same floating point r...
Using Kafka as a (CQRS) Eventstore. Good idea?
...they
have been consumed—for a configurable period of time. For example if
the retention is set for two days, then for the two days after a
message is published it is available for consumption, after which it
will be discarded to free up space. Kafka's performance is effectively
constant ...
How to prevent blank xmlns attributes in output from .NET's XmlDocument?
...(which puts it in no namespace) won't be added to it when it's serialised. If you need refreshing on how namespaces work, have a look at jclark.com/xml/xmlns.htm
– JeniT
Sep 26 '08 at 8:25
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How to delete a localStorage item when the browser window/tab is closed?
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If it works, you can technically use it. But considering removeItem is provided as a member function, it seems logical to use it rather than running into potentially undefined behavior using a separate operator.
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How to count the number of files in a directory using Python
...s.listdir() will be slightly more efficient than using glob.glob. To test if a filename is an ordinary file (and not a directory or other entity), use os.path.isfile():
import os, os.path
# simple version for working with CWD
print len([name for name in os.listdir('.') if os.path.isfile(name)])
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Move an item inside a list?
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Alternatively, you can use a slice notation:
l[index:index] = [item]
If you want to move an item that's already in the list to the specified position, you would have to delete it and insert it at the new position:
l.insert(newindex, l.pop(oldindex))
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Jquery selector input[type=text]')
...elector:
$('.sys input[type=text], .sys select').each(function() {...})
If you don't like the repetition:
$('.sys').find('input[type=text],select').each(function() {...})
Or more concisely, pass in the context argument:
$('input[type=text],select', '.sys').each(function() {...})
Note: Inter...
What happens to a detached thread when main() exits?
... joined again" is:
Yes, with the *_at_thread_exit family of functions (notify_all_at_thread_exit(), std::promise::set_value_at_thread_exit(), ...).
As noted in footnote [2] of the question, signalling a condition variable or a semaphore or an atomic counter is not sufficient to join a detached thr...