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An example of how to use getopts in bash
I want to call myscript file in this way:
7 Answers
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How to save a dictionary to a file?
...on has the pickle module just for this kind of thing.
These functions are all that you need for saving and loading almost any object:
def save_obj(obj, name ):
with open('obj/'+ name + '.pkl', 'wb') as f:
pickle.dump(obj, f, pickle.HIGHEST_PROTOCOL)
def load_obj(name ):
with open(...
Swapping two variable value without using third variable
...ation, when one is set to 0, both are set to 0.
When both *x and *y are 0, all other xor operations on *x and *y will equal 0 (as they are the same), which means that the function will set both *x and *y set to 0.
If they have the same values but not the same memory location, everything works as ex...
What causes a TCP/IP reset (RST) flag to be sent?
...every possible perversion has been visited on TCP since its inception, and all sorts of people might be inserting RSTs in an attempt to block traffic. (Some 'national firewalls' work like this, for example.)
share
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How do I prevent an Android device from going to sleep programmatically?
How do I prevent an Android device from going to sleep programmatically?
8 Answers
8
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How to get just one file from another branch
I am using git and working on master branch. This branch has a file called app.js .
10 Answers
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Inline functions vs Preprocessor macros
...functions are actual functions whose body is directly injected into their call site. They can only be used where a function call is appropriate.
Now, as far as using macros vs. inline functions in a function-like context, be advised that:
Macros are not type safe, and can be expanded regardless o...
Which version of PostgreSQL am I running?
I'm in a corporate environment (running Debian Linux) and didn't install it myself. I access the databases using Navicat or phpPgAdmin (if that helps). I also don't have shell access to the server running the database.
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Is it safe to use -1 to set all bits to true?
...s one:
unsigned long a = ~0u;
It won't necessarily store a pattern with all bits 1 into a. But it will first create a pattern with all bits 1 in an unsigned int, and then assign it to a. What happens when unsigned long has more bits is that not all of those are 1.
And consider this one, which wi...
Android Studio doesn't see device
...ou toggle what the project builds to. If you're importing a project it actually defaults to Emulator, not sure why. You can also select "Open Select Deployment Target Dialog" to list both connected as well as emulated devices.
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