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Python argparse command line flags without arguments
...te:
Source: myparser.py
import argparse
parser = argparse.ArgumentParser(description="Flip a switch by setting a flag")
parser.add_argument('-w', action='store_true')
args = parser.parse_args()
print args.w
Usage:
python myparser.py -w
>> True
...
Read file line by line using ifstream in C++
...f("%s", line.c_str());
}
file.close();
}
[Fast] Use Boost's file_description_source
Another possibility is to use the Boost library, but the code gets a bit more verbose. The performance is quite similar to the code above (Loop with std::getline()).
#include <boost/iostreams/device/fi...
How can I debug a .BAT script?
....txt 2>&1
found at http://www.robvanderwoude.com/battech_debugging.php
IT WORKS!! don't forget the 2>&1...
WIZ
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Grunt watch error - Waiting…Fatal error: watch ENOSPC
...ll also persist across reboots. For more details: wiki.archlinux.org/index.php/Sysctl
– tnajdek
Sep 27 '13 at 9:20
...
Does using final for variables in Java improve garbage collection?
... well known corner case with generational garbage collectors. (For a brief description read the answer by benjismith for a deeper insight read the articles at the end).
The idea in generational GCs is that most of the time only young generations need to be considered. The root location is scanned f...
Import a file from a subdirectory?
...nguage shouldn't impose its way of loading files across the filesystem. In PHP we solved the problem by letting the userland code register multiple autoloading functions that are called when a namespace/class is missing. Then the community has produced the PSR-4 standard and Composer implements it, ...
What is the difference between 'E', 'T', and '?' for Java generics?
...
A more detailed and clear description is available in this article oracle.com/technetwork/articles/java/…
– fgul
Jan 13 '19 at 8:12
...
Search for all occurrences of a string in a mysql database [duplicate]
...
In phpMyAdmin a 'Search' feature is available:
Select particular database not table.
Click 'Search' tab
Enter the search term you want
Select the tables you want to search in
phpMyAdmin screen shot:
The 'Search' feature ...
Recursive search and replace in text files on Mac and Linux
...e easyform to form360, I´m running the following command: find . -name '*.php' -print0 | xargs -0 sed -i "" "s/easyform/form360/g"
– Andres Ramos
Jan 26 '17 at 21:23
...
What's the difference between git reset --mixed, --soft, and --hard?
...ut that is what the OP asked about!
It might be more helpful to couch the description in terms of what it is precisely that you regret at the time you give a git reset command. Let's say we have this:
A - B - C - D <- HEAD
Here are some possible regrets and what to do about them:
1. I regret...