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Check folder size in Bash
...with cut. Putting it all together:
CHECK=$(du -sb /data/sflow_log | cut -f1)
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Disable migrations when running unit tests in Django 1.7
...t avoids some of the pitfalls and is super simple: gist.github.com/NotSqrt/5f3c76cd15e40ef62d09
– djsutho
Dec 10 '14 at 0:03
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Command line CSV viewer? [closed]
...lts
'Enter' to view the full cell contents
Yank cell contents to clipboard
F1 or ? for keybindings
Can also use from python command line to visualize any tabular data (e.g.
list-of-lists)
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In VIM, how do I break one really long line into multiple lines?
...If you want it with one keystroke just set a mapping - I've used
vmap <f1> !fold --width=80<CR>
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What is a C++ delegate?
...e Fast C++ Delegate (on The Code Project).
struct DelegateList
{
int f1(double d) { }
int f2(double d) { }
};
typedef int (DelegateList::* DelegateType)(double d);
DelegateType d = &DelegateList::f1;
DelegateList list;
int a = (list.*d)(3.14);
Option 5: std::function
(or boost:...
Python multiprocessing pool.map for multiple arguments
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How to take multiple arguments:
def f1(args):
a, b, c = args[0] , args[1] , args[2]
return a+b+c
if __name__ == "__main__":
import multiprocessing
pool = multiprocessing.Pool(4)
result1 = pool.map(f1, [ [1,2,3] ])
print(result1)
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How to reorder data.table columns (without copying)
...I just want to move to columns to the front?
– Peter Pan
Apr 20 '16 at 15:41
5
setcolorder(df, c(...
How to assign a Git SHA1's to a file without Git?
...rter: (stat --printf="blob %s\0" "$1"; cat "$1") | sha1sum -b | cut -d" " -f1.
– sschuberth
Apr 19 '16 at 15:40
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Generating a SHA-256 hash from the Linux command line
I know the string "foobar" generates the SHA-256 hash c3ab8ff13720e8ad9047dd39466b3c8974e592c2fa383d4a3960714caef0c4f2 using
http://hash.online-convert.com/sha256-generator
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Useful code which uses reduce()? [closed]
... and this kind of composition may be more readable and maintainable than a f1(f2(f3(f4(x)))) kind of syntax.
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