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Execute command without keeping it in history [closed]
... with a space and it won't be included in the history.
Be aware that this does require the environment variable $HISTCONTROL to be set.
Check that the following command returns ignorespace or
ignoreboth
#> echo $HISTCONTROL
To add the environment variable if missing, the following line can b...
Understanding the basics of Git and GitHub [closed]
...ub is a more streamlined service as it was made especially for Git.
How does Git compare to a backup system such as Time Machine?
It's a different thing, Git lets you track changes and your development process. If you use Git with GitHub, it becomes effectively a backup. However usually you wou...
Is there a way to check if a file is in use?
...Write or Read lock on it, however, this solution will not work if the file doesn't have a Write or Read lock on it, i.e. it has been opened (for reading or writing) with FileShare.Read or FileShare.Write access.
ORIGINAL:
I've used this code for the past several years, and I haven't had any issues ...
How do I calculate percentiles with python/numpy?
... there is a pure-Python implementation of percentile function, in case one doesn't want to depend on scipy. The function is copied below:
## {{{ http://code.activestate.com/recipes/511478/ (r1)
import math
import functools
def percentile(N, percent, key=lambda x:x):
"""
Find the percentil...
Exclude all transitive dependencies of a single dependency
...dependency to your custom pom instead of the typical artifact. While that does not necessarily allow you exclude all transitive dependencies with a single <exclusion>, it does allow you only have to write your dependency once and all of your projects don't need to maintain unnecessary and lon...
Python: Get relative path from comparing two absolute paths
...o perform some normalization first (this is useful in situations where one does not know whether they always end with '/' or not, or if some of the paths are relative). Relevant functions include os.path.abspath() and os.path.normpath().
PPS: as Peter Briggs mentioned in the comments, the simple a...
C++ preprocessor __VA_ARGS__ number of arguments
...ported by any standard.
Here however you have a macro implementation that does the count:
#define PP_NARG(...) \
PP_NARG_(__VA_ARGS__,PP_RSEQ_N())
#define PP_NARG_(...) \
PP_ARG_N(__VA_ARGS__)
#define PP_ARG_N( \
_1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \
_11,_1...
When should I use Lazy?
...ar interpolation (or a bilinear interpolation) which is fairly trivial but does have some cost. (Are you going to suggest that I go and do my own experiment?)
– Ben
Jan 31 '14 at 16:59
...
Rails: How does the respond_to block work?
...byonrails.org/v4.1/classes/ActionController/Responder.html
The Responder does NOT contain a method for .html or .json, but we call these methods anyways! This part threw me for a loop.
Ruby has a feature called method_missing. If you call a method that doesn't exist (like json or html), Ruby calls...
Checking if a variable is defined?
...entation). It will return a String with the kind of the item, or nil if it doesn’t exist.
>> a = 1
=> 1
>> defined? a
=> "local-variable"
>> defined? b
=> nil
>> defined? nil
=> "nil"
>> defined? String
=> "constant"
>> defined? 1
=> "ex...