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Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat
...shell process rather than of the cat process
– villapm>x m>
Feb 22 '17 at 21:24
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What's the purpose of git-mv?
From what I understand, Git doesn't really need to track file rename/move/copy operations, so what's the real purpose
of git mv ? The man page isn't specially descriptive...
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Creating dataframe from a dictionary where entries have different lengths
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In Python 3.m>x m>:
import pandas as pd
import numpy as np
d = dict( A = np.array([1,2]), B = np.array([1,2,3,4]) )
pd.DataFrame(dict([ (k,pd.Series(v)) for k,v in d.items() ]))
Out[7]:
A B
0 1 1
1 2 2
2 NaN 3
3 NaN 4
In...
Match multiline tem>x m>t using regular em>x m>pression
I am trying to match a multi line tem>x m>t using java. When I use the Pattern class with the Pattern.MULTILINE modifier, I am able to match, but I am not able to do so with (?m).
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Homebrew’s `git` not using completion
When using OSm>X m>’s git, after I modify a file I can simply do git commit <tab> , and that’ll auto complete the file’s name to the one that was modified. However, if I install a newer version of git from homebrew and I use it, that feature no longer works (meaning I press <tab> and...
How to manually em>x m>pand a special variable (em>x m>: ~ tilde) in bash
...urposes (but please don't use this)
If I'm not mistaken, "~" will not be em>x m>panded by a bash script in that manner because it is treated as a literal string "~". You can force em>x m>pansion via eval like this.
#!/bin/bash
homedir=~
eval homedir=$homedir
echo $homedir # prints home path
Alternatively...
Renaming a branch in GitHub
I just renamed my local branch using
15 Answers
15
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Overloading and overriding
...o override else you'll get a compilation error.
– Alem>x m> Stephens
May 21 '15 at 18:38
Hey, this might be old but I still...
Read a variable in bash with a default value
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You can use parameter em>x m>pansion, e.g.
read -p "Enter your name [Richard]: " name
name=${name:-Richard}
echo $name
Including the default value in the prompt between brackets is a fairly common convention
What does the :-Richard part do? From the ba...
Java how to replace 2 or more spaces with single space in string and delete leading and trailing spa
...opy of the string, with leading and trailing whitespace omitted.
regular-em>x m>pressions.info/Repetition
No trim() regem>x m>
It's also possible to do this with just one replaceAll, but this is much less readable than the trim() solution. Nonetheless, it's provided here just to show what regem>x m> can do:
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