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How to set an environment variable only for the duration of the script?
On Linux (Ubuntu 11.04) in bash, is it possible to temporarily set an environment variable that will only be different from the normal variable for the duration of the script? For example, in a shell script, making an app that saves to HOME portable by temporarily setting HOME to a folder in the pre...
Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
...omial (x-a1)...(x-ak) the coefficients will be exactly c1, ..., ck - see Viète's formulas. Since every polynomial factors uniquely (ring of polynomials is an Euclidean domain), this means ai are uniquely determined, up to permutation.
This ends a proof that remembering powers is enough to recover ...
Is there a difference between “==” and “is”?
...ption, but that said == None works too...
– Jean-François Fabre♦
Jul 24 '19 at 6:20
@Jean-FrançoisFabre Another ex...
Search of table names
...
Includes views too :-)
– François Breton
Nov 2 '17 at 15:46
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Why does modern Perl avoid UTF-8 by default?
...=>"is",level => 1)->eq("d", " ð") is false. Similarly, "ae" and "æ" are eq if you don’t use locales, or if you use the English one, but they are different in the Icelandic locale. Now what? It’s tough, I tell you. You can play with ucsort to test some of these things out.
Consider ...
Create empty file using python [duplicate]
...t's also unix-only. Won't work on windows
– Jean-François Fabre♦
Aug 13 '18 at 22:01
It is the only way if you abso...
Print list without brackets in a single row
...ted Oct 5 '18 at 14:51
Jean-François Fabre♦
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answered Jun 24 '12 at 14:01
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How to convert a Bitmap to Drawable in android?
...ted Jul 18 '16 at 12:19
Yasin Kaçmaz
5,44944 gold badges3232 silver badges5252 bronze badges
answered Mar 10 '10 at 11:17
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Where to place $PATH variable assertions in zsh?
I love zsh , but I am not sure where to place my $PATH and other variable assertions? I find that they are scattered between the files .zshrc .zprofile .bashrc .bash_profile , and sometimes doubled.
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How to filter rows in pandas by regex
...ted Jun 4 '18 at 12:10
Jean-François Corbett
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answered Feb 20 '18 at 11:35
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