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How to specify a multi-line shell variable?
...
read does not export the variable (which is a good thing most of the time). Here's an alternative which can be exported in one command, can preserve or discard linefeeds, and allows mixing of quoting-styles as needed. Works for bash and zsh.
oneLine=$(printf %s \
a \
" b " \
$...
Hosting a Maven repository on github
...-------------------------------------------------------------
[INFO] Total time: 8.595s
[INFO] Finished at: Sun Dec 23 11:23:03 MST 2012
[INFO] Final Memory: 9M/81M
[INFO] ------------------------------------------------------------------------
Visit github.com in your browser, select the mvn-repo...
How to fix Python indentation
...e when |+ex_extra| feature was disabled at
compile time.
For example, if you simply type
:ret
all your tabs will be expanded into spaces.
You may want to
:se et " shorthand for :set expandtab
to make sure that any new lines will not use literal tabs.
If you're ...
How to do a regular expression replace in MySQL?
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For the next time I need it, here's syntax for changing a whole column: UPDATE table SET Name = REGEXP_REPLACE(Name, "-2$", "\\1") This removes -2 from abcxyz-2 from a whole column at once.
– Josiah
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Is there a way to iterate over a range of integers?
...w/Go/iter.go:20) PCDATA $0,$48
0060 (/home/ncw/Go/iter.go:20) CALL ,runtime.makeslice+0(SB)
0061 (/home/ncw/Go/iter.go:20) PCDATA $0,$-1
0062 (/home/ncw/Go/iter.go:20) MOVQ 24(SP),DX
0063 (/home/ncw/Go/iter.go:20) MOVQ 32(SP),CX
0064 (/home/ncw/Go/iter.go:20) MOVQ 40(SP),AX
0065 (/home...
Why doesn't Dijkstra's algorithm work for negative weight edges?
... edge weights are all positive numbers, because then we wouldn't waste our time considering paths that can't be shorter.
So I say that when running this algorithm if x is extracted from Q before y, then its not possible to find a path - which is shorter. Let me explain this with an example,
As y ...
Add custom messages in assert?
... @TUIlover, that’s not how C string literals work; they’re compile-time constants and their use in this context is trivially optimized away. There is no runtime cost.
– zneak
Aug 9 '19 at 8:46
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How to prevent Browser cache for php site
... https://css-tricks.com/can-we-prevent-css-caching/
The solution:
Append timestamp as the query part of the URI for the linked file.
(Can be used for css, js, images etc.)
For development:
<link rel="stylesheet" href="style.css?<?php echo date('Y-m-d_H:i:s'); ?>">
For production (wh...
What is the effect of extern “C” in C++?
...e use, or other such differences, plus you might need two separate C++ run-time support libraries (one for each compiler).
– Jonathan Leffler
Jun 25 '09 at 3:24
11
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How to multiply duration by integer?
...ncurrent goroutines, I added a line to a function to make it take a random time to return (up to one second)
5 Answers
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