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How do you normalize a file path in Bash?
...../tmp/../tmp
# /tmp
realpath alternatives
If realpath is not supported by your shell, you can try
readlink -f /path/here/..
Also
readlink -m /path/there/../../
Works the same as
realpath -s /path/here/../../
in that the path doesn't need to exist to be normalized.
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Clean way to launch the web browser from shell script?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How to check if a String contains only ASCII?
...atic since according to docs "Instances of this class are not safe for use by multiple concurrent threads."
– pm_labs
Mar 27 '12 at 4:46
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Display help message with python argparse when script is called without any arguments
...rgs=parser.parse_args()
Note that parser.print_help() prints to stdout by default. As init_js suggests, use parser.print_help(sys.stderr) to print to stderr.
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Quick Sort Vs Merge Sort [duplicate]
...og2(n) of them. I must have got confused and put the extra factor of n in by mistake.
– j_random_hacker
Oct 30 '10 at 7:00
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Disable scrolling on ``
...t behavior of the mousewheel event on input-number elements like suggested by others (calling "blur()" would normally not be the preferred way to do it, because that wouldn't be, what the user wants).
BUT. I would avoid listening for the mousewheel event on all input-number elements all the time an...
Android 4.3 menu item showAsAction=“always” ignored
... available from the android: namespace. Instead this attribute is provided by the Support Library and you must define your own XML namespace and use that namespace as the attribute prefix. (A custom XML namespace should be based on your app name, but it can be any name you want and is only accessibl...
Changing the child element's CSS when the parent is hovered
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:hover is one of the "Dynamic pseudo-classes" defined by CSS2 (here's the spec). Here's a quick example: http://jsfiddle.net/5FLr4/. it works for me.
– Lee
Feb 21 '11 at 4:32
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Regular expression to match balanced parentheses
...+, R: perl=TRUE, Python: Regex package with (?V1) for Perl behaviour.
Ruby using subexpression calls.
With Ruby 2.0 \g<0> can be used to call full pattern.
\((?>[^)(]+|\g<0>)*\)
Demo at Rubular; Ruby 1.9 only supports capturing group recursion:
(\((?>[^)(]+|\g<1>)*\))...
Most efficient way to prepend a value to an array
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This should be voted up as of 2017. It's concise. By using spread, it gives back the new stream, which can be useful to chain on further modifications. It's also pure ( meaning that a and b are unaffected )
– Simon
Jul 30 '17 at 11:45
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