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Efficiently test if a port is open on Linux?
...t, and stderr. 5 is sometimes used by Bash for child processes, so 3,4,6,7,8, and 9 should be safe.
As per the comment below, to test for listening on a local server in a script:
exec 6<>/dev/tcp/127.0.0.1/445 || echo "No one is listening!"
exec 6>&- # close output connection
exec 6&l...
Xcode - But… Where are our archives?
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edited Jul 9 '19 at 8:44
Cœur
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answe...
Get string character by index - Java
...hias Braun
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answered Jun 27 '12 at 15:39
Ricardo AltamiranoRicardo Altamirano
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Parsing JSON giving “unexpected token o” error [duplicate]
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How can I determine the type of an HTML element in JavaScript?
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298
nodeName is the attribute you are looking for. For example:
var elt = document.getElementById('...
JavaScript replace/regex
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sethseth
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Why CancellationToken is separate from CancellationTokenSource?
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edited Apr 2 at 0:38
Pang
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answered Ma...
AndroidRuntime error: Parcel: unable to marshal value
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280
Your HashMap itself is serializable but is the Bottle class serializable? If not, it will not s...
Chrome Extension Message passing: response not sent
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348
From the documentation for chrome.runtime.onMessage.addListener:
This function becomes inval...
Pandas aggregate count distinct
...lodwyn Pig ;)
– Ricky McMaster
Oct 18 '18 at 13:20
Hey do you know how to get non-duplicate count?
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