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What is the iBeacon Bluetooth Profile
...00
minor: 0000
meaured power at 1 meter: 0xc5 = -59
I have this node.js script working on Linux with the sample AirLocate app example.
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Why '&&' and not '&'?
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Logical operator (|| and &&) vs. bitwise operator (| and &).
The most crucial difference between a logical operator and bitwise operator is that a logical operator takes two booleans and produces a boolean while a bitwise operator takes two integers...
Can scrapy be used to scrape dynamic content from websites that are using AJAX?
...ee that I've filtered request down to XHR - these are requests made by javascript code.
Tip: log is cleared every time you load a page, at the bottom of the picture, the black dot button will preserve log.
After analyzing requests and responses you can simulate these requests from your web-crawler...
Controlling a USB power supply (on/off) with Linux
...ll to perform a redirect, then output something into the redirected file descriptor.
– dig
May 12 '15 at 19:26
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How to replace ${} placeholders in a text file?
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Use /bin/sh. Create a small shell script that sets the variables, and then parse the template using the shell itself. Like so (edit to handle newlines correctly):
File template.txt:
the number is ${i}
the word is ${word}
File script.sh:
#!/bin/sh
#Set v...
rsync: how can I configure it to create target directory on server?
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Thanks, this works. In my case I was running a local bash script on a remote server and within that running the ssh mkdir command which was executing, but then killing the rest of the script before running the rsync command. This allows the rest of the script to run without issues.
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Difference between __str__ and __repr__?
...ng debuggers). I'd just like to add a link to this other Q&A about str vs unicode in Python 3 which could be relevant to the discussion for people who have made the switch.
– ThatAintWorking
Mar 23 '15 at 21:04
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The server principal is not able to access the database under the current security context in SQL Se
...ers_login" like you would after restoring a db). A stock (cursor driven) script to re-sync all accounts is attached:
USE <your database>
GO
-------- Reset SQL user account guids ---------------------
DECLARE @UserName nvarchar(255)
DECLARE orphanuser_cur cursor for
SELECT UserName ...
How to check if remote branch exists on a given remote repository?
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I needed to do a test in a bash script and so was only really interested in the exit code, so I did the following in a local clone: git ls-remote --exit-code . origin/branch-name &> /dev/null then used $? as the test operand
– D...
How to correctly iterate through getElementsByClassName
I am Javascript beginner.
6 Answers
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