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Catching error codes in a shell pipe

I currently have a script that does something like 4 Answers 4 ...
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How to open, read, and write from serial port in C?

I am a little bit confused about reading and writing to a serial port. I have a USB device in Linux that uses the FTDI USB serial device converter driver. When I plug it in, it creates: /dev/ttyUSB1. ...
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How do I round to the nearest 0.5?

I have to display ratings and for that i need increments as follows: 9 Answers 9 ...
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What does multicore assembly language look like?

Once upon a time, to write x86 assembler, for example, you would have instructions stating "load the EDX register with the value 5", "increment the EDX" register, etc. ...
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Fastest way to remove first char in a String

Say we have the following string 4 Answers 4 ...
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How to configure PostgreSQL to accept all incoming connections

I've got a PostgreSQL data base that I'd like to configure to accept all incoming connections regardless of the source IP address. How can this be configured in the pg_hba.conf file? I'm using postgreSQL version 8.4. ...
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How to normalize an array in NumPy?

I would like to have the norm of one NumPy array. More specifically, I am looking for an equivalent version of this function ...
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How is “=default” different from “{}” for default constructor and destructor?

I originally posted this as a question only about destructors, but now I'm adding consideration of the default constructor. Here's the original question: ...
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How to change line width in ggplot?

Datalink: the data used 5 Answers 5 ...
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Quickest way to convert a base 10 number to any base in .NET?

I have and old(ish) C# method I wrote that takes a number and converts it to any base: 12 Answers ...