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Output to the same line overwriting previous output?

I am writing an FTP downloader. Part of to the code is something like this: 8 Answers ...
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How to specify a multi-line shell variable?

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Remove all files except some from a directory

When using sudo rm -r , how can I delete all files, with the exception of the following: 19 Answers ...
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How to truncate milliseconds off of a .NET DateTime

I'm trying to compare a time stamp from an incoming request to a database stored value. SQL Server of course keeps some precision of milliseconds on the time, and when read into a .NET DateTime, it includes those milliseconds. The incoming request to the system, however, does not offer that precisio...
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Bash history without line numbers

The bash history command is very cool. I understand why it shows the line numbers, but is there a way I can invoke the history command and suppress the line numbers? ...
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When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s

What are the advantages of using NoSQL databases? I've read a lot about them lately, but I'm still unsure why I would want to implement one, and under what circumstances I would want to use one. ...
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Factors in R: more than an annoyance?

One of the basic data types in R is factors. In my experience factors are basically a pain and I never use them. I always convert to characters. I feel oddly like I'm missing something. ...
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Regex select all text between tags

What is the best way to select all the text between 2 tags - ex: the text between all the 'pre' tags on the page. 17 Answe...
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Matplotlib scatterplot; colour as a function of a third variable

I want to make a scatterplot (using matplotlib) where the points are shaded according to a third variable. I've got very close with this: ...
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Passing variable number of arguments around

Say I have a C function which takes a variable number of arguments: How can I call another function which expects a variable number of arguments from inside of it, passing all the arguments that got into the first function? ...