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How to get the source directory of a Bash script from within the script itself?

... #!/bin/bash DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )" is a useful one-liner which will give you the full directory name of the script no matter where it is being called from. It will work as long as the last component of the p...
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how to use sed, awk, or gawk to print only what is matched?

... tried * instead and I added p tag for printing match: sed -n 's/^.*abc\([0-9]*\)xyz.*$/\1/p' example.txt For matching at least one numeric character without +, I would use: sed -n 's/^.*abc\([0-9][0-9]*\)xyz.*$/\1/p' example.txt ...
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How to remove gaps between subplots in matplotlib?

... 103 You can use gridspec to control the spacing between axes. There's more information here. impo...
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How to truncate the time on a DateTime object in Python?

... 390 I think this is what you're looking for... >>> import datetime >>> dt = datet...
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Pandas groupby: How to get a union of strings

..._csv(StringIO(data),sep='\s+') In [5]: df Out[5]: A B C 0 1 0.749065 This 1 2 0.301084 is 2 3 0.463468 a 3 4 0.643961 random 4 1 0.866521 string 5 2 0.120737 ! In [6]: df.dtypes Out[6]: A int64 B float64 C object dtype: object When...
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Why am I getting a “401 Unauthorized” error in Maven?

Why am I getting a "401 Unauthorized" error in Maven? 21 Answers 21 ...
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Set time part of DateTime in ruby

...e a datetime object eg DateTime.now . I want to set hours and minutes to 0 (midnight). How can I do that? 4 Answers ...
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Can I automatically increment the file build version when using Visual Studio?

...ally increment the build (and version?) of my files using Visual Studio (2005). 25 Answers ...
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How can I get the client's IP address in ASP.NET MVC?

...e { szIP = szXForwardedFor; if (szIP.IndexOf(",") > 0) { string [] arIPs = szIP.Split(','); foreach (string item in arIPs) { if (!isPrivateIP(item)) { return item; ...
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HTTP status code 0 - Error Domain=NSURLErrorDomain?

... There is no HTTP status code 0. What you see is a 0 returned by the API/library that you are using. You will have to check the documentation for that. share | ...