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How to ignore xargs commands if stdin input is empty?
Consider this command:
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C: differences between char pointer and array [duplicate]
Consider:
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Rails: Logging the entire stack trace of an exception
I have been trying to figure out the right way to log a stack trace. I came across this link which states that logger.error $!, $!.backtrace is the way to go but that does not work for me log_error does. As per documentation I do not see how passing a second argument to the error method would ...
Convert PHP closing tag into comment
One of the lines in my script contains a PHP closing tag inside a string. Under normal operation this does not cause a problem, but I need to comment out the line.
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How do I programmatically determine if there are uncommitted changes?
In a Makefile, I'd like to perform certain actions if there are uncommitted changes (either in the working tree or the index). What's the cleanest and most efficient way to do that? A command that exits with a return value of zero in one case and non-zero in the other would suit my purposes.
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What __init__ and self do on Python?
I'm learning the Python programming language and I've came across something I don't fully understand.
18 Answers
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What is the most efficient way to loop through dataframes with pandas? [duplicate]
I want to perform my own complex operations on financial data in dataframes in a sequential manner.
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Foreach loop, determine which is the last iteration of the loop
I have a foreach loop and need to execute some logic when the last item is chosen from the List , e.g.:
26 Answers
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What is the smallest possible valid PDF?
Out of simple curiosity, having seen the smallest GIF , what is the smallest possible valid PDF file?
4 Answers
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Bash Script: count unique lines in file
I have a large file (millions of lines) containing IP addresses and ports from a several hour network capture, one ip/port per line. Lines are of this format:
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