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Send string to stdin
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You can use one-line heredoc
cat <<< "This is coming from the stdin"
the above is the same as
cat <<EOF
This is coming from the stdin
EOF
or you can redirect output from a command, like
diff <(ls /bin) <(ls /u...
Pull new updates from original GitHub repository into forked GitHub repository
I forked someone's repository on GitHub and would like to update my version with commits and updates made in the original repository. These were made after I forked my copy.
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Java SE 6 vs. JRE 1.6 vs. JDK 1.6 - What do these mean?
...s; there are more complex editions (Enterprise Edition – EE) and simpler ones (Micro Edition – ME – for mobile environments).
The JDK includes the compiler and other tools needed to develop Java applications; JRE does not. So, to run a Java application someone else provides, you need JRE; to...
A Regex that will never be matched by anything
... quite as elegant, but the more ideas you get the likelier you are to find one working across all RE engines of interest): r'a\bc', looking for a word-boundary immediately surrounded by letters on both sides (variant: nonword characters on both sides).
– Alex Martelli
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String concatenation: concat() vs “+” operator
... two object allocations (the result String and its backing char[], neither one redundant), and any number of strings with three allocations (the String[], the result String, and the backing char[], with only the first being redundant). As it is, using StringBuilder will at best require four allocati...
How can I reset or revert a file to a specific revision?
...stry-path will "draw a line" between two commits and -1 will show you just one version, and --reverse will ensure the first entry emitted is the oldest one.
– Chris Cogdon
Nov 19 '14 at 19:29
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C# Test if user has write access to a folder
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Funnily enough I had one of those other questions open in another tab but hadn't seen the answer about DirectorySecurity, teach me to read all the answers not just the accepted one;-)
– Chris B
Sep 11 '09 at...
Why does C# allow {} code blocks without a preceding statement?
... a fact which is observable in mixed-language projects if the first thing done with a variable in a loop is to pass it as an out parameter to an interface implementation written in another language, and that implementation reads the variable before writing it.
– supercat
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How to bind inverse boolean properties in WPF?
... if (targetType != typeof(bool))
throw new InvalidOperationException("The target must be a boolean");
return !(bool)value;
}
public object ConvertBack(object value, Type targetType, object parameter,
System.Globalization.CultureInfo culture...
Converting XML to JSON using Python?
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There is no "one-to-one" mapping between XML and JSON, so converting one to the other necessarily requires some understanding of what you want to do with the results.
That being said, Python's standard library has several modules for par...