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How to pass the value of a variable to the stdin of a command?
...ted to the line(s) echoed. If you also want the terminal to be connected, then you'll need to be fancier:
{ echo "$var"; cat - ; } | command
( echo "$var"; cat - ) | command
This means that the first line(s) will be the contents of $var but the rest will come from cat reading its standard inp...
Sublime Text 3 how to change the font size of the file sidebar?
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thenks worked for me ! sublime 3 with Material Theme
– A.N
May 7 '18 at 19:38
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Rename Pandas DataFrame Index
...butes', axis='columns')
If you set the index with some of the columns, then the column name will become the new index level name. Let's append to index levels to our original DataFrame:
df1 = df.set_index(['state', 'color'], append=True)
df1
Notice how the original index has no name. We can...
How to get a JavaScript object's class?
...only works for named functions. I.e., if I define var Foo = function() {}, then for var foo = new Foo(), foo.constructor.name will give you empty string.
– KFL
Sep 1 '14 at 8:02
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What is a daemon thread in Java?
...es." What that means is, if the program does not explicitly kill the JVM, then the JVM will automatically kill itself when the last non-daemon thread ends. Normal threads define "when the program exits." Daemon threads don't.
– Solomon Slow
Dec 18 '15 at 0:2...
How can I open the interactive matplotlib window in IPython notebook?
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Restart kernel and clear output (if not starting with new notebook), then run
%matplotlib tk
For more info go to Plotting with matplotlib
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The forked VM terminated without saying properly goodbye. VM crash or System.exit called
...) in .m2 is corrupt. Deleting ~/.m2/repository rm -rf ~/.m2/repository and then mvn install resolved it for me.
– ch4nd4n
Jun 12 '18 at 12:16
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Perl build, unit testing, code coverage: A complete working example
...:More, Devel::Cover)
Start out with a directory for your Perl project and then create a "lib" directory and a "t" directory under your project directory:
HelloPerlBuildWorld
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|----------> lib
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|----------> t
In the "lib" directory, create a text file named...
How to repeat a string a variable number of times in C++?
... @Brent The OP asked for both - "'n' spaces (or any string)", and then goes on to demonstrate their intent with a single period as the string. English is not many people's first language so you sometimes need to guess their exact requirements and when analysed, the question is really asking...
Paging with Oracle
...this snippet of code, if you have 1000 rows, the sort order is applied and then each row is assigned a rownum. The outer select(s) use those row numbers to locate the 'page' you are looking for based on your pagesize.
– Brian Schmitt
Nov 20 '11 at 18:54
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