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What linux shell command returns a part of a string? [duplicate]
...mmand that can return a part of the string. In most programming languages, it's the substr() function. Does bash have any command that can be used for this purpose. I want to be able to do something like this...
substr "abcdefg" 2 3 - prints cde .
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Disable Maven warning message - “Selected war files include a WEB-INF/web.xml which will be ignored”
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I got rid of this warning in maven 3.0.1 with the following build configuration (i believe perhaps web.xml is added to the project by other means, and should't be packaged by default):
<project>
...
<build>
<plugins>
<...
How to remove line breaks from a file in Java?
...rings are immutable -- calling replace doesn't change the original String, it returns a new one that's been changed. If you don't assign the result to text, then that new String is lost and garbage collected.
As for getting the newline String for any environment -- that is available by calling Sys...
Can I inject a service into a directive in AngularJS?
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You can do injection on Directives, and it looks just like it does everywhere else.
app.directive('changeIt', ['myData', function(myData){
return {
restrict: 'C',
link: function (scope, element, attrs) {
scope.name = myData.name;
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How do I create test and train samples from one dataframe with pandas?
...t in the form of a dataframe and I was wondering how I would be able to split the dataframe into two random samples (80% and 20%) for training and testing.
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Properly escape a double quote in CSV
... then a double-quote appearing inside a field must be escaped by preceding it with another double quote."
– tommed
Feb 18 '15 at 16:35
4
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How to use mongoimport to import csv
Trying to import a CSV with contact information:
21 Answers
21
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write a shell script to ssh to a remote machine and execute commands
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There are multiple remote linux machines, and I need to write a shell script which will execute the same set of commands in each machine. (Including some sudo operations). How can this be done using shell scripting?
You can do this with ssh, for example:
#!/bin/bash
USERNAME=some...
Is it possible to rename a maven jar-with-dependencies?
I'm currently using the jar-with-dependencies assembly to create such a jar. However, the name of my jar is a bit long.
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How do you completely remove the button border in wpf?
I'm trying to create a button that has an image in it and no border - just like the Firefox toolbar buttons before you hover over them and see the full button.
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