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Extracting the last n characters from a string in R
How can I get the last n characters from a string in R?
Is there a function like SQL's RIGHT?
15 Answers
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Using Html.ActionLink to call action on different controller
I am trying to navigate between controllers using ActionLink . I will tell my problem with an example.
9 Answers
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Specify sudo password for Ansible
How do I specify a sudo password for Ansible in non-interactive way?
23 Answers
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Microsoft.Office.Core Reference Missing
Using the example provided in codeproject I am struggling to work out where I can find the reference to the library Microsoft.Office.Core.
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How does this giant regex work?
I recently found the code below in one of my directories, in a file called doc.php . The file functions or links to a file manager. It's quite nicely done. Basically, it lists all the files in the current directory, and it lets you change directories.
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How do I display a text file content in CMD?
I want to display the content of a text file in a CMD window. In addition, I want to see the new lines that added to file, like tail -f command in Unix.
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NoSql vs Relational database
Recently NoSQL has gained immense popularity.
9 Answers
9
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Import PEM into Java Key Store
I am trying to connect to an SSL server which requires me to authenticate myself. In order to use SSL over Apache MINA I need a suitable JKS file. However, I have only been given a .PEM file.
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Determine the number of NA values in a column
I want to count the number of NA values in a data frame column. Say my data frame is called df , and the name of the column I am considering is col . The way I have come up with is following:
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How to enter a multi-line command
Is it possible to split a PowerShell command line over multiple lines?
12 Answers
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