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How do I perform a Perl substitution on a string while keeping the original?
In Perl, what is a good way to perform a replacement on a string using a regular expression and store the value in a different variable, without changing the original?
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How to only get file name with Linux 'find'?
I'm using find to all files in directory, so I get a list of paths. However, I need only file names. i.e. I get ./dir1/dir2/file.txt and I want to get file.txt
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MySQL dump by query
Is it possible to do mysqldump by single SQL query ?
9 Answers
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how to get the last character of a string?
How to get the last character of the string:
12 Answers
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How to install an apk on the emulator in Android Studio?
How do you install an apk on the emulator in Android Studio from the terminal?
12 Answers
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YAML current date in rmarkdown
I'm wondering if there's a trick to put the current date in the YAML front-matter of a .rmd document to be processed by knitr and the rmarkdown package. I used to have the following line at the top of my wiki pages,
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How to write into a file in PHP?
I have this script on one free PHP-supporting server:
9 Answers
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Hiding axis text in matplotlib plots
I'm trying to plot a figure without tickmarks or numbers on either of the axes (I use axes in the traditional sense, not the matplotlib nomenclature!). An issue I have come across is where matplotlib adjusts the x(y)ticklabels by subtracting a value N, then adds N at the end of the axis.
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How does the Windows Command Interpreter (CMD.EXE) parse scripts?
I ran into ss64.com which provides good help regarding how to write batch scripts that the Windows Command Interpreter will run.
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