November 2016
Intermediate to advanced
697 pages
14h 44m
English
Content preview from Julia: High Performance ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 9. Running External Programs
Sometimes, your code needs to interact with programs in the outside world, be it the operating system in which it runs, or other languages such as C or FORTRAN. This chapter shows how straightforward it is to run external programs from Julia and covers the following topics:
- Running shell commands—interpolation and pipelining
- Calling C and FORTRAN
- Calling Python
- Performance tips—a summary
Running shell commands
To interact with the operating system from within the Julia REPL, there are a few helper functions available as follows:
pwd(): This function prints the current directory, for example,"d:\\test"cd("d:\\test\\week1"): This function helps to navigate to subdirectories- In the interactive shell, you can also use ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.