12May 2020 by Andrew Treadway
How to schedule R scripts

How to schedule R scripts

R, System Administration
Running R with taskscheduleR and cronR In a previous post, we talked about how to run R from the Windows Task Scheduler. This article will talk about two additional approaches to schedule R scripts, including using the taskscheduleR package on Windows and the cronR package for Linux. For scheduling Python code, check out this post. Schedule R scripts with taskscheduleR Let's install taskscheduleR using the install.packages command. [code lang="R"] install.packages("taskscheduleR") [/code] Next, we just need to load the package to get started. [code lang="R"] library(taskscheduleR) [/code] Creating a sample R script to run automatically Before we do any scheduling, we need to first create a script. We'll save the code below in a file called "create_file.txt". This script will randomly generate a collection of integers and write them out to…
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10Dec 2018 by Andrew Treadway
10 R functions for Linux commands and vice-versa

10 R functions for Linux commands and vice-versa

File Manipulation, R, System Administration
This post will go through 10 different Linux commands and their R alternatives. If you're interested in learning more R functions for working with files like some of those below, also check out this post. How to list all the files in a directory Linux R What does it do? ls list.files() Lists all the files in a directory ls -R list.files(recursive = TRUE) Recursively lists all the files in a directory and all sub-directories ls | grep "something" list.files(pattern = "something") Lists all the files in a directory containing the regex "something" R [code lang="R"] list.files("/path/to/directory") list.files("/path/to/do/directory", recursive = TRUE) # search for files containing "something" in their name list.files("/path/to/do/directory", pattern = "something") # search for all CSV files list.files("/path/to/do/directory", pattern = ".csv") [/code] Linux [code lang="bash"] ls /path/to/directory…
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