R Syntax for a Simple For Loop

For loops in R are useful tidbits of code to keep track of a counter, iterate through a variable, or do a complex operation on a subset of variables.  Below is an example R script showing the code and syntax needed to do some simple tasks with R for loops.

Python List Comprehension

Python list comprehension enables for easy manipulation of a list variable.  For example, list comprehension can be used to convert from a string to an integer or float as well as do some common operation on a list.  Below is an example script that shows the syntax for list comprehension and how to utilize the code in Python.  Hope its helpful.

UNIX For Loop through Files in Directory

Sometimes I want to do a particular task to each file in a directory using a UNIX shell script, but for some reason I can never remember the correct syntax to do so.  Here is a quick example bash script to loop through all files of a particular extension in a directory and do an action with the filenames.


The above example loops through all .tar.gz files in the directory and extracts any text file within those files.