Unix Commands and File Parsing | Dataford Interview Questions

Write a program that imports a file containing Unix commands and prints the last letter of each line.

Represent the file as a list of strings, where each string is one input line and may include a trailing or \r . Return a list containing the final character of each line after removing only its line terminator. For an empty line, return an empty string. The caller can print one returned value per line.

Function signature: last_characters(lines)

The input contains at most 1,000 lines. Preserve all characters other than line terminators.

Constraints

0 <= len(lines) <= 1,000
Each element of lines is a string
A line may end with \n, \r\n, or no line terminator
Only line terminators are removed
Return one output string for every input line

Function Signature

def last_characters(lines):

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