How to resolve the algorithm Queue/Usage step by step in the UNIX Shell programming language

Published on 12 May 2024 09:40 PM

How to resolve the algorithm Queue/Usage step by step in the UNIX Shell programming language

Table of Contents

Problem Statement

Create a queue data structure and demonstrate its operations. (For implementations of queues, see the FIFO task.)

Operations:

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Queue/Usage step by step in the UNIX Shell programming language

Source code in the unix programming language

# any valid variable name can be used as a queue without initialization
 
queue_empty foo && echo foo is empty || echo foo is not empty
 
queue_push foo bar
queue_push foo baz
queue_push foo "element with spaces"
 
queue_empty foo && echo foo is empty || echo foo is not empty
 
print "peek: $(queue_peek foo)"; queue_pop foo
print "peek: $(queue_peek foo)"; queue_pop foo
print "peek: $(queue_peek foo)"; queue_pop foo
print "peek: $(queue_peek foo)"; queue_pop foo


  

You may also check:How to resolve the algorithm Cartesian product of two or more lists step by step in the PicoLisp programming language
You may also check:How to resolve the algorithm Sorting algorithms/Shell sort step by step in the Dart programming language
You may also check:How to resolve the algorithm Environment variables step by step in the BBC BASIC programming language
You may also check:How to resolve the algorithm FizzBuzz step by step in the Fantom programming language
You may also check:How to resolve the algorithm Tokenize a string with escaping step by step in the SNOBOL4 programming language