How to resolve the algorithm Increment a numerical string step by step in the UNIX Shell programming language
Published on 12 May 2024 09:40 PM
How to resolve the algorithm Increment a numerical string step by step in the UNIX Shell programming language
Table of Contents
Problem Statement
Increment a numerical string.
Let's start with the solution:
Step by Step solution about How to resolve the algorithm Increment a numerical string step by step in the UNIX Shell programming language
Source code in the unix programming language
# All variables are strings within the shell
# Although num look like a number, it is in fact a numerical string
num=5
num=`expr $num + 1` # Increment the number
num=5
let num=num+1 # Increment the number
let "num = num + 1" # Increment again. (We can use spaces inside quotes)
((num = num + 1)) # This time we use doublebrackets
let num+=1 # This time we use +=
let "num += 1"
((num += 1))
integer num=5 # Declare an integer...
num=$num+1 # ...then increment without the let keyword.
@ num = 5
@ num += 1
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