Bash/Linux - Compare decimal numbers in a script, data from a .csv column. 0. 22. bash, how, to, compare, numbers, shell, video, training, tutorials, lectures, vienna, edinburgh, unix 84. Operator Syntax Description Example eq INTEGER1 -eq INTEGER2 INTEGER1 is equal to INTEGER2 #!/bin/bash read -p "Please enter and confirm number 10 via keyboard : " n For example, add a base 10 integer to a base 2 integer. Write below script in compare.sh file. With the Bash Arithmetic Expansion, you can perform calculations between different arithmetic bases. Numbers should be compared with -eq, = is for string comparison. In my last article I shared some examples to get script execution time from within the script.I will continue with articles on shell scripts. Historically, the test command existed first (at least as far back to Unix Seventh Edition in 1979). In this post, we will show you how to compare numbers in bash. In this article i will share examples to compare strings in bash and to check if string contains only numbers or alphabets and numbers etc in shell script in Linux. Compare Strings in Bash. How to Compare Numbers or Integers in Bash In my earlier article I gave you an overview and difference between strings and integers in bash. To perform a numeric comparison operation in Bash, you must use the “test” state within an if or loop. Floating point comparison in shell. In your case it should also work since the numbers are likely to be stored identically, but it's better to use the conceptually correct operator. test: The command to perform a comparison; 1:The first element you are going to compare.In this example, it's the number 1 but it could be any number, or a string within quotes.-eq: The method of comparison.In this case, you are testing whether one value equals another. This Post will quickly tell you how to do bash compare numbers in script. to compare numbers.For example, test 0 = 00 is false, but test 0 -eq 00 is true. How to compare two floating point numbers in Bash? Under bash shell, you can directly compare numeric values using double parentheses like “((expression))”. 1. I have to variables, e.g. Detect python version in shell script. How to compare floating point / decimal / version numbers using bash in Linux June 3, 2020 November 19, 2017 by admin I could not find any single utility in bash which can do such comparison for versions or decimals or floating point numbes unless it is an integer. 2: The element you are comparing the first element against.In this example, it's the number 2. Syntax: ((n1 > n2)) Example: Compare two values and check if one is greater than other value. Operators for bash number comparison To do so you need to use test condition within if else loop. In Bash shell scripts, we can do a number comparison. 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