WebDec 9, 2003 · Comparing multiple variables containing numbers a=1 456 b=4928 c=23 d=456 I want to compare four variables to get the name of the variable having the highest number 2. Shell Programming and Scripting Comparing decimal numbers between 0 and 1 For numbers between 0 and 1 the below logic is not working. WebAug 3, 2024 · The bash script should look as follows for this task. #!/bin/bash m=1 n=2 if [ $n -eq $m ] then echo "Both variables are the same" else echo "Both variables are different" fi Output: Both variables are different 2. Using if-else to compare two values The more common use of if-else in shell scripts is for comparing two values.
How to Compare Numbers and Strings in Linux Shell Script
WebTo make it shorter for use, use this function: compare_nums () { # Function to compare two numbers (float or integers) by using AWK. # The function will not print anything, but it will return 0 (if the comparison is true) or 1 # (if the comparison is false) exit codes, so it … WebFeb 1, 2024 · The best bet is to use bc like this: $ bc <<<"248*80/100" 198 The shell (bash,sh) is able to calculate only integers: $ bash -c 'echo $ ( (248*80/100))' 198 The ksh93 is able to deal with floating point math: $ ksh -c 'echo $ ( (248*0.8))' 198.4 And with a format for 0 decimals: $ ksh -c 'printf "%.0f\n" "$ ( (248*0.8))"' zsh does it differently: outback 77505
The -ne Operator in Bash Delft Stack
WebJun 14, 2013 · Shells You can use POSIX arithmetic expansion for integer arithmetic echo "$ ( (...))": $ echo "$ ( (20+5))" 25 $ echo "$ ( (20+5/2))" 22 Quite portable ( ash dash yash bash ksh93 lksh zsh ): Using printf ability to print floats we can extend most shells to do floating point math albeit with a limited range (no more than 10 digits): Web2 days ago · Bash provides various operators to compare strings, including ==, !=, <, >, -z, and -n. Let's take a closer look at each of these operators. = = Operator The == operator checks if two strings are equal. Here's an example − Example string1 ="Hello" string2 ="Hello" if [ "$string1" == "$string2" ] then echo "The two strings are equal" fi Output WebJan 31, 2024 · There are several issues with the script: bash tests are either done with test, [ .. ] or [[ .. ]]; (..) means sub-shell Assignment are made without spaces, x = 1920 will call … rohn side mount tapered degrees