String Comparison Operator in Bash Script We can compare two strings using the = (is equal to) operator in the Bash script. We also use the == operator to compare the string. The == is a synonym of the = operator for string comparison. For example, consider a Bash script First.sh co...
https://www.namehero.com/blog/bash-string-comparison-the-comprehensive-guide https://linuxize.com/post/how-to-compare-strings-in-bash More Articles from Unixmen Bash Script Example: Guide for Beginners Bash: Concatenate Strings Easily with Our Simple Guide ...
String comparison includes comparing the value of two strings - their length or sequence of characters. Compare strings when checking for certain conditions before proceeding to the next step of the script. This tutorial will teach you how to compare strings using a Bash script. Prerequisites A sy...
Get started with Bash Shell script learning with practical examples. Also test your learning with practice exercises. Linux HandbookAbhishek Prakash Example 3: Check if string is null or empty in Bash Unlike some other languages like C++, in Bash you can check whether the string is null or emp...
Here is another script that takes the input from the user and compares the given strings. In this example, we will use the[[command and==operator. #!/bin/bashread-p"Enter first string: "VAR1read-p"Enter second string: "VAR2if[["$VAR1"=="$VAR2"]];thenecho"Strings are equal."el...
Bash, short for "Bourne Again SHell," is a powerful scripting language used in Unix-based operating systems. One of the fundamental constructs in Bash programming is the if statement. The if statement allows you to control the flow of your script based on specific conditions. In this article...
string comparison(= or ==) integer and string comparison; Simple logical operators in BASH; Unix Boolean Operators ( &&, -a, ||, -o ); $( cd "$( dirname ${0} )" && pwd )脚本源文件目录 Getting the source directory of a Bash script from within【@stackoverflow】; ...
In this tutorial, we’re going to learn how to negate such conditions in bash, concentrating on the number and string comparison. 2. Integer Comparison Let’s say we have two variables that hold numbers.In bash, we can check for their inequality using the-necomparison operator: ...
Let me share a simple example of comparing two numberspassed as arguments to the shell script: #!/bin/bash ## Check if the numbers are equal or not read -p "Enter the first number: " num1 read -p "Enter the second number: " num2 ...
Example Script number.sh #!/bin/bash echo -n “Enter a number 1 < x < 10: " read num if [ “$num” -lt 10 ]; then if [ “$num” -gt 1 ]; then echo “$num*$num=$(($num*$num))” else echo “Wrong insertion !” ...