Q1. Can I have multiple conditions in a single if statement? A1. Yes, you can combine multiple conditions using logical operators such as && (AND) and || (OR) to create compound conditions within a single if statement. Q2. Can I use the if statement to check the existence of a file...
Combine multiple conditions with logical operators So far, so good. But do you know that you may have multiple conditions in a single by using logical operators like AND (&&), OR (||) etc? It gives you the ability to write complex conditions. Let's write a script that tells you whethe...
if [ condition-statement ]; then Commands.. fi 让我们看一个使用 if 条件的示例 bash 脚本。 脚本: #!/bin/bash echo "Enter your marks out of 100: " read marks if [ $marks -gt 100 ]; then printf "You have entered incorrect marks: $marks\n " fi 输出: 使用带有多个条件的 if 语...
Using a Bash If Statement with multiple conditions Using Nested If Statements Common Pitfalls and Errors Incorrect usage of the single bracket command [ How to solve the Binary Operator Expected Error? Why you should not use the || and && operators instead of a Bash If Statement? Detailed Exam...
'Else if'in bash scripting, often written as'elif', is used to check multiple conditions in your code. It is used with the syntax,if [firstStatement]; then... elif [secondCondition]; then... else. It’s a powerful tool that allows your scripts to make decisions based on various scen...
bash 中的条件语句，基础就是 Test 。 if 先来个实例： x=5; if [ $x = 5 ]; then e...
Notice that I have used the wildcard asterisk symbol (*) to define the default case which is the equivalent of an else statement in an if condition. Test conditions in bash There are numerous test conditions that you can use with if statements. Test conditions varies if you are working wit...
5.4.3If and Else Conditional expressions are powerful because you can use them to control how a Bash program that you’re writing is executed. One of the fundamental constructs in Bash programming is theIF statement. Code written inside of an IF statement is only executedifa certain condition ...
The case statement is used to execute commands based on multiple conditions. case value in pattern1) commands1 ;; pattern2) commands2 ;; *) default_commands ;; esac Example #!/bin/zsh echo "Enter a letter: " read letter case $letter in [a-z]) echo "You entered a lowercase letter...
Using if statement: You can use if condition with single or multiple conditions. Starting and ending block of this statement is define by ‘if’ and ‘fi’. Create a file named ‘simple_if.sh’ with the following script to know the use if statement in bash. Here, 10 is assigned to th...