使用带有一个条件的 if 语句 语法: 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...
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...
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...
'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...
if...elif...else Statement Nested if Statements Multiple Conditions Test Operators Conclusion Share: This article will walk you through the basics of the bash if...else statement and explain you how to use it in your shell scripts. Decision-making is one of the most fundamental concepts of...
Example 4: If statement in bash with logical AND operator This example will show how to combine multiple conditions with a logicalANDcondition. You can also use logicalORconditions in yourIFstatement constructs. LogicalANDin bash code is written with double ampersand&&. Below is an example of lo...
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...
There are also conditions for file type check: Now that you are aware of the various comparison expressions let's see them in action in various examples. Use if statement in bash Let's create a script that tells you if a given number is even or not. ...
Bash allows using any number of if statements inside an if statement, that means we can use a nested if statement to test multiple conditions. It is helpful when we have to check multiple conditions inside an if statement. The general syntax of this statement is: ...
If Statement Syntax: if [ condition_command ] then command1 command2 …….. last_command fi Bash provides logical operators to combine multiple conditions in if statements. The common logical operators are: -eq: Equal -ne: Not equal