In the above code, multiple conditions are used using the OR operator. To achieve a complex behavior, multiple conditions can also be used with the while loop using logical operators that include AND (&&), OR (||), or NOT (!). Bash while Loop Increment and Decrement The loop structure ...
i=0 while [ $i -lt 100 ]; do i=`expr $i + 1` echo $i done i=0 until [ $i -ge 100 ]; do i=`expr $i + 1` echo $i done For other until loop examples such as integer comparison, string comparison and multiple conditions, refer to those demonstrated in the while loop....
The method of using the “while” loop with multiple conditions is shown in the following script. A numeric value is taken from the user and the loop starts the iteration if the value is greater than 10 and the value is even. In each iteration, the value is printed and decremented by ...
6.2.3 Bash while loop With Multiple Conditions: The following example is demonstrating how multiple conditions are used with Bash while loop: #! /bin/bash num1=1 num2=5 while [[ $num1 -lt $num2 || $num1 == $num2 ]] do echo "The number is:"$num1 ((num1++)) done echo...
While ‘else if’ is a powerful tool for handling multiple conditions in bash scripting, it’s not the only one. An alternative approach is the ‘case’ statement. ‘Case’ statements can be more readable and easier to maintain than a long list of ‘elif’ conditions, especially when you’...
Onlyecho "Program 2 was executed."runs becausefalsehas a non-zero exit status. You can combine multiple OR operators so that only the first program with an exit status of 0 is executed: false||echo1||echo2echo3||false||echo4echoAthos||echoPorthos||echoAramis ...
本编程教程将讨论 bash 中的条件结构,尤其是具有单个和多个条件的 if 条件。 Bash 编程简介 Bash 是 UNIX 和 Linux 操作系统中的一个简单的命令行解释器。这个解释器允许我们使用命令行运行一些命令,这些命令可以通过在一个称为脚本的文件中键入它们来共同运行。 shell 脚本只不过是 bash 命令的集合,可以在 bash ...
BASH从多个csv文件中提取有条件的数据，对数据进行排序并删除双精度,需要加快进程由于两个文件的格式相同...
In this article, I present a few tricks to handle error conditions—Some strictly don't fall under the category of error handling (a reactive way to handle the unexpected) but also some techniques to avoid errors before they happen.
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 whether the given year is a leap year or not. ...