当我们运行这个脚本时,如果小于 150,它将打印数字。 If-statement-Bash-Script-Example if-else Statement 除了普通的 if 语句之外,我们还可以用 else 块扩展 if 语句。基本思想是,如果语句为真,则执行 if 块。如果语句为假,则执行 else 块。 Syntax : if [ condition_command ] then command1 command2 ……...
它的基本格式如下：caseexpression in pattern1)statement1;;pattern2)statement2;;pattern3)statemen...
Bash Shell Conditional Statements Conditionals let us decide whether to perform an action or not, this decision is taken by evaluating an expression. The most basic form is: if [ expression ]; then statements elif [ expression ]; then statements else statements fi ...
Csh if statement interactive use, The value 1 is equivalent to FALSE at shell level.. Also please keep in mind that csh is a bit fishy since theif is not a csh keyword, but rather a builtin command.. In csh, the if builtin calls a separate parser that reads until the statement was...
Use if statement in bash Let's create a script that tells you if a given number is even or not. Here's my script namedeven.sh: #!/bin/bash read -p "Enter the number: " num mod=$(($num%2)) if [ $mod -eq 0 ]; then ...
'Else if'in bash scripting, often written as'elif', is used to check multiple conditions in your code. It is used with the syntax,if [firstStatement]; then... elif [secondCondition]; then... else. It’s a powerful tool that allows your scripts to make decisions based on various scen...
An alternative to if-else statements in shell scripting is the case statement. The case statement allows you to match a value against multiple patterns and execute different blocks of code based on the match. Here’s an example: case$varin1)echo"Variable is 1.";;2)echo"Variable is 2."...
if you want to select one of many blocks of code to execute. It checks expression 1, if it is true executes statement 1,2. If expression1 is false, it checks expression2, and if all the expression is false, then it enters into else block and executes the statements in the else block...
Linux shell while循环语句 for :明确循环次数 while :不确定循环换次数 while循环 (1) while CONDITION;do statement statement <改变循环条件真假的语句> done 编写脚本,计算1--100的和 编写while...解决intelliJ Idea 代码不清晰问题 1.总体方法,更改其JDK 步骤: 1、下载安装插件 2、返回主界面 一、按...
An alternative to if-else statements in shell scripting is the case statement. The case statement allows you to match a value against multiple patterns and execute different blocks of code based on the match. Here’s an example: case$varin1)echo"Variable is 1.";;2)echo"Variable is 2."...