If-elif-else Statement 在bash 脚本中,如果希望使用 if 语句应用多个条件,则使用 if elif else。在这种类型的条件语句中,如果满足第一个条件,则执行下面的代码,否则检查下一个 if 条件,如果不匹配,则执行下面的 else 语句中提到的命令。其语法和示例如下所示。 Syntax : if [ condition_command ] then comman...
I am fine,thank you!"elif["$1"==""];thenecho"你必须要输入一个参数，比如 > {$0 someword}...
shell脚本中,这些判断语句一般都是和if、else、elif、for和while等语句一起使用。 在脚本编写中,条件判断语句常常用于多种情况的判断,符合哪一种情况就执行哪一种的命令。 二、shell条件判断语句:if 1、流程控制:if单分支结构 语法: if 条件判断;then 条件判断成功时执行的操作 … fi 例子: 结合......
3. How to write multiple if conditions in shell script? To write multiple if conditions in a shell script, you can use elif statements. Here’s the syntax: if[condition1];then# code to execute if condition1 is trueelif[condition2];then# code to execute if condition1 is false and condi...
if COMMAND then EXPRESSIONS elif COMMAND then EXPRESSIONS else EXPRESSIONS fi This structure is far from a single line. Moreover, we can have many lines inEXPRESSIONS. On top of that, we can expandCOMMANDwith the()syntax, adding still more lines. Finally, there are the&∧||operators, enabli...
'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...
linux shell脚本中的一行if/else条件看起来你的思路是对的，你只需要在“;“然后”语句。而且我会用...
Bash supports if-else statements so that you can use logical reasoning in your shell scripts. The generic if-else syntax is like this: if [ expression ]; then ## execute this block if condition is true else go to next elif [ expression ]; then ...
else echo “Wrong insertion !” fi string.sh #! /bin/bash word=a if [[ $word == "b" ]] then echo "condition b is true" elif [[ $word == "a" ]] then echo "condition a is true" else echo "condition is false" fi
This comprehensive tutorial will teach you the syntax and basics of if, elif, and else statements in Bash scripting. You’ll learn how to make decisions in your shell scripts.