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}...
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...
'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 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...
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 ...
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 ...
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...
Using else if statement in bash You can use an elif (else-if) statement whenever you want to test more than one expression (condition) at the same time. For example, the followingage.shbash script takes your age as an argument and will output a meaningful message that corresponds to your...
The “if then elif then else fi” example mentioned in above can be converted to the nested if as shown below. #!/bin/bash count=99 if [ $count -eq 100 ] then echo "Count is 100" else if [ $count -gt 100 ] then echo "Count is greater than 100" ...