# bash nested if/else if [ $choice -eq 1 ] ; then echo "You have chosen word: Bash" else if [ $choice -eq 2 ] ; then echo "You have chosen word: Scripting" else if [ $choice -eq 3 ] ; then echo "You have chosen word: Tutorial" else echo "Please make a choice between ...
When using nested ‘else if’ statements, it’s crucial to keep your code organized and easy to read. Make sure to indent your code properly to indicate the hierarchy of your conditions. Also, while nested ‘else if’ statements can make your scripts more powerful, they can also make them...
许多Linux发行版的默认shell是GNU Bourne-Again shell (bash)。Bash之后是Bourne shell (sh)。 当您第一次启动shell时,它使用位于.bashrc或.bash_profile文件中的启动脚本,该脚本允许您自定义shell的行为。 当以交互方式使用shell时,它在等待用户的命令时显示一个$。这称为shell提示符。 [username@host ~]$ 如果...
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...
Let’s explore an example to demonstrate the application of nested if statements: #!/bin/bash num=10 if [ $num -gt 0 ] then echo "The number is positive." if (( num % 2 == 0 )) then echo "The number is even." else
像IF语句一样,FOR和WHILE语句可以嵌套: #!/usr/bin/env bash# File: nestedloops.shfornumberin{1..3}doforletterina bdoecho"number is$number, letter is$letter"donedone 运行: $ bash nestedloops.sh numberis1, letterisa numberis1, letterisb ...
bigmath.sh is a bash script condexif.sh is a bash script forloop.sh is a bash script letsread.sh is a bash script manyloops.sh is a bash script math.sh is a bash script nested.sh is a bash script simpleelif.sh is a bash script simpleif.sh is a bash script simpleifelse.sh is...
像IF语句一样,FOR和WHILE语句可以嵌套: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #!/usr/bin/env bash # File: nestedloops.sh for number in {1..3} do for letter in a b do echo "number is $number, letter is $letter" done done 运行: 代码语言:javascript 代码运行次数:0 运行...
创建一个空数组来存储嵌套序列 nested_sequence=() # 外层循环 for ((i=1; i<=outer_range; i++)) do # 内层循环 for ((j=1; j<=inner_range; j++)) do # 将内层循环的值添加到嵌套序列数组中 nested_sequence+=("$i-$j") done done # 打印嵌套序列数组的内容 echo "${nested_sequence[@...
用户登录进程执行shell,首先shell分析命令行,然后根据环境变量PATH的设置(不会查找当前目录),查找系统文件目录,找到一个文件名字或者是一个文件的完全路径名,当找到文件后,根据其他参数列表,执行该文件。 二、常见的shell 如何查看当前系统支持的shell类型? [zbj@localhost ~]$cat/etc/shells...