# read-single: read multiple values into default variable echo -n "Enter one or more values > " read echo "REPLY = '$REPLY'"上面脚本的运行结果如下。$ read-single Enter one or more values > a b c d REPLY = 'a b c d'read命令除了读取键盘输入,可以用来读取文件。#...
az account show--query[name,id,user.name]# return multiple valuesaz account show--query[name,id,user.name]-otable# return multiple values as a table 有关返回多个值的详细信息,请参阅“获取多个值”。 重命名查询中的属性 以下查询演示如何在查询多个值时使用 { } (多选哈希) 运算符来获取字典而...
az account show --query [name,id,user.name] # return multiple values az account show --query [name,id,user.name] -o table # return multiple values as a table For more information about returning multiple values, see Get multiple values. Renaming properties in a query The following querie...
possibly changing the values of shell variables, but don't return its result. Example:$ ((a=2+3)); echo "a=$a"a=5((a=$a+7)) # Add 7 to a((a =
Most of the time when you’re writing bash scripts you won’t be comparing two raw values or trying to find something out about one raw value, instead you’ll want to create a logical statement about a value contained in a variable. Variables behave just like raw values in logical express...
Bash 简介 转自 https://wangdoc.com/bash/intro.html Bash 是 Unix 系统和 Linux 系统的一种 Shell(命令行环境),是目前绝大多数 Linux 发行版的默认 Shell。 目录 [隐藏] 简介 基本语法 模式扩展 引号和转义 变量 字符串操
Sets tab stops. If only one n is specified, tab stops are set at multiples of n. If multiple values separated by commas are speci‐ fied, tab stops are set at those positions, and then continue with the same spacing as the last two. For example, -x9,17 will set ...
Return status of most recently executed command $$ Process id of current process Examples: Command Line Arguments7The 'set' command can be used to assign values to positional parameters bash control structures if-then-else case loops for while until select8 if statement statements are executed ...
# Multiple arguments can also be passed. $ random_array_element 1 2 3 4 5 6 7 3 1. 2. 3. 4. 5. 6. 7. 循环一个数组 每次printf调用时,都会打印下一个数组元素。当 打印到达最后一个数组元素时,它 再次从第一个元素开始。 arr=(a b c d) ...
Quoted string expansion. This construct expands single or multiple escaped octal or hex values into ASCII or Unicode characters. Advanced Bash-Scripting Guide: 5.2. Escaping 写道 The $' ... ' quoted string-expansion construct is a mechanism that uses escaped octal or hex values to assign ASCII...