shell 在bash中将字符串拆分为数组简介 在这个函数的底部，你会发现一个函数，它可以将string转换为一个array，语法如下：使用awk：注意for循环中echo语句，如果删除选项-e，您将看到：这里有一种方法，当数据包含反斜杠序列、空格和其他字符时，它不会出错：由于以下注解，在示例文本中添加了一些内容：如果用AA =A或AA =A替换AA=A，则会中断\nA -另一个人
Method 1: Split string using read command in Bash Here’s my sample script for splitting the stringusing read command: #!/bin/bash # # Script to split a string based on the delimiter my_string="Ubuntu;Linux Mint;Debian;Arch;Fedora" IFS=';' read -ra my_array <<< "$my_string" #Pr...
我在循环中打印它时只得到第一个字符串,没有括号围绕$IN它起作用。 您可以设置内部字段分隔符(IFS)变量,然后将其解析为数组。当在命令中发生这种情况时,对IFS的分配仅发生在该单个命令的环境中(要read)。然后它根据IFS变量值将输入解析为一个数组,然后我们可以迭代它。 IFS=';'read-ra ADDR <<<"$IN"forii...
_repeat() { #@ USAGE: _repeat string number _REPEAT=$1 while (( ${#_REPEAT} < $2 )) ## Loop until string exceeds desired length do _REPEAT=$_REPEAT$_REPEAT$_REPEAT ## 3 seems to be the optimum number done _REPEAT=${_REPEAT:0:$2} ## Trim to desired length } repeat() { ...
请注意, even hyphens are placed as characters; therefore, this method cannot split the string on any delimiter. Instead, it breaks the string into an array of characters. There is one exception to this approach. If you use spaces between characters, the process ignores the spaces and there ...
In this example, we used awk to split a string into an array. Thesplitfunction in awk divides the string into an arrayausing space as the delimiter. We then printed the second element of the array, resulting in the output ‘Array’. ...
Changing the Delimiter Prompt String Assign the Words to Array Conclusion Share: Bash ships with a number of built-in commands that you can use on the command line or in your shell scripts. In this article, we’ll explore the built-in read command. Bash read Built-in read is a bash...
Split a string on a delimiterCAVEAT: Requires bash 4+This is an alternative to cut, awk and other tools.Example Function:split() { # Usage: split "string" "delimiter" IFS=$'\n' read -d "" -ra arr <<< "${1//$2/$'\n'}" printf '%s\n' "${arr[@]}" }...
csv 将Bash数组转换为分隔字符串你把arrayids通过一个空格合并后的字符串构建转移到一个类型为string的新...
Reads its input from a file (seeShell Scripts), from a string supplied as an argument to the-cinvocation option (seeInvoking Bash), or from the user’s terminal. Breaks the input into words and operators, obeying the quoting rules described inQuoting. These tokens are separated bymetacharacte...