There are multiple ways to insert values in the array but most of them are manual ones. But, adding values manually is not always a good idea especially when one wants to add hundreds of elements in one array. And in that case, you can read into an array where you can use the file...
前言:在编写sh脚本的时候,发现使用read命令和预期的效果不一样,,因为shell用的是zsh,查了一下发现bash和zsh中read命令的用法有些区别,这里记录一下。 读取字符 从标准输入中读取一个或多个字符 bash: read -n num input zsh: read -k num input 例子: root@hcss-ecs-b5f1 ~ ❯ read -k 1 myinput ...
$ declare -a ARRAYNAMEread -a命令则是将用户的命令行输入,存入一个数组。$ read -a dice上面命令将用户的命令行输入,存入数组dice。读取数组读取单个元素读取数组指定位置的成员,要使用下面的语法。$ echo ${array[i]} # i 是索引上面语法里面的大括号是必不可少的,否则 Bash 会把索引部分[i]按照原样...
# read command now stores a reply into the default build-in variable $REPLY read echo "You said $REPLY, I'm glad to hear that! " echo -e "What are your favorite colours ? " # -a makes read command to read into an array read -a colours echo "My favorite colours are also ${col...
shell 如何在Bash中将空格分隔的字符串读入数组？为了将字符串转换为数组，从字符串创建一个数组，让字符...
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read命令 read命令被用来从标准输入读取单行数据,这个命令可以用来读取键盘输入,当使用重定向以及默认选项的情况下,可以读取文件中的一行数据,此时read会将换行符视为行尾,但是可以使用-d选项更改。 语法 参数 -a array: 将单词存储在一个名为array的索引数组中,数组元素的编号从0开始。 -d delim: 将定界符设置为...
问如何使用bash命令将csv转换为二进制文件？EN在Linux操作系统中，可以使用各种命令和工具来处理和转换文本...
shell 如何在Bash中将空格分隔的字符串读入数组？为了将字符串转换为数组，从字符串创建一个数组，让字符...
The easiest and safest way to read a file into a bash array is to use the mapfile builtin which read lines from the standard input. When no array variable name is provided to the mapfile command, the input will be stored into the $MAPFILE variable. Note that the mapfile command will...