Learn how to use the read command to get the user input into an array in bash scripts.Jun 2, 2024 — Sagar Sharma Use Read Command to Get User Inputs Into an Array in Bash There are multiple ways to insert values in the array but most of them are manual ones. But, adding values...
# 定义一个数组declare-amy_array# 调用函数,将文件内容读入数组read_file_into_array"file.txt""my_array"# 遍历数组,并打印每个元素forelementin"${my_array[@]}";doecho"$element"done 在这个示例中,我们首先定义了一个名为my_array的数组。然后,调用read_file_into_array函数,将文件file.txt的内容读入到...
# 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 ${col...
#!/bin/bash read -a data # read data into array while getopts ":1234567:" opt "${data[@]/#/-}" # prepend '-' to each do case "$opt" in 1) echo "you selected option 1" ;; 2) echo "you selected option 2" ;; 3) echo "you selected option 3" ;; 4) echo "you selecte...
$ 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...
$ help read | head read: read [-ers] [-a array] [-d delim] [-i text] [-n nchars] [-N nchars] [-p prompt] [-t timeout] [-u fd] [name ...] Read a line from the standard input and split it into fields. Reads a single line from the standard input, or from file ...
为了将字符串转换为数组，从字符串创建一个数组，让字符串根据IFS（内部字段分隔符）变量自然分割，该...
为了将字符串转换为数组，从字符串创建一个数组，让字符串根据IFS（内部字段分隔符）变量自然分割，该...
Read可以带有-a, -d, -e, -n, -p, -r, -t, 和 -s八个选项。 -a:将内容读入到数值中 echo -n "Input muliple values into an array:" read -a array echo "get ${#array[@]} values in array" -d:表示delimiter,即定界符,一般情况下是以IFS为参数的间隔,但是通过-d,我们可以定义一直读到...
echo -n "Input muliple values into an array:" read -a array echo "get ${#array[@]} values in array" -d:表示delimiter,即定界符,一般情况下是以IFS为参数的间隔,但是通过-d,我们可以定义一直读到出现执行的字符位置。例如read –d madfds value,读到有m的字符的时候就不在继续向后读,例如输入为...