按字段读取字符串字段

我们假设字段分隔符是:

var='line: 1
line: 2
line3'
while IFS= read -d : -r field || [ -n "$field" ]; do
   echo "-$field-"
done <<< "$var"

输出：

-line-
- 1
line-
- 2
line3
-