`$IFS` – Characters to separate fields

The shell uses each character of the IFS variable as a separator during word splitting.

Examples

IFS to split a word

1
2
3

var1="a+b+c"
IFS=+
echo $var1

BashSupport Pro 是一款 Bash 和 POSIX 集成开发环境，支持 $IFS - 立即试用！