`$SHLVL` – Zsh Nesting Level

$SHLVL contains the level of nested Z shells.

Examples

Print the nesting level of the Zsh process

`1`	`echo $(echo $(echo $SHLVL))`

Output:

BashSupport Pro 是一款支持 shlvl** 的 **Zsh 集成开发环境 - 立即试用！