[D-community-offtopic] finding the depth of the current shell

[EHD]

Kamaraju S Kusumanchi elucubrated on 2011-05-05:
>Inside a konsole running bash shell, If I do
>
>$       # initial konsole prompt
>$ bash  # spawn a new shell
>$ bash  # spawn third shell
>$ bash  # spawn fourth shell
>
>Now is there any command which tells that the current shell's "depth" is 4
>as in it has three "parent shells"?
>

There might be a more direct way, but pstree will show you something
like this:

$
$ bash
$ bash
$ bash
$ pstree

<snip>
      ├─urxvtd─┬─bash───bash───bash───bash───pstree
</snip>

In other words, look for the line containing "pstree" in the output of
the command pstree and count the number of bash, this will give you the
depth.

-- 
EHD