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
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