On Mon, Aug 29, 2011 at 7:24 PM, Roger <rogerx....@gmail.com> wrote: > > Within GNU Screen session & VTE: > > roger@localhost2 ~ $ bash > > 0 ;-) > roger@localhost2 ~ $ ps -ax |tail > Warning: bad ps syntax, perhaps a bogus '-'? See http://procps.sf.net/faq.html > 30840 pts/6 Ss 0:00 /bin/bash - /home/roger/bin/bashnoprofile_ionice.sh > 30842 pts/5 S+ 0:00 bash --noprofile > 30844 pts/7 Ss+ 0:00 su - > 30845 pts/6 S 0:00 bash --noprofile > 30848 pts/8 Ss 0:00 /bin/bash - /home/roger/bin/bashnoprofile_ionice.sh > 30849 pts/8 S+ 0:00 bash --noprofile > 30920 ? S 0:00 [kworker/1:2] > 30981 pts/6 S 0:00 bash <-- New bash shell within a bash shell > 30995 pts/6 R+ 0:00 ps -ax > 30996 pts/6 S+ 0:00 tail > > 0 ;-) > roger@localhost2 ~ $ echo $BASH_SUBSHELL > 0 > > 0 ;-) > roger@localhost2 ~ $ exit > exit > > 0 ;-) > roger@localhost2 ~ $ > > -- > Roger > http://rogerx.freeshell.org/ > >
I think you want $SHLVL $ echo $SHLVL $BASH_SUBSHELL 1 0 $ bash $ echo $SHLVL $BASH_SUBSHELL 2 0 $ (echo $SHLVL $BASH_SUBSHELL) 2 1 $ ( (echo $SHLVL $BASH_SUBSHELL) ) 2 2 $ echo $SHLVL $(echo "$BASH_SUBSHELL") 2 1 $ echo foo | while read -r bar; do echo $SHLVL $BASH_SUBSHELL; done 2 1 $ while read -r bar; do echo $SHLVL $BASH_SUBSHELL; done < <(echo foo) 2 0 -- Visit serverfault.com to get your system administration questions answered.
