Left side of pipe is the subshell?

Question

Edit:

My comment below regarding sed \'s@^@ @\' <(f1) is incorrect While $BASH_SUBSHELL indicates that we are in the same level as

Answer 1

Here is a much concise example if someone cares :

cd / && cd /tmp/ | pwd  ; pwd
/
/

Or :

cd / && cd /tmp/ | cd /var/  ; pwd
/

Yes this page says it all

http://linux.die.net/man/1/bash# Each command in a pipeline is executed as a separate process (i.e., in a subshell).