On Dec 30, 2016 11:20 PM, "Peter & Kelly Passchier" < peterke...@passchier.net> wrote:
Thanks Dennis and Grisha! I understand. I had thought that every line that is piped into bash is it's own shell alignment, but I understand it's more like sourcing, so these would be more or less equivalent, right? r=23; echo $r; echo -e 'r=bc\necho $r' >r; source r r=23; echo $r; echo -e 'r=bc\necho $r' |bash Thanks again, Peter Not really. You're sourcing into the current shell versus piping into a subshell. The line you pipe in is in the current shell until it's received by the subshell. As a result it's subject to all the evaluation that can be performed in the current shell. Once the child shell receives it the outer quotes will already have been stripped and if there's additional evaluation it will then be performed.
