maybe set -a 'd help ? if it can backwards export the vars On Thu, Nov 14, 2024, 3:01 PM Chet Ramey <chet.ra...@case.edu> wrote:
> On 11/13/24 4:48 PM, Yuri wrote: > > > The first 'source' command didn't set variables set or exported in the > > child.sh script, even though 'source' is executed in the current > script's > > context, > > The `source' command isn't "executed in the current script's context." It > is executed in a subshell, which can't affect its parent's variables. > > The bash man page says: > > "Each command in a multi-command pipeline, where pipes are created, is > executed in a subshell, which is a separate process." > > POSIX says: > > "Changes made to the subshell environment shall not affect the shell > environment. Command substitution, commands that are grouped with > parentheses, and asynchronous AND-OR lists shall be executed in a > subshell > environment. Additionally, each command of a multi-command pipeline is in > a subshell environment;" > > Some shells, including bash in some circumstances, will execute the last > pipeline element in the current shell, but no shell executes the first > element in the current shell context. > > -- > ``The lyf so short, the craft so long to lerne.'' - Chaucer > ``Ars longa, vita brevis'' - Hippocrates > Chet Ramey, UTech, CWRU c...@case.edu http://tiswww.cwru.edu/~chet/ >
