Shell job control actually originated in Bill Joy's csh as part of BSD (as did vi). It was adopted by the Korn shell, then codified into the POSIX shell. http

Shell job control actually originated in Bill Joy's csh as part of BSD (as did vi). It was adopted by the Korn shell, then codified into the POSIX shell. https://pubs.opengroup.org/onlinepubs/9699919799/utilities/jobs.html https://pubs.opengroup.org/onlinepubs/9699919799/utilities/j...