Yes, "mycmd myopts" is an expression that evaluates to the command string. It could as well have been a single variable, a literal or a more complicated expression.
Yes, it's synchronous. Alas, OOREXX doesn't have the ANSI address syntax and Regina doesn't have multitasking. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of Paul Gilmartin [0000000433f07816-dmarc-requ...@listserv.ua.edu] Sent: Wednesday, March 9, 2022 11:47 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Rexx copy to OMVS On Wed, 9 Mar 2022 16:26:36 +0000, Seymour J Metz wrote: >address SYSTEM mycmd myopts WITH INPUT foo OUTPUT FIFO >address SYSTEM mycmd myopts WITH INPUT foo OUTPUT STEM bar. >address SYSTEM mycmd myopts WITH INPUT foo OUTPUT STEM bar. ERROR APPEND baz > Each of those is synchronous, not returning control to the Rexx scriipt until "mycmd myopts" terminates, not suitable for a long-running command. (Isn't myopts merely part of the command string?) >Why won't popen let you redirect both stdin and stdout? Or all three? > Desirable, but entailing synchronization problems unless Rexx were also to provide the lacking SYSCAL SELECT: <https://secure-web.cisco.com/1DRefECC2oZAuUy07BTqqULOi5BWpTRjE1YzaoJUi5iQr-m4qNgCXBzb6ahZOYtX9F59cqxdALciiFBYa7quyrppYYEeL3up7VXSvvnQfjq_o8s8xLHENi9HZnmhX1rBuL8EUQY7Wk6x0IZX3d5-764g4NmxyYmdFBaE1UmQxHkvnCC4cc3zt6gjxAeUe7SSNyu0OJdnvqSwIcsV48N1MjLRTFCleqf6baummYarH56QP8WhHTpq-xlPhKORcxW8Ikl_E_NuCYecqqifnA_64r67FxAdVteXrUX9EQSS5weZocA_ksSLYSommj6HNNYZQ-TJEv3yKJKERWooOVZxipkRCJ9r73WUrDLYb790Vac2LhmyURyssBevH43YclAsXuKFXEzaVOHSKaZEUIIDJi3WWmZ5E5IlCx5zL_VYgMa7XVVjVbJ0XpJWtebtYkc6B/https%3A%2F%2Fpubs.opengroup.org%2Fonlinepubs%2F9699919799%2Ffunctions%2Fpselect.html%23tag_16_400> >________________________________________ >From: Paul Gilmartin >Sent: Wednesday, March 9, 2022 10:47 AM > ... >OTOH, I know of no other Rexx with the facility of z/OS STREAM POPEN: -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
