On 2022-06-14, Michael Orlitzky <michael@xxxxxxxxxxxx> wrote: > On Mon, 2022-06-13 at 15:39 -0700, Paul Eggert wrote: >> >> I've wanted something like this for *years* (I assigned a simpler >> version to my undergraduates but of course it was too much to expect >> them to implement it) and I hope some sort of parallelization like this >> can get into production with Bash at some point (or some other shell if >> Bash can't use this idea). >> > > It looks like PaSh itself was designed and built well. The authors use > multiple test suites and PaSh is comparable to other shells in > correctness. Ultimately you wouldn't want a runtime dependency on > python in your /bin/sh, but as a first step... can PaSh run ./configure > already? The answer seems to be no. For fun, I just tried pash-0.8 on a configure script and the shell itself crashes immediately. It was very difficult to install so I might not be smart enough to use it and botched the installation. But pash appears to not understand shell variables in redirections: % sh -c 'fd=1; echo hello >&$fd' hello % pa.sh -c 'fd=1; echo hello >&$fd' [multiple pages of python line noise] AttributeError: 'LP_union_node' object has no attribute 'narg' It crashes even if the command with such a redirection is not executed: % pa.sh -c 'fd=1; if false; then echo hello >&$fd; fi' [similar crash] Cheers, Nick
