is that if fifo or if nonormal file .. .. is that another story from history .. ? that it doesnt accept them ..
On Fri, Feb 14, 2025, 1:36 PM Greg Wooledge <g...@wooledge.org> wrote: > On Fri, Feb 14, 2025 at 05:19:48 -0600, MacBeth wrote: > > On Fri, Feb 14, 2025 at 4:31 AM MacBeth <macbeth.112...@gmail.com> > wrote: > > > # fails: > > > $ history -r <(echo 'echo bad') > > > > Unless the reason is due to the file seek issue as described here...? > > https://unix.stackexchange.com/a/164109 > > hobbit:~$ echo ': testing file y' > y > hobbit:~$ strace bash -c 'history -r y' > [...] > openat(AT_FDCWD, "y", O_RDONLY) = 3 > newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=17, ...}, AT_EMPTY_PATH) > = 0 > read(3, ": testing file y\n", 17) = 17 > close(3) = 0 > [...] > > hobbit:~$ strace bash -c 'history -r <(echo ": testing procsub")' > [...] > openat(AT_FDCWD, "/dev/fd/63", O_RDONLY) = 3 > newfstatat(3, "", {st_mode=S_IFIFO|0600, st_size=0, ...}, AT_EMPTY_PATH) = > 0 > close(3) = 0 > close(63) = 0 > [...] > > Looks like it never even tries to read the bytes from the procsub. It > checks the file's type, sees S_IFIFO, and silently ignores it. > > You'd think it would at least give a warning. > >
