Hi, The "source" builtin does not work in conjunction with process substitution:
$ bash -ec 'cat <(echo echo 1)'
echo 1
$ bash -ec '. <(echo echo 1)'
$ strace -e trace=file,desc bash -ec '. <(echo echo 1)'
[...]
stat64("/dev/fd/63", {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
open("/dev/fd/63", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFIFO|0600, st_size=0, ...}) = 0
read(3, "", 0) = 0
close(3) = 0
Original bug report:
https://bugzilla.altlinux.org/show_bug.cgi?id=7475
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