A few weeks ago I made a ksh93 presentation to my colleagues. I told them
ksh93 has quite a lot of advanced cool features, one of which is the `>;'
redirection operator. They all liked it. Today someone came to me and asked
why his `>;' did not work. Then I tried:
$ echo ${.sh.version}
Version jM 93u 2011-02-08
$ cat file
foo
bar
$ grep foo file
foo
$ grep foo file >; file
$ echo $?
1
$ cat file
$
This really embarrassed me. I must have been using my own compiled newer
version of ksh93 when I was learning it months ago. But our Solaris 11 is
delivering 2011-02-08 93u version.
>From the RELEASE file I can see the `>;' op was added in 93t (08-10-31). I
found a 93t+ (10-03-05) version and it does not work either.
This is the 2nd time I have to tell my colleagues that "I'm sorry but stop
using XXX feature of ksh93, it's buggy". The last time is about the
multi-dimension
indexed
array<https://mailman.research.att.com/pipermail/ast-users/2012q1/003550.html>bug
which I reported and was fixed in 2012-05-04 update. Next time they
may
tell me "hey, stop introducing these cool features to us. it's just not
working". But I have to say "Cool!" when I see ksh93 is claiming to have
those features. But, it's simply not working.
Again, my point is that the high priority is to make ksh93 stable.
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