These might be well known, but they are annoying things I've encountered
on my own without looking for buglists.

Long time grief for me "cd ../.dotdir" doesn't work:

$ cd ~/tmp
$ ls -ld ../.trn
drwx--x--x 4 eli users 17 May 28 16:13 ../.trn
$ cd ../.trn
/usr/local/bin/ksh93: cd: /net/u/3/e/eli/trn: [No such file or directory]
$ cd ..; cd .trn
$ pwd
/net/u/3/e/eli/.trn
$

That example is "Version AJM 93u+ 2012-08-01" running at Panix, which is
a Netbsd 9.1 system. I've duplicated it on Linux (Ubuntu) with the same
ksh93 version.

Today:

$ echo jjj > /tmp/in
$ sed -e 's/jjj/'$(date +%s)/ < /tmp/in
1623871399
$ echo jjj | sed -e 's/jjj/'$(date +%s)/
sed: sed: cannot execute [Exec format error]
$

Tested and seen with "Version AJM 93u+ 2012-08-01" on Panix's Netbsd and
Linux (Ubuntu 18.04.5 LTS). I tried with explicit paths to the programs
(Netbsd: [/bin/echo, /usr/bin/sed/, /bin/date], Linux: [/bin/echo,
/bin/sed/, /bin/date]) with same results.

Elijah
------
uses "jjj" more than "foo" for QWERTY reasons

On 16.06.2021 21:24, Eli the Bearded wrote:
> These might be well known, but they are annoying things I've encountered
> on my own without looking for buglists.
>
> Long time grief for me "cd ../.dotdir" doesn't work:
>
> $ cd ~/tmp
> $ ls -ld ../.trn
> drwx--x--x 4 eli users 17 May 28 16:13 ../.trn
> $ cd ../.trn
> /usr/local/bin/ksh93: cd: /net/u/3/e/eli/trn: [No such file or directory]
> $ cd ..; cd .trn
> $ pwd
> /net/u/3/e/eli/.trn
> $
>
> That example is "Version AJM 93u+ 2012-08-01" running at Panix, which is
> a Netbsd 9.1 system. I've duplicated it on Linux (Ubuntu) with the same
> ksh93 version.
>
> Today:
>
> $ echo jjj > /tmp/in
> $ sed -e 's/jjj/'$(date +%s)/ < /tmp/in
> 1623871399
> $ echo jjj | sed -e 's/jjj/'$(date +%s)/
> sed: sed: cannot execute [Exec format error]
> $
>
> Tested and seen with "Version AJM 93u+ 2012-08-01" on Panix's Netbsd and
> Linux (Ubuntu 18.04.5 LTS). I tried with explicit paths to the programs
> (Netbsd: [/bin/echo, /usr/bin/sed/, /bin/date], Linux: [/bin/echo,
> /bin/sed/, /bin/date]) with same results.
>
> Elijah
> ------
> uses "jjj" more than "foo" for QWERTY reasons
>

Are you sure that your second test case is a shell issue (and not an OS
and/or configuration issue)? It works for me at least...

$ echo jjj > /tmp/in
$ sed -e 's/jjj/'$(date +%s)/ < /tmp/in
1623885000
$ echo jjj | sed -e 's/jjj/'$(date +%s)/
1623885009
$ Version AJM 93u+ 2012-08-01

But I can reproduce the error with your first test case.
Using the recently posted ksh93u+m version that error seems to be fixed
there. - Is it an option for you to switch the shell version?

Janis

In article <sae1e2$3l3$1@news-1.m-online.net>,
Janis Papanagnou <janis_papanagnou@hotmail.com> wrote:
....
>Are you sure that your second test case is a shell issue (and not an OS
>and/or configuration issue)? It works for me at least...

I get the same result as Eli does, testing with ksh93 on a Ubuntu system.

Also, it does the right thing under bash.

So, definitely a shell issue.

--
A pervert, a racist, and a con man walk into a bar...

Bartender says, "What will you have, Donald!"

In comp.unix.shell, Janis Papanagnou <janis_papanagnou@hotmail.com> wrote:
> On 16.06.2021 21:24, Eli the Bearded wrote:
> > $ echo jjj | sed -e 's/jjj/'$(date +%s)/
> > sed: sed: cannot execute [Exec format error]
> > $
> >
> > Tested and seen with "Version AJM 93u+ 2012-08-01" on Panix's Netbsd and
> > Linux (Ubuntu 18.04.5 LTS).
> Are you sure that your second test case is a shell issue (and not an OS
> and/or configuration issue)? It works for me at least...

Probably a shell issue when the same problem happens on Linux and
Netbsd. It's not the same binary or library, and possibly a different
compiler (don't know if clang or not on Netbsd).

But, including yours and Kenny McCormack's follow-up here, I've seen
three more test results. Two worked, one didn't. So that's 4 of 6
failed on the 'echo | sed $()' command.

> But I can reproduce the error with your first test case.
> Using the recently posted ksh93u+m version that error seems to be fixed
> there. - Is it an option for you to switch the shell version?

I log in to a lot of machines, so having the distribution version(s)
work is my preference. Also, since login shells are special (see chsh
and /etc/shells), replacing them is more work. I can't just drop a
binary in ~/bin/ and be done with it.

Elijah
------
not a fan of the xdg user-dirs "reform"