topic Re: HP-UX 11.31 - Unable to change directories in /cots/oracle and /var/opt/ in Operating System - HP-UX

HP-UX 11.31 -- Unable to change directories in /cots/oracle and /var/opt/

NavyYard — Tue, 24 Sep 2013 00:34:10 GMT

Hi folks!

I have a blade server running hp-ux 11.31.

As root or oracle, When I try to cd to /cots/oracle it works, but if I do: cd /cots; and then cd oracle, it says "oracle" file not found. If I do "cd /cots/oracle", it works.

I encounter the same problem in other directories, such as /opt. It works all the time when I have fully qualified path for the directory.

Changing directory does not work if I cd down one directory at a time.

/cots directory is mounted on the lun and /opt is on local internal disk.

I do not see any errors in syslog.log.

Any advice will be highly appreciated.

Thanks

Re: HP-UX 11.31 -- Unable to change directories in /cots/oracle and /var/opt/

Ajin_1 — Tue, 24 Sep 2013 02:25:08 GMT

if you have already configured sudo then add one more line in /usr/local/etc/sudoers

Cmnd_Alias CD = /usr/bin/cd

Re: HP-UX 11.31 - Unable to change directories in /cots/oracle and /var/opt/

Dennis Handly — Tue, 24 Sep 2013 04:22:32 GMT

>if I do: cd /cots and then cd oracle, it says "oracle" file not found.

What are the permissions of the two directories?

ll -d /cots /cots/oracle

Have you exported CDFILTER and to what value?

Re: HP-UX 11.31 -- Unable to change directories in /cots/oracle and /var/opt/

NavyYard — Tue, 24 Sep 2013 12:11:37 GMT

Hi!
On /cots permissions are RWXRWXR-X and /app/oracle permissions are RWXRWXRWX

Re: HP-UX 11.31 - Unable to change directories in /cots/oracle and /var/opt/

Patrick Wallek — Tue, 24 Sep 2013 16:12:56 GMT

Do you have some strange alias for the 'cd' command?

What do the following commands show:

# alias cd

# whence -v cd

# ls -l /usr/bin/cd

# what /usr/bin/cd

What happens if you do the following:

# /usr/bin/cd /cots

# /usr/bin/cd oracle

Re: HP-UX 11.31 - Unable to change directories in /cots/oracle and /var/opt/

Dennis Handly — Tue, 24 Sep 2013 18:11:53 GMT

>On /cots permissions are RWXRWXR-X and /app/oracle permissions are RWXRWXRWX

Why is one /cots and the other /app?

If these are mount points, what is the permission when the filesystem is unmounted?

>What happens if you do the following:

># /usr/bin/cd /cots

It will do no good to use /usr/bin/cd since that won't change the directory for the shell. You must use the shell builtin.

The proper command for detecting obscuring aliases and functions is that whence you mentioned.

Or you could just quote it to prevent aliasing: \cd /cots; \cd ./oracle

Re: HP-UX 11.31 - Unable to change directories in /cots/oracle and /var/opt/

Matti_Kurkela — Tue, 24 Sep 2013 18:34:37 GMT

The cd(1) man page says:

----------------

cd exists only as a shell built-in command because a new process is created whenever a command is executed, making cd useless if written and processed as a normal system command. Moreover, different shells provide different implementations of cd as a built-in utility. Features of cd as described here may not be supported by all the shells. Refer to individual shell manual entries for differences.

----------------

Emphasis mine.

Yes, HP-UX seems to include /usr/bin/cd... but at least on a 11.23 system I checked, it is just a shell script.

Yet I cannot immediately see any benefit with such a script: if /usr/bin/cd is executed, a new shell process will be started to run the script, and the script will run the shell built-in cd command to change its own current working directory. Then the script will end and the process will die, and the information about the changed working directory will vanish in a puff of logic along with the process. The working directory of the parent process will be unaffected.

I guess there might be some special case in which /usr/bin/cd is actually useful. Restricted shells, perhaps?

Re: HP-UX 11.31 - Unable to change directories in /cots/oracle and /var/opt/

Dennis Handly — Tue, 24 Sep 2013 18:43:21 GMT

>Emphasis mine.

Didn't I just say it wouldn't work. ;-)

>it is just a shell script.

Yes, same as ulimit. It's there but can't change anything, just display.

>I guess there might be some special case in which /usr/bin/cd is actually useful.

The POSIX standard requires it to be there.

Re: HP-UX 11.31 - Unable to change directories in /cots/oracle and /var/opt/

madhucertify — Tue, 01 Oct 2013 15:21:45 GMT

Hi Matti/Dennis

I am not sure,but a guess could be problem with shell.

is it right to change the shell for root and oracle user ?

Navyyard --> Do this problem common for all user registered in the server and to all directories ?

--Madhu

Re: HP-UX 11.31 - Unable to change directories in /cots/oracle and /var/opt/

Dennis Handly — Tue, 01 Oct 2013 18:45:51 GMT

>a guess could be problem with shell.

I doubt it. But if you use tusc, you could see what system call failed.

Re: HP-UX 11.31 - Unable to change directories in /cots/oracle and /var/opt/

NavyYard — Wed, 09 Oct 2013 14:18:05 GMT

Hi Madhu!
Problem is only with oracle account and it is possible that their $HOME/.profile file has some bad commands in it causing the mess. Thanks