UNIX for Advanced & Expert Users

Hi,
when I execute some simple commands on my solaris system, I am getting the following warning message:

Could anybody tell me what could be the reason

Ex:- If I give the command,
which ls
Warning: cannot determine current directory
/usr/bin/ls

Thanks in advance

please post the output from "df -h" or "df -k" maybe the /var filesystem is full....? and what is the output of "pwd"?

The output of df -k is:-

Filesystem kbytes used avail capacity Mounted on
/dev/md/dsk/d0 10332460 1607447 8621689 16% /
/proc 0 0 0 0% /proc
fd 0 0 0 0% /dev/fd
mnttab 0 0 0 0% /etc/mnttab
swap 11718104 8 11718096 1% /var/run
/dev/md/dsk/d40 5170926 1516632 3602585 30% /crash
/dev/md/dsk/d20 5170926 2650269 2468948 52% /tmp
/dev/md/dsk/d30 3080879 114518 2904744 4% /seos
/dev/md/dsk/d50 25817063 650972 24907921 3% /home
/dev/md/kplusintfsds/dsk/d0
10317788 811904 9402707 8% /home/applications
/dev/md/kplusintfsds/dsk/d10
25800247 10126982 15415263 40% /files_local
/dev/md/kplusintfsds/dsk/d20
15115195 1471029 13493015 10% /kreditnet
/dev/md/kplusintfsds/dsk/d30
10317788 134825 10079786 2% /kpatches
/dev/md/kplusintfsds/dsk/d40
25195256 7123432 17819872 29% /dump
/dev/md/kplusintfsds/dsk/d50
25195256 3878854 21064450 16% /proddump

If i give, man ls command,it is displaying error message as
getcwd: Permission denied

If i run the commands from the (/) file system, they are working fine
whereas If i run commands from my directory it is giving the above error messages.

Thanks for ur response

your filesystem is fine.. seems like some rights problem occure....

There is one scenario where this can happen.
You are in a directory. And somebody else might have deleted the directory without your knowledge.

Change to a different directory and try.

yeah, you are right... or a filesystem ist unmountet without your knowledge...

My directory still exists. If I go to a different directory it is working.
How to check whether the file system is unmounted or
mounted with wrong permissions.

Thanks