Hi,

I tried to create a new folder inside a folder A but was given an error "Permission denied". Any idea?

First check the permissions of the directory by specifying "ls -ld <DIRNAME>".
Can you post the results here? You can't create a file inside a directory if you don't have write access.

I have the write permission but somehow i could not create a directory though. Is it because i'm trying to create a directory within a shell script? I mean i use the command mkdir within my shell script.

Can you cut-and-paste the command and the error you're getting? Also, can you cut-and-paste the permissions?

check:
- "ls -l" output to see perms.
- "id" output to see your user id and groups.
- depending on your unix/linux version, check if there exists any ACL for thar directory.
- "df -k ." output, to see if you have enough free inodes and free space.
Regards.