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Operating Systems Solaris File with no name
# 1  
Old 11-23-2005
Question File with no name
Hi Guys,

I have a file in my home directory with no name. Now how did it get created and how can i know what type is it? and how can I open it?

I am using the following server
SunOS 5.8 Generic_108528-29 sun4u sparc SUNW,Ultra-250.

ls -lrt in the directory gives the following ouptut alongwith the other files

-rw-r--r-- 1 rathodr users 99431 Oct 31 11:45

I found it weird that there was no filename.

I tried doing some counting as follows
ls -lrt | wc -l
77
ls -1 | wc -l
76

Think, this file is displayed only in ls -lrt and not in ls -1

Has somebody come across something like this before.
Although this is not causing any probelms for me, I am very curious to know the reason.

Thanks,
Rahul.
# 2  
Old 11-23-2005
try use ls -i then u can rename it by inode #

# ls -ail
208978 drwxr-xr-x 1 2430 Aug 3 13:08

# find . -inum 208946 -exec mv {} newname \;
# 3  
Old 11-23-2005
I dont think you can have a file with no name. It should have something to point to even if it is a space.

Look at this demo.

Code:
touch \

Note, there is a whitespace after the \

ls -l gave me

Code:
-rw-rw-r--    1 xxxx xxxx        0 Nov 23 00:33

If you open it with vi, at the bottom of the vi screen, you can see

Code:
" " 0L, 0C

If you actually put some data, save and then do an ls -l.

Code:
-rw-rw-r--    1 xxxx xxxx       17 Nov 23 00:36

So there is some file whose name starts with a whitespace.
# 4  
Old 11-23-2005
If it is a file that is called ' ', i.e. a single space, you can delete it a couple of ways....

Code:
$ touch \
$ ls -la
total 4
-rw-rw-r--   1 foo    bar            0 Nov 24 11:26
drwxrwxr-x   2 foo    bar          512 Nov 24 11:26 .
drwxr-xr-x  10 foo    bar         1024 Nov 24 11:25 ..
$ rm ' '
$ ls -la
total 4
drwxrwxr-x   2 foo    bar          512 Nov 24 11:26 .
drwxr-xr-x  10 foo    bar         1024 Nov 24 11:25 ..
$ touch \
$ ls -la
total 4
-rw-rw-r--   1 foo    bar            0 Nov 24 11:26
drwxrwxr-x   2 foo    bar          512 Nov 24 11:26 .
drwxr-xr-x  10 foo    bar         1024 Nov 24 11:25 ..
$ ls -lia
total 4
       320 -rw-rw-r--   1 foo    bar            0 Nov 24 11:26
       319 drwxrwxr-x   2 foo    bar          512 Nov 24 11:26 .
         6 drwxr-xr-x  10 foo    bar         1024 Nov 24 11:25 ..
$ find . -inum 320 -exec rm {} \;
$ ls -la
total 4
drwxrwxr-x   2 foo   bar          512 Nov 24 11:26 .
drwxr-xr-x  10 foo   bar         1024 Nov 24 11:25 ..

Also, it might actually be some kind of control character... observe...
Code:
$ touch ^G
$ ls -la
total 4
-rw-rw-r--   1 foo    bar            0 Nov 24 11:27
drwxrwxr-x   2 foo    bar          512 Nov 24 11:27 .
drwxr-xr-x  10 foo    bar         1024 Nov 24 11:25 ..
$ ls -lba
total 4
-rw-rw-r--   1 foo    bar            0 Nov 24 11:27 \007
drwxrwxr-x   2 foo    bar          512 Nov 24 11:27 .
drwxr-xr-x  10 foo    bar         1024 Nov 24 11:25 ..

Cheers
ZB
# 5  
Old 11-27-2005
Thanks
Thanks all for your explanations.

Regards,
Rahul Rathod.
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