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Size of file /dev/./null 2>&1

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Operating Systems AIX Size of file /dev/./null 2>&1
# 1  
Old 08-11-2015
Size of file /dev/./null 2>&1
Hello

Can I just remove/delete flile ?
Code:
 rw-r--r--    1 root     system   2385088512 Jun 30 21:25 /dev/null 2>&1

size of this flile is 2274.75 m and fill up my filesystem:
Code:
Filesystem    MB blocks      Used      Free %Used Mounted on
/dev/hd4        2560.00   2558.59      1.41  100% /

# 2  
Old 08-11-2015
if you go in /dev and type this command:
Code:
 ls -l n*

what do you get?
# 3  
Old 08-11-2015
this:
Code:
crw-rw-rw-    1 root     system        2,  2 Aug 11 15:43 null
-rw-r--r--    1 root     system   2385088512 Jun 30 21:25 null 2>&1
crw-rw-rw-    1 root     system       18, 32 Aug 08 2012  nuls
crw-r--r-T    1 root     system        3,  0 Aug 08 2012  nvram

# 4  
Old 08-11-2015
So yes you can remove but be aware how... maybe something like
Code:
rm null*1

but in any case not
Code:
rm  null 2>&1

This User Gave Thanks to vbe For This Post:
primo102
# 5  
Old 08-11-2015
Thanks vbe
It works

ps.
I could remove "null 2>&1" becouse in /dev exist another file "null" !?
# 6  
Old 08-11-2015
Its almost that... what do you think your shell would understand? for sure as you have a space I dont know how it could have happened, looks to me like someone is testing your capabilities...
I believe if I typed
Code:
touch null 2&>1

I would have ended with2-3 files : null, 2 and maybe 1
So I doubt it being a typo but still could be a very unlucky case
ADDENDUM:
In my aix in /dev I have
Code:
n12:/home/vbe $ ll /dev/n*
brw-------    1 root     system       33, 18 Aug 10 11:45 /dev/nsmb0
crw-rw-rw-    1 root     system        2,  2 Aug 11 16:00 /dev/null
crw-rw-rw-    1 root     system       12, 24 Jun 24 15:15 /dev/nuls
crw-r--r-T    1 root     system        3,  0 Jun 24 15:15 /dev/nvram

As you can see, these files are not ordinary files the listing starts by b or c meaning block a char devices... In your output you see:
Code:
crw-rw-rw-    1 root     system        2,  2 Aug 11 15:43 null
-rw-r--r--    1 root     system   2385088512 Jun 30 21:25 null 2>&1
crw-rw-rw-    1 root     system       18, 32 Aug 08 2012  nuls
crw-r--r-T    1 root     system        3,  0 Aug 08 2012  nvram

where
Code:
-rw-r--r--    1 root     system   2385088512 Jun 30 21:25 null 2>&1

is defilinely a standard file only its name makes it more tricky to delete...
Last edited by vbe; 08-11-2015 at 11:17 AM..
# 7  
Old 08-11-2015
As VBE already stated, i'd guess as well to be something like lots of:
Code:
echo "string" >> '/dev/null 2>&1'

instead of:
Code:
echo "string" >> /dev/null 2&>1

And, obviously, executed as root.

My understanding issue is a different one...
Wouldnt this redirect the regular output to /dev/null, and error message to stdout, which is quite 'ambigious' (missing better word) and could be ignored, since stderr usualy passes general redirection anyway.

Anyway, hope this helps
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