in reply to Re: how can i send data to /dev/null ?
in thread how can i send data to /dev/null ?

/dev/null is a device, not a file. DO NOT try to open it for writing to as a file, especially if you're root. You don't want to overwrite the device link with a flat file.
  • Comment on Re^2: how can i send data to /dev/null ?

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Re^3: how can i send data to /dev/null ?
by tirwhan (Abbot) on Dec 12, 2005 at 16:57 UTC
    Hmm? 
    sh-2.05b$ stat /dev/null
  File: `/dev/null'
  Size: 0               Blocks: 0          IO Block: 4096   character 
+special file
Device: 303h/771d       Inode: 246087      Links: 1     Device type: 1
+,3
Access: (0666/crw-rw-rw-)  Uid: (    0/    root)   Gid: (    0/    roo
+t)
Access: 2005-06-18 10:16:06.000000000 +0200
Modify: 2005-06-18 10:16:06.000000000 +0200
Change: 2005-06-18 10:16:06.000000000 +0200
sh-2.05b$ whoami
root
sh-2.05b$ perl -e'open($null,">","/dev/null")or die "foo";print $null 
+"something" or die "bar"; close $null'
sh-2.05b$ stat /dev/null
  File: `/dev/null'
  Size: 0               Blocks: 0          IO Block: 4096   character 
+special file
Device: 303h/771d       Inode: 246087      Links: 1     Device type: 1
+,3
Access: (0666/crw-rw-rw-)  Uid: (    0/    root)   Gid: (    0/    roo
+t)
Access: 2005-06-18 10:16:06.000000000 +0200
Modify: 2005-06-18 10:16:06.000000000 +0200
Change: 2005-06-18 10:16:06.000000000 +0200

    [download]

    This is on Linux. Are there *NIXes where this behaves differently?


    Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. -- Brian W. Kernighan
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