Significance of " /proc/<pid>/root"

[Navkamal Rakra]

On 09/16/2013 12:33 AM, Arun M Kumar wrote:
> What is the significance of the directory named root inside /proc/<pid> ?
>
> ex:
> ----------------------------------------------------------------------------------
> arunkumar at arun-ThinkPad-Edge-E530:/proc/2543/root$ ls
>
> bin   cdrom  etc   initrd.img      lib         media  opt   root 
> sbin     srv  tmp  var      vmlinuz.old
> boot  dev    home  initrd.img.old  lost+found  mnt    proc  run selinux  
> sys  usr  vmlinuz
> ----------------------------------------------------------------------------------
>
>
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It keeps record of all data (system level) , resources and parameters
for that process . You can get more idea here :
https://www.kernel.org/doc/Documentation/filesystems/proc.txt