linux - How to parse /proc/pid/cmdline -

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I'm trying to divide the CMDline of a process on Linux but it seems that I do not trust it Could '\ 0' characters Do you know why sometimes the '\ 0' character is used as a separator and sometimes it is a regular place?

Do you know the executable name and other ways to achieve its path? I am trying to get this information with 'ps' but it always gives the full command line and the executable name is cut.

Thank you.

use string 

  $ cat / Proc / self / cmdline | String -1 cat / proc / self / cmdline

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