NAME

       /proc/pid/cmdline - command line

DESCRIPTION

       /proc/pid/cmdline
              This  read-only  file  holds  the complete command line for the process, unless the
              process is a zombie.  In the latter case, there is nothing in this file: that is, a
              read on this file will return 0 characters.

              For  processes  which  are still running, the command-line arguments appear in this
              file in the same layout as they do in process  memory:  If  the  process  is  well-
              behaved, it is a set of strings separated by null bytes ('\0'), with a further null
              byte after the last string.

              This is the common case, but processes have the  freedom  to  override  the  memory
              region  and break assumptions about the contents or format of the /proc/pid/cmdline
              file.

              If, after an execve(2), the process modifies its argv strings, those  changes  will
              show up here.  This is not the same thing as modifying the argv array.

              Furthermore,  a  process  may  change the memory location that this file refers via
              prctl(2) operations such as PR_SET_MM_ARG_START.

              Think of this file as the command line that the process wants you to see.

SEE ALSO

       proc(5)