oracular (5) proc_pid_environ.5.gz

NAME

       /proc/pid/environ - initial environment

DESCRIPTION

       /proc/pid/environ
              This  file  contains the initial environment that was set when the currently executing program was
              started via execve(2).  The entries are separated by null bytes ('\0'), and there may  be  a  null
              byte at the end.  Thus, to print out the environment of process 1, you would do:

                  $ cat /proc/1/environ | tr '\000' '\n'

              If,  after  an execve(2), the process modifies its environment (e.g., by calling functions such as
              putenv(3) or modifying the environ(7)  variable  directly),  this  file  will  not  reflect  those
              changes.

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

              Permission to access this file is governed by a ptrace access mode PTRACE_MODE_READ_FSCREDS check;
              see ptrace(2).

SEE ALSO

       proc(5)