proc_pid_environ

proc_pid_environ(5) File Formats Manual proc_pid_environ(5)

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)

Linux man-pages 6.9.1 2024-06-15 proc_pid_environ(5)