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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¶
2023-08-15 | Linux man-pages 6.7 |