Linux cli command proc_pid_environ

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command proc_pid_environ and provides detailed information about the command proc_pid_environ, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the proc_pid_environ.

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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 (‘�’), 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 '' '

'

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)

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