the environment variables config files NAME pam_env.conf, environment - the environment variables config...Definition of user service environment NAME environment.d - Definition of user service environment SYNOPSIS ~/.config/environmen...PAM module to set/unset environment variables NAME pam_env - PAM module to set/unset environment variables SYNOPSIS pam_env.s...Detect execution in a virtualized environment NAME systemd-detect-virt - Detect execution in a virtualized environment SYNOPSIS systemd...OpenSSL environment variables NAME openssl-env - OpenSSL environment variables DESCRIPTION The OpenSSL librar...Execution environment configuration NAME systemd.exec - Execution environment configuration SYNOPSIS service .s...Load variables specified by environment.d NAME systemd-environment-d-generator, 30-systemd-environment-d-generator - Load variabl...Load variables specified by environment.d NAME systemd-environment-d-generator, 30-systemd-environment-d-generator - Load variabl...systemd environment file generators NAME systemd.environment-generator - systemd environment file generators...get environment variables from /etc/environment NAME pam_getenv - get environment variables from /etc/env...change or add an environment variable NAME putenv - change or add an environment variable LIBRARY Standard C library (...debuginfod client environment variables, cache control files and etc. NAME debuginfod-client-config - debuginfod client...user environment NAME environ - user environment SYNOPSIS extern char ** environ ; DESCRIPTION The variabl...clear the environment NAME clearenv - clear the environment LIBRARY Standard C library ( libc , -lc ) SYNOPSIS...change or add an environment variable NAME setenv - change or add an environment variable LIBRARY Standard C library (...change or add an environment variable NAME setenv - change or add an environment variable LIBRARY Standard C library (...get an environment variable NAME getenv, secure_getenv - get an environment variable LIBRARY Standard C libr...get an environment variable NAME getenv, secure_getenv - get an environment variable LIBRARY Standard C libr...the environment variables config files NAME pam_env.conf, environment - the environment variables config...initial environment NAME /proc/pid/environ - initial environment DESCRIPTION /proc/ pid /environ This file co...