environ(7) Miscellaneous Information Manual environ(7) environ - extern char **environ; environ "". NULL. execve(2) . fork(2) . environ "name=value". "=". . ('\0') . export sh(1) setenv csh(1). /etc/environment pam_env(8) ( pam(8)). /etc/profile . NAME=value command command. command. exec(3). C getenv(3) putenv(3) setenv(3) unsetenv(3). . . ENVIRONMENT . USER ( BSD). NOTES . LOGNAME ( System-V). NOTES . HOME . NOTES . LANG LC_ALL LC_COLLATE LC_CTYPE LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME ( locale(7) LC_*). PATH sh(1) ( ). (:). . ( ) . POSIX ( .) . PATH CDPATH MANPATH man(1) . PWD ( . ..). SHELL . NOTES . TERM . PAGER . sh -c . PAGER less(1) more(1). EDITOR/VISUAL . command_string sh -c . . : o LANG LANGUAGE NLSPATH LOCPATH LC_ALL LC_MESSAGES catopen(3) gettext(3) locale(7). o TMPDIR tempnam(3) sort(1) . o LD_LIBRARY_PATH LD_PRELOAD LD_* / . ld.so(8). o POSIXLY_CORRECT POSIX. o malloc(3) MALLOC_*. o HOSTALIASES gethostbyname(3). o TZ TZDIR tzset(3) ctime(3) localtime(3) mktime(3) strftime(3). tzselect(8). o TERMCAP ( ). o COLUMNS LINES . o PRINTER LPDEST . lpr(1). environ . ( ) environ _GNU_SOURCE ( feature_test_macros(7)). prctl(2) PR_SET_MM_ENV_START PR_SET_MM_ENV_END . HOME LOGNAME SHELL USER login(1) ( passwd(5)). ( su(1) LOGNAME USER su(1).) . IFS LD_LIBRARY_PATH. . make autoconf . CC C ( MAKE AR AS FC LD LEX RM YACC ). . MORE LESS. . bash(1) csh(1) env(1) login(1) printenv(1) sh(1) su(1) tcsh(1) execve(2) clearenv(3) exec(3) getenv(3) putenv(3) setenv(3) unsetenv(3) locale(7) ld.so(8) pam_env(8) 3 . . : . 6.18 8 2026 environ(7)