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Did you mean: setenv, fesetenv, pmap_unset, getenv?

change or add an environment variable

name , const char * value , int overwrite ); int unsetenv(const char * name ); Feature Test Macro Requirements ... glibc (see feature_test_macros (7)): setenv (), unsetenv (): _POS…

setenv(3)

change or add an environment variable

name , const char * value , int overwrite ); int unsetenv(const char * name ); Feature Test Macro Requirements ... glibc (see feature_test_macros (7)): setenv (), unsetenv (): _POS…

getenv(3)

get an environment variable

getenv (), putenv (3), setenv (3), or unsetenv (3). The "secure execution" mode of secure_getenv ... getauxval (3), putenv (3), setenv (3), unsetenv (3), capabilities (7), environ

secure_getenv(3)

get an environment variable

getenv (), putenv (3), setenv (3), or unsetenv (3). The "secure execution" mode of secure_getenv ... getauxval (3), putenv (3), setenv (3), unsetenv (3), capabilities (7), environ

environ(7)

user environment

getenv (3), putenv (3), setenv (3), and unsetenv (3). What follows is a list ... getenv (3), putenv (3), setenv (3), unsetenv (3), locale (7), ld.so

putenv(3)

change or add an environment variable

ALSO clearenv (3), getenv (3), setenv (3), unsetenv (3), environ

clearenv(3)

clear the environment

ALSO getenv (3), putenv (3), setenv (3), unsetenv (3), environ

pthreads(7)

POSIX threads

passed a non-NULL argument ttyname() unsetenv() wcrtomb() if its final argument is NULL wcsrtombs

fesetenv(3)
floating-point rounding and exception handling
```
NAME feclearexcept, fegetexceptflag
```
pmap_unset(3)
library routines for remote procedure calls
```
NAME rpc - library
```

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