This page provides all possible meanings and translations of the word unset
WiktionaryRate this definition:(0.00 / 0 votes)
to make not set
Not set; not fixed or appointed.
Webster DictionaryRate this definition:(0.00 / 0 votes)
not set; not fixed or appointed
FreebaseRate this definition:(0.00 / 0 votes)
unset is a builtin Unix shell command implemented by both the Bourne shell family of shells and the C shell family of shells. It unsets a shell variable, removing it from memory and the shell's exported environment. It is implemented as a shell builtin, because it directly manipulates the internals of the shell.
Read-only shell variables cannot be unset. If one tries to unset a read-only variable, the unset command will print an error message and return a non-zero exit code.