Z:gnu-bash--813b9b-Unset values and attributes of/en

Unset values and attributes of shell variables and functions. For each NAME, remove the corresponding variable or function. Options: -f	treat each NAME as a shell function -v	treat each NAME as a shell variable -n	treat each NAME as a name reference and unset the variable itself rather than the variable it references Without options, unset first tries to unset a variable, and if that fails, tries to unset a function. Some variables cannot be unset; also see `readonly'. Exit Status: Returns success unless an invalid option is given or a NAME is read-only.