The emptyenv program
emptyenv empties the current environment, or cleans it up; then executes a program.
Interface
emptyenv [ -p ] [ -l ] prog...
emptyenv -c prog...
emptyenv [ -o ] [ -P ] prog...
By default, emptyenv unsets all environment variables, then execs into prog with its arguments. Options control which environment variables are unset.
Options
- -p : keep the PATH environment variable.
- -l : keep the LD_LIBRARY_PATH environment variable.
- -c : clean up. Do not empty the environment. Instead, remove every variable used internally by the execline programs, to avoid any interference with or information leakage to external programs.
- -o : pop environment variables starting with ELGETOPT_. You might want to do this before executing a final program from a script that uses elgetopt.
- -P : pop environment variables starting with #, 0 to 9, and EXECLINE_. You might want to do this before executing a final program from a script launched by execlineb.