If Bash is started with the name rbash
, or the
--restricted option is supplied at invocation,
it is an environment more controlled than the standard shell.
The following are disallowed:
cd
builtin.
SHELL
or PATH
variables.
/usr/sbin/netstat
.
builtin command.
SHELLOPTS
from the shell environment at startup.
>
, >|
,
<>
, >&
, &>
,
and >>
redirection operators.
exec
builtin to replace the shell with another command.
-f
and
-d
options to the enable
builtin.
-p
option to the command
builtin.
set +r
or set +o restricted
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