If Bash is started with the name rbash
, or the
`--restricted'
option is supplied at invocation, the shell becomes restricted.
A restricted shell is used to
set up an environment more controlled than the standard shell.
A restricted shell behaves identically to bash
with the exception that the following are disallowed:
cd
builtin.
SHELL
or PATH
variables.
.
builtin command.
SHELLOPTS
from the shell environment at startup.
exec
builtin to replace the shell with another command.
enable
builtin.
command
builtin.
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