Bash Reference Manual for version 2.05.
6.10 The Restricted Shell
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:
-
Changing directories with the
cd
builtin.
-
Setting or unsetting the values of the
SHELL
, PATH
,
ENV
, or BASH_ENV
variables.
-
Specifying command names containing slashes.
-
Specifying a filename containing a slash as an argument to the
.
builtin command.
-
Specifying a filename containing a slash as an argument to the `-p'
option to the
hash
builtin command.
-
Importing function definitions from the shell environment at startup.
-
Parsing the value of
SHELLOPTS
from the shell environment at startup.
-
Redirecting output using the `>', `>|', `<>', `>&',
`&>', and `>>' redirection operators.
-
Using the
exec
builtin to replace the shell with another command.
-
Adding or deleting builtin commands with the
`-f' and `-d' options to the
enable
builtin.
-
Specifying the `-p' option to the
command
builtin.
-
Turning off restricted mode with `set +r' or `set +o restricted'.
This document was generated
by rdg (Feb 25 2004)
using texi2html