289 lines
8.3 KiB
Plaintext
289 lines
8.3 KiB
Plaintext
#
|
|
# For a description of the syntax of this configuration file,
|
|
# see scripts/kbuild/config-language.txt.
|
|
#
|
|
|
|
menu "Shells"
|
|
|
|
choice
|
|
prompt "Choose your default shell"
|
|
default CONFIG_FEATURE_SH_IS_NONE
|
|
help
|
|
Choose a shell. The ash shell is the most bash compatible
|
|
and full featured one.
|
|
|
|
config CONFIG_FEATURE_SH_IS_ASH
|
|
select CONFIG_ASH
|
|
bool "ash"
|
|
|
|
config CONFIG_FEATURE_SH_IS_HUSH
|
|
select CONFIG_HUSH
|
|
bool "hush"
|
|
|
|
config CONFIG_FEATURE_SH_IS_LASH
|
|
select CONFIG_LASH
|
|
bool "lash"
|
|
|
|
config CONFIG_FEATURE_SH_IS_MSH
|
|
select CONFIG_MSH
|
|
bool "msh"
|
|
|
|
config CONFIG_FEATURE_SH_IS_NONE
|
|
bool "none"
|
|
|
|
endchoice
|
|
|
|
config CONFIG_ASH
|
|
bool "ash"
|
|
default n
|
|
select CONFIG_TEST
|
|
help
|
|
Tha 'ash' shell adds about 60k in the default configuration and is
|
|
the most complete and most pedantically correct shell included with
|
|
busybox. This shell is actually a derivative of the Debian 'dash'
|
|
shell (by Herbert Xu), which was created by porting the 'ash' shell
|
|
(written by Kenneth Almquist) from NetBSD.
|
|
|
|
comment "Ash Shell Options"
|
|
depends on CONFIG_ASH
|
|
|
|
config CONFIG_ASH_JOB_CONTROL
|
|
bool "Enable Job control"
|
|
default y
|
|
depends on CONFIG_ASH
|
|
help
|
|
Enable job control in the ash shell.
|
|
|
|
config CONFIG_ASH_READ_NCHARS
|
|
bool "Enable 'read -n N' and 'read -s' support"
|
|
default n
|
|
depends on CONFIG_ASH
|
|
help
|
|
'read -n N' will return a value after N characters have been read.
|
|
'read -s' will read without echoing the user's input.
|
|
|
|
config CONFIG_ASH_READ_TIMEOUT
|
|
bool "Enable 'read -t S' support."
|
|
default n
|
|
depends on CONFIG_ASH
|
|
help
|
|
'read -t S' will return a value after S seconds have passed.
|
|
This implementation will allow fractional seconds, expressed
|
|
as a decimal fraction, e.g. 'read -t 2.5 foo'.
|
|
|
|
config CONFIG_ASH_ALIAS
|
|
bool "Enable alias support"
|
|
default y
|
|
depends on CONFIG_ASH
|
|
help
|
|
Enable alias support in the ash shell.
|
|
|
|
config CONFIG_ASH_MATH_SUPPORT
|
|
bool "Enable Posix math support"
|
|
default y
|
|
depends on CONFIG_ASH
|
|
help
|
|
Enable math support in the ash shell.
|
|
|
|
config CONFIG_ASH_MATH_SUPPORT_64
|
|
bool "Extend Posix math support to 64 bit"
|
|
default n
|
|
depends on CONFIG_ASH_MATH_SUPPORT
|
|
help
|
|
Enable 64-bit math support in the ash shell. This will make
|
|
the shell slightly larger, but will allow computation with very
|
|
large numbers.
|
|
|
|
config CONFIG_ASH_GETOPTS
|
|
bool "Enable getopts builtin to parse positional parameters"
|
|
default n
|
|
depends on CONFIG_ASH
|
|
help
|
|
Enable getopts builtin in the ash shell.
|
|
|
|
config CONFIG_ASH_CMDCMD
|
|
bool "Enable cmdcmd to override shell builtins"
|
|
default n
|
|
depends on CONFIG_ASH
|
|
help
|
|
Enable support for the ash 'command' builtin, which allows
|
|
you to run the specified command with the specified arguments,
|
|
even when there is an ash builtin command with the same name.
|
|
|
|
config CONFIG_ASH_BUILTIN_ECHO
|
|
bool "Enable builtin version of 'echo'"
|
|
default n
|
|
depends on CONFIG_ASH
|
|
help
|
|
Enable support for echo, built in to ash.
|
|
|
|
# this entry also appears in coreutils/Config.in, next to the echo applet
|
|
config CONFIG_FEATURE_FANCY_ECHO
|
|
bool "Enable echo options (-n and -e)"
|
|
default y
|
|
depends on CONFIG_ASH_BUILTIN_ECHO
|
|
help
|
|
This adds options (-n and -e) to echo.
|
|
|
|
config CONFIG_ASH_MAIL
|
|
bool "Check for new mail on interactive shells"
|
|
default y
|
|
depends on CONFIG_ASH
|
|
help
|
|
Enable "check for new mail" in the ash shell.
|
|
|
|
config CONFIG_ASH_OPTIMIZE_FOR_SIZE
|
|
bool "Optimize for size instead of speed"
|
|
default y
|
|
depends on CONFIG_ASH
|
|
help
|
|
Compile ash for reduced size at the price of speed.
|
|
|
|
config CONFIG_ASH_RANDOM_SUPPORT
|
|
bool "Enable pseudorandom generator and variable $RANDOM"
|
|
default n
|
|
depends on CONFIG_ASH
|
|
help
|
|
Enable pseudorandom generator and dynamic variable "$RANDOM".
|
|
Each read of "$RANDOM" will generate a new pseudorandom value.
|
|
You can reset the generator by using a specified start value.
|
|
After "unset RANDOM" then generator will switch off and this
|
|
variable will no longer have special treatment.
|
|
|
|
config CONFIG_ASH_EXPAND_PRMT
|
|
bool "Expand prompt string"
|
|
default n
|
|
depends on CONFIG_ASH
|
|
help
|
|
"PS#" may be contain volatile content, such as backquote commands.
|
|
This option recreates the prompt string from the environment
|
|
variable each time it is displayed.
|
|
|
|
config CONFIG_HUSH
|
|
bool "hush"
|
|
default n
|
|
select CONFIG_TRUE
|
|
select CONFIG_FALSE
|
|
select CONFIG_TEST
|
|
help
|
|
hush is a very small shell (just 18k) and it has fairly complete
|
|
Bourne shell grammar. It even handles all the normal flow control
|
|
options such as if/then/elif/else/fi, for/in/do/done, while loops,
|
|
etc.
|
|
|
|
It does not handle case/esac, select, function, here documents ( <<
|
|
word ), arithmetic expansion, aliases, brace expansion, tilde
|
|
expansion, &> and >& redirection of stdout+stderr, etc.
|
|
|
|
|
|
config CONFIG_LASH
|
|
bool "lash"
|
|
default n
|
|
select CONFIG_TRUE
|
|
select CONFIG_FALSE
|
|
select CONFIG_TEST
|
|
help
|
|
lash is the very smallest shell (adds just 10k) and it is quite
|
|
usable as a command prompt, but it is not suitable for any but the
|
|
most trivial scripting (such as an initrd that calls insmod a few
|
|
times) since it does not understand any Bourne shell grammar. It
|
|
does handle pipes, redirects, and job control though. Adding in
|
|
command editing makes it a very nice lightweight command prompt.
|
|
|
|
|
|
config CONFIG_MSH
|
|
bool "msh"
|
|
default n
|
|
select CONFIG_TRUE
|
|
select CONFIG_FALSE
|
|
select CONFIG_TEST
|
|
help
|
|
The minix shell (adds just 30k) is quite complete and handles things
|
|
like for/do/done, case/esac and all the things you expect a Bourne
|
|
shell to do. It is not always pedantically correct about Bourne
|
|
shell grammar (try running the shell testscript "tests/sh.testcases"
|
|
on it and compare vs bash) but for most things it works quite well.
|
|
It also uses only vfork, so it can be used on uClinux systems.
|
|
|
|
comment "Bourne Shell Options"
|
|
depends on CONFIG_MSH || CONFIG_LASH || CONFIG_HUSH || CONFIG_ASH
|
|
|
|
config CONFIG_FEATURE_SH_EXTRA_QUIET
|
|
bool "Hide message on interactive shell startup"
|
|
default n
|
|
depends on CONFIG_MSH || CONFIG_LASH || CONFIG_HUSH || CONFIG_ASH
|
|
help
|
|
Remove the busybox introduction when starting a shell.
|
|
|
|
config CONFIG_FEATURE_SH_STANDALONE_SHELL
|
|
bool "Standalone shell"
|
|
default n
|
|
depends on CONFIG_MSH || CONFIG_LASH || CONFIG_HUSH || CONFIG_ASH
|
|
help
|
|
This option causes the selected busybox shell to use busybox applets
|
|
in preference to executables in the PATH whenever possible. For
|
|
example, entering the command 'ifconfig' into the shell would cause
|
|
busybox to use the ifconfig busybox applet. Specifying the fully
|
|
qualified executable name, such as '/sbin/ifconfig' will still
|
|
execute the /sbin/ifconfig executable on the filesystem. This option
|
|
is generally used when creating a statically linked version of busybox
|
|
for use as a rescue shell, in the event that you screw up your system.
|
|
|
|
Note that when using this option, the shell will attempt to directly
|
|
run '/bin/busybox'. If you do not have the busybox binary sitting in
|
|
that exact location with that exact name, this option will not work at
|
|
all.
|
|
|
|
config CONFIG_FEATURE_COMMAND_EDITING
|
|
bool "command line editing"
|
|
default n
|
|
depends on CONFIG_MSH || CONFIG_LASH || CONFIG_HUSH || CONFIG_ASH
|
|
help
|
|
Enable command editing in shell.
|
|
|
|
config CONFIG_FEATURE_COMMAND_EDITING_VI
|
|
bool "vi-style line editing commands"
|
|
default n
|
|
depends on CONFIG_FEATURE_COMMAND_EDITING
|
|
help
|
|
Enable vi-style line editing in the shell. This mode can be
|
|
turned on and off with "set -o vi" and "set +o vi".
|
|
|
|
config CONFIG_FEATURE_COMMAND_HISTORY
|
|
int "history size"
|
|
default 15
|
|
depends on CONFIG_FEATURE_COMMAND_EDITING
|
|
help
|
|
Specify command history size in shell.
|
|
|
|
config CONFIG_FEATURE_COMMAND_SAVEHISTORY
|
|
bool "history saving"
|
|
default n
|
|
depends on CONFIG_ASH && CONFIG_FEATURE_COMMAND_EDITING
|
|
help
|
|
Enable history saving in ash shell.
|
|
|
|
config CONFIG_FEATURE_COMMAND_TAB_COMPLETION
|
|
bool "tab completion"
|
|
default n
|
|
depends on CONFIG_FEATURE_COMMAND_EDITING
|
|
help
|
|
Enable tab completion in shell.
|
|
|
|
config CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
|
|
bool "username completion"
|
|
default n
|
|
depends on CONFIG_FEATURE_COMMAND_TAB_COMPLETION
|
|
help
|
|
Enable username completion in shell.
|
|
|
|
config CONFIG_FEATURE_SH_FANCY_PROMPT
|
|
bool "Fancy shell prompts"
|
|
default n
|
|
depends on CONFIG_FEATURE_COMMAND_EDITING
|
|
help
|
|
Setting this option allows for prompts to use things like \w and
|
|
\$ and also using escape codes.
|
|
|
|
endmenu
|