package/busybox/config/shell/Config.in

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see scripts/kbuild/config-language.txt.
   4 #
   5
   6 menu "Another Bourne-like Shell"
   7
   8 choice
   9         prompt "Choose your default shell"
  10         default BUSYBOX_CONFIG_FEATURE_SH_IS_ASH
  11         help
  12           Choose a shell. The ash shell is the most bash compatible
  13           and full featured one.
  14
  15 config BUSYBOX_CONFIG_FEATURE_SH_IS_ASH
  16         select BUSYBOX_CONFIG_ASH
  17         bool "ash"
  18
  19 config BUSYBOX_CONFIG_FEATURE_SH_IS_HUSH
  20         select BUSYBOX_CONFIG_HUSH
  21         bool "hush"
  22
  23 config BUSYBOX_CONFIG_FEATURE_SH_IS_LASH
  24         select BUSYBOX_CONFIG_LASH
  25         bool "lash"
  26
  27 config BUSYBOX_CONFIG_FEATURE_SH_IS_MSH
  28         select BUSYBOX_CONFIG_MSH
  29         bool "msh"
  30
  31 config BUSYBOX_CONFIG_FEATURE_SH_IS_NONE
  32         bool "none"
  33
  34 endchoice
  35
  36 config BUSYBOX_CONFIG_ASH
  37         bool "ash"
  38         default y
  39         help
  40           Tha 'ash' shell adds about 60k in the default configuration and is
  41           the most complete and most pedantically correct shell included with
  42           busybox.  This shell is actually a derivative of the Debian 'dash'
  43           shell (by Herbert Xu), which was created by porting the 'ash' shell
  44           (written by Kenneth Almquist) from NetBSD.
  45
  46 comment "Ash Shell Options"
  47         depends on BUSYBOX_CONFIG_ASH
  48
  49 config BUSYBOX_CONFIG_ASH_JOB_CONTROL
  50         bool "  Enable Job control"
  51         default y
  52         depends on BUSYBOX_CONFIG_ASH
  53         help
  54           Enable job control in the ash shell.
  55
  56 config BUSYBOX_CONFIG_ASH_ALIAS
  57         bool "  Enable alias support"
  58         default y
  59         depends on BUSYBOX_CONFIG_ASH
  60         help
  61           Enable alias support in the ash shell.
  62
  63 config BUSYBOX_CONFIG_ASH_MATH_SUPPORT
  64         bool "  Enable Posix math support"
  65         default y
  66         depends on BUSYBOX_CONFIG_ASH
  67         help
  68           Enable math support in the ash shell.
  69
  70 config BUSYBOX_CONFIG_ASH_MATH_SUPPORT_64
  71         bool "    Extend Posix math support to 64 bit"
  72         default n
  73         depends on BUSYBOX_CONFIG_ASH_MATH_SUPPORT
  74         help
  75           Enable 64-bit math support in the ash shell.  This will make
  76           the shell slightly larger, but will allow computation with very
  77           large numbers.
  78
  79 config BUSYBOX_CONFIG_ASH_GETOPTS
  80         bool "  Enable getopts builtin to parse positional parameters"
  81         default y
  82         depends on BUSYBOX_CONFIG_ASH
  83         help
  84           Enable getopts builtin in the ash shell.
  85
  86 config BUSYBOX_CONFIG_ASH_CMDCMD
  87         bool "  Enable cmdcmd to override shell builtins"
  88         default y
  89         depends on BUSYBOX_CONFIG_ASH
  90         help
  91           Enable support for the ash 'command' builtin, which allows
  92           you to run the specified command with the specified arguments,
  93           even when there is an ash builtin command with the same name.
  94
  95 config BUSYBOX_CONFIG_ASH_MAIL
  96         bool "  Check for new mail on interactive shells"
  97         default n
  98         depends on BUSYBOX_CONFIG_ASH
  99         help
 100           Enable "check for new mail" in the ash shell.
 101
 102 config BUSYBOX_CONFIG_ASH_OPTIMIZE_FOR_SIZE
 103         bool "  Optimize for size instead of speed"
 104         default y
 105         depends on BUSYBOX_CONFIG_ASH
 106         help
 107           Compile ash for reduced size at price of speed.
 108
 109 config BUSYBOX_CONFIG_ASH_RANDOM_SUPPORT
 110         bool "  Enable pseudorandom generator and variable $RANDOM"
 111         default n
 112         depends on BUSYBOX_CONFIG_ASH
 113         help
 114           Enable pseudorandom generator and dynamic variable "$RANDOM".
 115           Each read of "$RANDOM" will generate a new pseudorandom value.
 116           You can reset the generator by using a specified start value.
 117           After "unset RANDOM" then generator will switch off and this
 118           variable will no longer have special treatment.
 119
 120 config BUSYBOX_CONFIG_HUSH
 121         bool "hush"
 122         default n
 123         help
 124           hush is a very small shell (just 18k) and it has fairly complete
 125           Bourne shell grammar.  It even handles all the normal flow control
 126           options such as if/then/elif/else/fi, for/in/do/done, while loops,
 127           etc.
 128
 129           It does not handle case/esac, select, function, here documents ( <<
 130           word ), arithmetic expansion, aliases, brace expansion, tilde
 131           expansion, &> and >& redirection of stdout+stderr, etc.
 132
 133
 134 config BUSYBOX_CONFIG_LASH
 135         bool "lash"
 136         default n
 137         help
 138           lash is the very smallest shell (adds just 10k) and it is quite
 139           usable as a command prompt, but it is not suitable for any but the
 140           most trivial scripting (such as an initrd that calls insmod a few
 141           times) since it does not understand any Bourne shell grammar.  It
 142           does handle pipes, redirects, and job control though.  Adding in
 143           command editing makes it a very nice lightweight command prompt.
 144
 145
 146 config BUSYBOX_CONFIG_MSH
 147         bool "msh"
 148         default n
 149         help
 150           The minix shell (adds just 30k) is quite complete and handles things
 151           like for/do/done, case/esac and all the things you expect a Bourne
 152           shell to do.  It is not always pedantically correct about Bourne
 153           shell grammar (try running the shell testscript "tests/sh.testcases"
 154           on it and compare vs bash) but for most things it works quite well.
 155           It also uses only vfork, so it can be used on uClinux systems.
 156
 157 comment "Bourne Shell Options"
 158         depends on BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH
 159
 160 config BUSYBOX_CONFIG_FEATURE_SH_EXTRA_QUIET
 161         bool "Hide message on interactive shell startup"
 162         default n
 163         depends on BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH
 164         help
 165           Remove the busybox introduction when starting a shell.
 166
 167 config BUSYBOX_CONFIG_FEATURE_SH_STANDALONE_SHELL
 168         bool "Standalone shell"
 169         default n
 170         depends on BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH
 171         help
 172           This option causes the selected busybox shell to use busybox applets
 173           in preference to executables in the PATH whenever possible.  For
 174           example, entering the command 'ifconfig' into the shell would cause
 175           busybox to use the ifconfig busybox applet.  Specifying the fully
 176           qualified executable name, such as '/sbin/ifconfig' will still
 177           execute the /sbin/ifconfig executable on the filesystem.  This option
 178           is generally used when creating a staticly linked version of busybox
 179           for use as a rescue shell, in the event that you screw up your system.
 180
 181           Note that when using this option, the shell will attempt to directly
 182           run '/bin/busybox'.  If you do not have the busybox binary sitting in
 183           that exact location with that exact name, this option will not work at
 184           all.
 185
 186 config BUSYBOX_CONFIG_FEATURE_COMMAND_EDITING
 187         bool "command line editing"
 188         default y
 189         depends on BUSYBOX_CONFIG_MSH || BUSYBOX_CONFIG_LASH || BUSYBOX_CONFIG_HUSH || BUSYBOX_CONFIG_ASH
 190         help
 191           Enable command editing in shell.
 192
 193 config BUSYBOX_CONFIG_FEATURE_COMMAND_HISTORY
 194         int "history size"
 195         default 15
 196         depends on BUSYBOX_CONFIG_FEATURE_COMMAND_EDITING
 197         help
 198           Specify command history size in shell.
 199
 200 config BUSYBOX_CONFIG_FEATURE_COMMAND_SAVEHISTORY
 201         bool "history saving"
 202         default n
 203         depends on BUSYBOX_CONFIG_ASH && BUSYBOX_CONFIG_FEATURE_COMMAND_EDITING
 204         help
 205           Enable history saving in ash shell.
 206
 207 config BUSYBOX_CONFIG_FEATURE_COMMAND_TAB_COMPLETION
 208         bool "tab completion"
 209         default y
 210         depends on BUSYBOX_CONFIG_FEATURE_COMMAND_EDITING
 211         help
 212           Enable tab completion in shell.
 213
 214 config BUSYBOX_CONFIG_FEATURE_COMMAND_USERNAME_COMPLETION
 215         bool "username completion"
 216         default n
 217         depends on BUSYBOX_CONFIG_FEATURE_COMMAND_TAB_COMPLETION
 218         help
 219           Enable username completion in shell.
 220
 221 config BUSYBOX_CONFIG_FEATURE_SH_FANCY_PROMPT
 222         bool "Fancy shell prompts"
 223         default y
 224         depends on BUSYBOX_CONFIG_FEATURE_COMMAND_EDITING
 225         help
 226           Setting this option allows for prompts to use things like \w and
 227           \$ and also using escape codes.
 228
 229 endmenu