2 # For a description of the syntax of this configuration file,
3 # see scripts/kbuild/config-language.txt.
6 menu "Miscellaneous Utilities"
12 Adjtimex reads and optionally sets adjustment parameters for
13 the Linux clock adjustment algorithm.
19 The bbconfig applet will print the config file with which
28 config FEATURE_CHAT_NOFAIL
29 bool "Enable NOFAIL expect strings"
33 When enabled expect strings which are started with a dash trigger
34 no-fail mode. That is when expectation is not met within timeout
35 the script is not terminated but sends next SEND string and waits
36 for next EXPECT string. This allows to compose far more flexible
39 config FEATURE_CHAT_TTY_HIFI
40 bool "Force STDIN to be a TTY"
44 Original chat always treats STDIN as a TTY device and sets for it
45 so-called raw mode. This option turns on such behaviour.
47 config FEATURE_CHAT_IMPLICIT_CR
48 bool "Enable implicit Carriage Return"
52 When enabled make chat to terminate all SEND strings with a "\r"
53 unless "\c" is met anywhere in the string.
55 config FEATURE_CHAT_SWALLOW_OPTS
56 bool "Swallow options"
60 Busybox chat require no options. To make it not fail when used
61 in place of original chat (which has a bunch of options) turn
64 config FEATURE_CHAT_SEND_ESCAPES
65 bool "Support weird SEND escapes"
69 Original chat uses some escape sequences in SEND arguments which
70 are not sent to device but rather performs special actions.
71 E.g. "\K" means to send a break sequence to device.
72 "\d" delays execution for a second, "\p" -- for a 1/100 of second.
73 Before turning this option on think twice: do you really need them?
75 config FEATURE_CHAT_VAR_ABORT_LEN
76 bool "Support variable-length ABORT conditions"
80 Original chat uses fixed 50-bytes length ABORT conditions. Say N here.
82 config FEATURE_CHAT_CLR_ABORT
83 bool "Support revoking of ABORT conditions"
87 Support CLR_ABORT directive.
93 manipulate real-time attributes of a process.
94 This requires sched_{g,s}etparam support in your libc.
100 select FEATURE_SYSLOG
102 Crond is a background daemon that parses individual crontab
103 files and executes commands on behalf of the users in question.
104 This is a port of dcron from slackware. It uses files of the
105 format /var/spool/cron/crontabs/<username> files, for example:
106 $ cat /var/spool/cron/crontabs/root
107 # Run daily cron jobs at 4:40 every day:
108 40 4 * * * /etc/cron/daily > /dev/null 2>&1
110 config FEATURE_CROND_D
111 bool "Support option -d to redirect output to stderr"
115 -d sets loglevel to 0 (most verbose) and directs all output to stderr.
117 config FEATURE_CROND_CALL_SENDMAIL
118 bool "Using /usr/sbin/sendmail?"
122 Support calling /usr/sbin/sendmail for send cmd outputs.
124 config FEATURE_CROND_DIR
125 string "crond spool directory"
126 default "/var/spool/cron"
127 depends on CROND || CRONTAB
129 Location of crond spool.
136 Crontab manipulates the crontab for a particular user. Only
137 the superuser may specify a different user and/or crontab directory.
138 Note that Busybox binary must be setuid root for this applet to
145 Dc is a reverse-polish desk calculator which supports unlimited
146 precision arithmetic.
148 config FEATURE_DC_LIBM
149 bool "Enable power and exp functions (requires libm)"
153 Enable power and exp functions.
154 NOTE: This will require libm to be present for linking.
157 bool "devfsd (obsolete)"
159 select FEATURE_SYSLOG
161 This is deprecated and should NOT be used anymore.
162 Use linux >= 2.6 (optionally with hotplug) and mdev instead!
163 See docs/mdev.txt for detailed instructions on how to use mdev
166 Provides compatibility with old device names on a devfs systems.
167 You should set it to true if you have devfs enabled.
168 The following keywords in devsfd.conf are supported:
169 "CLEAR_CONFIG", "INCLUDE", "OPTIONAL_INCLUDE", "RESTORE",
170 "PERMISSIONS", "EXECUTE", "COPY", "IGNORE",
171 "MKOLDCOMPAT", "MKNEWCOMPAT","RMOLDCOMPAT", "RMNEWCOMPAT".
173 But only if they are written UPPERCASE!!!!!!!!
175 config DEVFSD_MODLOAD
176 bool "Adds support for MODLOAD keyword in devsfd.conf"
180 This actually doesn't work with busybox modutils but needs
181 the external modutils.
184 bool "Enables the -fg and -np options"
188 -fg Run the daemon in the foreground.
189 -np Exit after parsing the configuration file.
190 Do not poll for events.
192 config DEVFSD_VERBOSE
193 bool "Increases logging (and size)"
197 Increases logging to stderr or syslog.
200 bool "Use devfs names for all devices (obsolete)"
203 This is obsolete and should NOT be used anymore.
204 Use linux >= 2.6 (optionally with hotplug) and mdev instead!
206 For legacy systems -- if there is no way around devfsd -- this
207 tells busybox to look for names like /dev/loop/0 instead of
208 /dev/loop0. If your /dev directory has normal names instead of
209 devfs names, you don't want this.
215 devmem is a small program that reads and writes from physical
216 memory using /dev/mem.
222 Used to eject cdroms. (defaults to /dev/cdrom)
224 config FEATURE_EJECT_SCSI
229 Add the -s option to eject, this allows to eject SCSI-Devices and
236 Shows splash image and progress bar on framebuffer device.
237 Can be used during boot phase of an embedded device. ~2kb.
239 - use kernel option 'vga=xxx' or otherwise enable fb device.
240 - put somewhere fbsplash.cfg file and an image in .ppm format.
241 - $ setsid fbsplash [params] &
243 -d /dev/fbN: framebuffer device (if not /dev/fb0)
244 -s path_to_image_file (can be "-" for stdin)
245 -i path_to_cfg_file (can be "-" for stdin)
246 -f path_to_fifo (can be "-" for stdin)
247 - if you want to run it only in presence of kernel parameter:
248 grep -q "fbsplash=on" </proc/cmdline && setsid fbsplash [params] &
250 "NN" (ASCII decimal number) - percentage to show on progress bar
251 "exit" - well you guessed it
253 config FLASH_ERASEALL
254 bool "flash_eraseall"
257 The flash_eraseall binary from mtd-utils as of git head c4c6a59eb.
258 This utility is used to erase the whole MTD device.
264 Set/set program io scheduling class and priority
265 Requires kernel >= 2.6.13
271 Simple inotify daemon. Reports filesystem changes. Requires
279 'last' displays a list of the last users that logged into the system.
282 prompt "Choose last implementation"
284 default FEATURE_LAST_SMALL
286 config FEATURE_LAST_SMALL
289 This is a small version of last with just the basic set of
292 config FEATURE_LAST_FANCY
295 'last' displays detailed information about the last users that
296 logged into the system (mimics sysvinit last). +900 bytes.
303 'less' is a pager, meaning that it displays text files. It possesses
304 a wide array of features, and is an improvement over 'more'.
306 config FEATURE_LESS_MAXLINES
307 int "Max number of input lines less will try to eat"
311 config FEATURE_LESS_BRACKETS
312 bool "Enable bracket searching"
316 This option adds the capability to search for matching left and right
317 brackets, facilitating programming.
319 config FEATURE_LESS_FLAGS
320 bool "Enable extra flags"
324 The extra flags provided do the following:
326 The -M flag enables a more sophisticated status line.
327 The -m flag enables a simpler status line with a percentage.
329 config FEATURE_LESS_MARKS
334 Marks enable positions in a file to be stored for easy reference.
336 config FEATURE_LESS_REGEXP
337 bool "Enable regular expressions"
341 Enable regular expressions, allowing complex file searches.
343 config FEATURE_LESS_WINCH
344 bool "Enable automatic resizing on window size changes"
348 Makes less track window size changes.
350 config FEATURE_LESS_DASHCMD
351 bool "Enable flag changes ('-' command)"
355 This enables the ability to change command-line flags within
356 less itself ('-' keyboard command).
358 config FEATURE_LESS_LINENUMS
359 bool "Enable dynamic switching of line numbers"
361 depends on FEATURE_LESS_DASHCMD
369 Get/Set hard drive parameters. Primarily intended for ATA
370 drives. Adds about 13k (or around 30k if you enable the
371 FEATURE_HDPARM_GET_IDENTITY option)....
373 config FEATURE_HDPARM_GET_IDENTITY
374 bool "Support obtaining detailed information directly from drives"
378 Enables the -I and -i options to obtain detailed information
379 directly from drives about their capabilities and supported ATA
380 feature set. If no device name is specified, hdparm will read
381 identify data from stdin. Enabling this option will add about 16k...
383 config FEATURE_HDPARM_HDIO_SCAN_HWIF
384 bool "Register an IDE interface (DANGEROUS)"
388 Enables the 'hdparm -R' option to register an IDE interface.
389 This is dangerous stuff, so you should probably say N.
391 config FEATURE_HDPARM_HDIO_UNREGISTER_HWIF
392 bool "Un-register an IDE interface (DANGEROUS)"
396 Enables the 'hdparm -U' option to un-register an IDE interface.
397 This is dangerous stuff, so you should probably say N.
399 config FEATURE_HDPARM_HDIO_DRIVE_RESET
400 bool "Perform device reset (DANGEROUS)"
404 Enables the 'hdparm -w' option to perform a device reset.
405 This is dangerous stuff, so you should probably say N.
407 config FEATURE_HDPARM_HDIO_TRISTATE_HWIF
408 bool "Tristate device for hotswap (DANGEROUS)"
412 Enables the 'hdparm -x' option to tristate device for hotswap,
413 and the '-b' option to get/set bus state. This is dangerous
414 stuff, so you should probably say N.
416 config FEATURE_HDPARM_HDIO_GETSET_DMA
417 bool "Get/set using_dma flag (DANGEROUS)"
421 Enables the 'hdparm -d' option to get/set using_dma flag.
422 This is dangerous stuff, so you should probably say N.
428 'makedevs' is a utility used to create a batch of devices with
431 There are two choices for command line behaviour, the interface
432 as used by LEAF/Linux Router Project, or a device table file.
434 'leaf' is traditionally what busybox follows, it allows multiple
435 devices of a particluar type to be created per command.
437 Device properties are passed as command line arguments.
439 'table' reads device properties from a file or stdin, allowing
440 a batch of unrelated devices to be made with one command.
441 User/group names are allowed as an alternative to uid/gid.
444 prompt "Choose makedevs behaviour"
446 default FEATURE_MAKEDEVS_TABLE
448 config FEATURE_MAKEDEVS_LEAF
451 config FEATURE_MAKEDEVS_TABLE
460 Format and display manual pages.
466 The poor man's minicom utility for chatting with serial port devices.
472 mountpoint checks if the directory is a mountpoint.
478 mt is used to control tape devices. You can use the mt utility
479 to advance or rewind a tape past a specified number of archive
486 raidautorun tells the kernel md driver to
487 search and start RAID arrays.
494 Preload the files listed on the command line into RAM cache so that
495 subsequent reads on these files will not block on disk I/O.
497 This applet just calls the readahead(2) system call on each file.
498 It is mainly useful in system startup scripts to preload files
499 or executables before they are used. When used at the right time
500 (in particular when a CPU bound process is running) it can
501 significantly speed up system startup.
503 As readahead(2) blocks until each file has been read, it is best to
504 run this applet as a background job.
510 find the current and previous system runlevel.
512 This applet uses utmp but does not rely on busybox supporing
513 utmp on purpose. It is used by e.g. emdebian via /etc/init.d/rc.
519 Receive files using the Xmodem protocol.
525 setsid runs a program in a new session
531 strings prints the printable character sequences for each file
538 Retrieve or set a processes's CPU affinity.
539 This requires sched_{g,s}etaffinity support in your libc.
541 config FEATURE_TASKSET_FANCY
546 Add code for fancy output. This merely silences a compiler-warning
547 and adds about 135 Bytes. May be needed for machines with alot
554 The time command runs the specified program with the given arguments.
555 When the command finishes, time writes a message to standard output
556 giving timing statistics about this program run.
562 Runs a program and watches it. If it does not terminate in
563 specified number of seconds, it is sent a signal.
569 A replacement for "stty size". Unlike stty, can report only width,
570 only height, or both, in any order. It also does not complain on
571 error, but returns default 80x24.
572 Usage in shell scripts: width=`ttysize w`.
578 The watchdog utility is used with hardware or software watchdog
579 device drivers. It opens the specified watchdog device special file
580 and periodically writes a magic character to the device. If the
581 watchdog applet ever fails to write the magic character within a
582 certain amount of time, the watchdog device assumes the system has
583 hung, and will cause the hardware to reboot.