2 # For a description of the syntax of this configuration file,
3 # see scripts/kbuild/config-language.txt.
12 basename is used to strip the directory and suffix from filenames,
13 leaving just the filename itself. Enable this option if you wish
14 to enable the 'basename' utility.
20 cal is used to display a monthly calender.
26 cat is used to concatenate files and print them to the standard
27 output. Enable this option if you wish to enable the 'cat' utility.
33 chgrp is used to change the group ownership of files.
39 chmod is used to change the access permission of files.
45 chown is used to change the user and/or group ownership
52 chroot is used to change the root directory and run a command.
53 The default command is `/bin/sh'.
59 cmp is used to compare two files and returns the result
66 cp is used to copy files and directories.
72 cut is used to print selected parts of lines from
78 comment "date (forced enabled for use with watch)"
86 date is used to set the system date or display the
87 current time in the given format.
90 config CONFIG_FEATURE_DATE_ISOFMT
91 bool " Enable ISO date format output (-I)"
93 depends on CONFIG_DATE
95 Enable option (-I) to output an ISO-8601 compliant
102 dd copies a file (from standard input to standard output,
103 by default) using specific input and output blocksizes,
104 while optionally performing conversions on it.
110 df reports the amount of disk space used and available
113 config CONFIG_DIRNAME
117 dirname is used to strip a non-directory suffix from
120 config CONFIG_DOS2UNIX
121 bool "dos2unix/unix2dos"
124 dos2unix is used to convert a text file from DOS format to
125 UNIX format, and vice versa.
127 config CONFIG_UNIX2DOS
130 depends on CONFIG_DOS2UNIX
133 bool "du (default blocksize of 512 bytes)"
136 du is used to report the amount of disk space used
139 config CONFIG_FEATURE_DU_DEFALT_BLOCKSIZE_1K
140 bool " Use a default blocksize of 1024 bytes (1K)"
144 Use a blocksize of (1K) instead of the default 512b.
147 bool "echo (basic SUSv3 version taking no options)"
150 echo is used to print a specified string to stdout.
152 config CONFIG_FEATURE_FANCY_ECHO
153 bool " Enable echo options (-n and -e)"
155 depends on CONFIG_ECHO
157 This adds options (-n and -e) to echo.
163 env is used to set an environment variable and run
164 a command; without options it displays the current
171 expr is used to calculate numbers and print the result
174 if CONFIG_HUSH || CONFIG_LASH || CONFIG_MSH
177 comment "false (forced enabled for use with shell)"
180 if !CONFIG_HUSH && !CONFIG_LASH && !CONFIG_MSH
185 false returns an exit code of FALSE (1).
192 Wrap text to fit a specific width.
198 head is used to print the first specified number of lines
201 config CONFIG_FEATURE_FANCY_HEAD
202 bool " Enable head options (-c, -q, and -v)"
204 depends on CONFIG_HEAD
206 This enables the head options (-c, -q, and -v).
212 hostid prints the numeric identifier (in hexadecimal) for
219 id displays the current user and group ID names.
221 config CONFIG_INSTALL
225 Copy files and set attributes.
231 length is used to print out the length of a specified string.
237 ln is used to create hard or soft links between files.
239 config CONFIG_LOGNAME
243 logname is used to print the current user's login name.
249 ls is used to list the contents of directories.
251 config CONFIG_FEATURE_LS_FILETYPES
252 bool " Enable filetyping options (-p and -F)"
256 Enable the ls options (-p and -F).
258 config CONFIG_FEATURE_LS_FOLLOWLINKS
259 bool " Enable symlinks dereferencing (-L)"
263 Enable the ls option (-L).
265 config CONFIG_FEATURE_LS_RECURSIVE
266 bool " Enable recursion (-R)"
270 Enable the ls option (-R).
272 config CONFIG_FEATURE_LS_SORTFILES
273 bool " Sort the file names"
277 Allow ls to sort file names alphabetically.
279 config CONFIG_FEATURE_LS_TIMESTAMPS
280 bool " Show file timestamps"
284 Allow ls to display timestamps for files.
286 config CONFIG_FEATURE_LS_USERNAME
287 bool " Show username/groupnames"
291 Allow ls to display username/groupname for files.
293 config CONFIG_FEATURE_LS_COLOR
294 bool " Use color to identify file types"
298 Allow ls to use color when displaying files.
304 md5sum is used to print or check MD5 checksums.
310 mkdir is used to create directories with the specified names.
316 mkfifo is used to create FIFOs (named pipes).
317 The `mknod' program can also create FIFOs.
323 mknod is used to create FIFOs or block/character special
324 files with the specified names.
330 mv is used to move or rename files or directories.
336 nice runs a program with modified scheduling priority.
342 od is used to dump binary files in octal and other formats.
348 printf is used to format and print specified strings.
349 It's similar to `echo' except it has more options.
355 pwd is used to print the current directory.
357 config CONFIG_REALPATH
361 Return the canonicalized absolute pathname.
362 This isn't provided by GNU shellutils, but where else does it belong.
368 rm is used to remove files or directories.
374 rmdir is used to remove empty directories.
380 print a sequence of numbers
382 config CONFIG_SHA1SUM
386 Compute and check SHA1 message digest
389 bool "sleep (single integer arg with no suffix)"
392 sleep is used to pause for a specified number of seconds,
394 config CONFIG_FEATURE_FANCY_SLEEP
395 bool " Enable multiple integer args and optional time suffixes"
397 depends on CONFIG_SLEEP
399 Allow sleep to pause for specified minutes, hours, and days.
405 sort is used to sort lines of text in specified files.
407 config CONFIG_SORT_BIG
408 bool " full SuSv3 compliant sort (Support -ktcsbdfiozgM)"
410 depends on CONFIG_SORT
412 Without this, sort only supports -r, -u, and an integer version
413 of -n. Selecting this adds sort keys, floating point support, and
414 more. This adds a little over 3k to a nonstatic build on x86.
416 The SuSv3 sort standard is available at:
417 http://www.opengroup.org/onlinepubs/007904975/utilities/sort.html
423 stty is used to change and print terminal line settings.
429 sync is used to flush filesystem buffers.
435 tail is used to print the last specified number of lines
438 config CONFIG_FEATURE_FANCY_TAIL
439 bool " Enable extra tail options (-q, -s, and -v)"
441 depends on CONFIG_TAIL
443 The options (-q, -s, and -v) are provided by GNU tail, but
444 are not specific in the SUSv3 standard.
450 tee is used to read from standard input and write
451 to standard output and files.
453 config CONFIG_FEATURE_TEE_USE_BLOCK_IO
454 bool " Enable block i/o (larger/faster) instead of byte i/o."
456 depends on CONFIG_TEE
458 Enable this option for a faster tee, at expense of size.
460 if CONFIG_ASH || CONFIG_HUSH || CONFIG_LASH || CONFIG_MSH
463 comment "test (forced enabled for use with shell)"
466 if !CONFIG_ASH && !CONFIG_HUSH && !CONFIG_LASH && !CONFIG_MSH
471 test is used to check file types and compare values,
472 returning an appropriate exit code. The shells (ash
473 and bash) have test builtin.
476 config CONFIG_FEATURE_TEST_64
477 bool " Extend test to 64 bit"
479 depends on CONFIG_TEST
481 Enable 64-bit support in test.
487 touch is used to create or change the access and/or
488 modification timestamp of specified files.
494 tr is used to squeeze, and/or delete characters from standard
495 input, writing to standard output.
497 if CONFIG_HUSH || CONFIG_LASH || CONFIG_MSH
500 comment "true (forced enabled for use with shell)"
503 if !CONFIG_HUSH && !CONFIG_LASH && !CONFIG_MSH
508 true returns an exit code of TRUE (0).
516 tty is used to print the name of the current terminal to
523 uname is used to print system information.
529 uniq is used to remove duplicate lines from a sorted file.
535 usleep is used to pause for a specified number of microseconds.
537 config CONFIG_UUDECODE
541 uudecode is used to decode a uuencoded file.
543 config CONFIG_UUENCODE
547 uuencode is used to uuencode a file.
553 watch is used to execute a program periodically, showing
554 output to the screen.
560 wc is used to print the number of bytes, words, and lines,
566 select CONFIG_FEATURE_U_W_TMP
568 who is used to show who is logged on.
574 whoami is used to print the username of the current
575 user id (same as id -un).
581 yes is used to repeatedly output a specific string, or
582 the default string `y'.
584 comment "Common options for cp and mv"
585 depends on CONFIG_CP || CONFIG_MV
587 config CONFIG_FEATURE_PRESERVE_HARDLINKS
588 bool " Preserve hard links"
590 depends on CONFIG_CP || CONFIG_MV
592 Allow cp and mv to preserve hard links.
594 comment "Common options for ls and more"
595 depends on CONFIG_LS || CONFIG_MORE
597 config CONFIG_FEATURE_AUTOWIDTH
598 bool " Calculate terminal & column widths"
600 depends on CONFIG_LS || CONFIG_MORE
602 This option allows utilities such as 'ls' and 'more' to determine the
603 width of the screen, which can allow them to display additional text
604 or avoid wrapping text onto the next line. If you leave this
605 disabled, your utilities will be especially primitive and will be
606 unable to determine the current screen width.
608 comment "Common options for df, du, ls"
609 depends on CONFIG_DF || CONFIG_DU || CONFIG_LS
611 config CONFIG_FEATURE_HUMAN_READABLE
612 bool " Support for human readable output (example 13k, 23M, 235G)"
614 depends on CONFIG_DF || CONFIG_DU || CONFIG_LS
616 Allow df, du, and ls to have human readable output.
618 comment "Common options for md5sum, sha1sum"
619 depends on CONFIG_MD5SUM || CONFIG_SHA1SUM
621 config CONFIG_FEATURE_MD5_SHA1_SUM_CHECK
622 bool " Enable -c, -s and -w options"
624 depends on CONFIG_MD5SUM || CONFIG_SHA1SUM
626 Enabling the -c options allows files to be checked
627 against pre-calculated hash values.
629 -s and -w are useful options when verifying checksums.