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
167 config CONFIG_PRINTENV
171 printenv is used to print all or part of environment.
177 expr is used to calculate numbers and print the result
180 if CONFIG_HUSH || CONFIG_LASH || CONFIG_MSH
183 comment "false (forced enabled for use with shell)"
186 if !CONFIG_HUSH && !CONFIG_LASH && !CONFIG_MSH
191 false returns an exit code of FALSE (1).
198 Wrap text to fit a specific width.
204 head is used to print the first specified number of lines
207 config CONFIG_FEATURE_FANCY_HEAD
208 bool " Enable head options (-c, -q, and -v)"
210 depends on CONFIG_HEAD
212 This enables the head options (-c, -q, and -v).
218 hostid prints the numeric identifier (in hexadecimal) for
225 id displays the current user and group ID names.
227 config CONFIG_INSTALL
231 Copy files and set attributes.
237 length is used to print out the length of a specified string.
243 ln is used to create hard or soft links between files.
245 config CONFIG_LOGNAME
249 logname is used to print the current user's login name.
255 ls is used to list the contents of directories.
257 config CONFIG_FEATURE_LS_FILETYPES
258 bool " Enable filetyping options (-p and -F)"
262 Enable the ls options (-p and -F).
264 config CONFIG_FEATURE_LS_FOLLOWLINKS
265 bool " Enable symlinks dereferencing (-L)"
269 Enable the ls option (-L).
271 config CONFIG_FEATURE_LS_RECURSIVE
272 bool " Enable recursion (-R)"
276 Enable the ls option (-R).
278 config CONFIG_FEATURE_LS_SORTFILES
279 bool " Sort the file names"
283 Allow ls to sort file names alphabetically.
285 config CONFIG_FEATURE_LS_TIMESTAMPS
286 bool " Show file timestamps"
290 Allow ls to display timestamps for files.
292 config CONFIG_FEATURE_LS_USERNAME
293 bool " Show username/groupnames"
297 Allow ls to display username/groupname for files.
299 config CONFIG_FEATURE_LS_COLOR
300 bool " Use color to identify file types"
304 Allow ls to use color when displaying files.
310 md5sum is used to print or check MD5 checksums.
316 mkdir is used to create directories with the specified names.
322 mkfifo is used to create FIFOs (named pipes).
323 The `mknod' program can also create FIFOs.
329 mknod is used to create FIFOs or block/character special
330 files with the specified names.
336 mv is used to move or rename files or directories.
342 nice runs a program with modified scheduling priority.
348 od is used to dump binary files in octal and other formats.
354 printf is used to format and print specified strings.
355 It's similar to `echo' except it has more options.
361 pwd is used to print the current directory.
363 config CONFIG_REALPATH
367 Return the canonicalized absolute pathname.
368 This isn't provided by GNU shellutils, but where else does it belong.
374 rm is used to remove files or directories.
380 rmdir is used to remove empty directories.
386 print a sequence of numbers
388 config CONFIG_SHA1SUM
392 Compute and check SHA1 message digest
395 bool "sleep (single integer arg with no suffix)"
398 sleep is used to pause for a specified number of seconds,
400 config CONFIG_FEATURE_FANCY_SLEEP
401 bool " Enable multiple integer args and optional time suffixes"
403 depends on CONFIG_SLEEP
405 Allow sleep to pause for specified minutes, hours, and days.
411 sort is used to sort lines of text in specified files.
413 config CONFIG_SORT_BIG
414 bool " full SuSv3 compliant sort (Support -ktcsbdfiozgM)"
416 depends on CONFIG_SORT
418 Without this, sort only supports -r, -u, and an integer version
419 of -n. Selecting this adds sort keys, floating point support, and
420 more. This adds a little over 3k to a nonstatic build on x86.
422 The SuSv3 sort standard is available at:
423 http://www.opengroup.org/onlinepubs/007904975/utilities/sort.html
429 stty is used to change and print terminal line settings.
435 checksum and count the blocks in a file
441 sync is used to flush filesystem buffers.
447 tail is used to print the last specified number of lines
450 config CONFIG_FEATURE_FANCY_TAIL
451 bool " Enable extra tail options (-q, -s, and -v)"
453 depends on CONFIG_TAIL
455 The options (-q, -s, and -v) are provided by GNU tail, but
456 are not specific in the SUSv3 standard.
462 tee is used to read from standard input and write
463 to standard output and files.
465 config CONFIG_FEATURE_TEE_USE_BLOCK_IO
466 bool " Enable block i/o (larger/faster) instead of byte i/o."
468 depends on CONFIG_TEE
470 Enable this option for a faster tee, at expense of size.
472 if CONFIG_ASH || CONFIG_HUSH || CONFIG_LASH || CONFIG_MSH
475 comment "test (forced enabled for use with shell)"
478 if !CONFIG_ASH && !CONFIG_HUSH && !CONFIG_LASH && !CONFIG_MSH
483 test is used to check file types and compare values,
484 returning an appropriate exit code. The shells (ash
485 and bash) have test builtin.
488 config CONFIG_FEATURE_TEST_64
489 bool " Extend test to 64 bit"
491 depends on CONFIG_TEST
493 Enable 64-bit support in test.
499 touch is used to create or change the access and/or
500 modification timestamp of specified files.
506 tr is used to squeeze, and/or delete characters from standard
507 input, writing to standard output.
509 if CONFIG_HUSH || CONFIG_LASH || CONFIG_MSH
512 comment "true (forced enabled for use with shell)"
515 if !CONFIG_HUSH && !CONFIG_LASH && !CONFIG_MSH
520 true returns an exit code of TRUE (0).
528 tty is used to print the name of the current terminal to
535 uname is used to print system information.
541 uniq is used to remove duplicate lines from a sorted file.
547 usleep is used to pause for a specified number of microseconds.
549 config CONFIG_UUDECODE
553 uudecode is used to decode a uuencoded file.
555 config CONFIG_UUENCODE
559 uuencode is used to uuencode a file.
565 watch is used to execute a program periodically, showing
566 output to the screen.
572 wc is used to print the number of bytes, words, and lines,
578 select CONFIG_FEATURE_U_W_TMP
580 who is used to show who is logged on.
586 whoami is used to print the username of the current
587 user id (same as id -un).
593 yes is used to repeatedly output a specific string, or
594 the default string `y'.
596 comment "Common options for cp and mv"
597 depends on CONFIG_CP || CONFIG_MV
599 config CONFIG_FEATURE_PRESERVE_HARDLINKS
600 bool " Preserve hard links"
602 depends on CONFIG_CP || CONFIG_MV
604 Allow cp and mv to preserve hard links.
606 comment "Common options for ls and more"
607 depends on CONFIG_LS || CONFIG_MORE
609 config CONFIG_FEATURE_AUTOWIDTH
610 bool " Calculate terminal & column widths"
612 depends on CONFIG_LS || CONFIG_MORE
614 This option allows utilities such as 'ls' and 'more' to determine the
615 width of the screen, which can allow them to display additional text
616 or avoid wrapping text onto the next line. If you leave this
617 disabled, your utilities will be especially primitive and will be
618 unable to determine the current screen width.
620 comment "Common options for df, du, ls"
621 depends on CONFIG_DF || CONFIG_DU || CONFIG_LS
623 config CONFIG_FEATURE_HUMAN_READABLE
624 bool " Support for human readable output (example 13k, 23M, 235G)"
626 depends on CONFIG_DF || CONFIG_DU || CONFIG_LS
628 Allow df, du, and ls to have human readable output.
630 comment "Common options for md5sum, sha1sum"
631 depends on CONFIG_MD5SUM || CONFIG_SHA1SUM
633 config CONFIG_FEATURE_MD5_SHA1_SUM_CHECK
634 bool " Enable -c, -s and -w options"
636 depends on CONFIG_MD5SUM || CONFIG_SHA1SUM
638 Enabling the -c options allows files to be checked
639 against pre-calculated hash values.
641 -s and -w are useful options when verifying checksums.