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 od is used to dump binary files in octal and other formats.
342 printf is used to format and print specified strings.
343 It's similar to `echo' except it has more options.
349 pwd is used to print the current directory.
351 config CONFIG_REALPATH
355 Return the canonicalized absolute pathname.
356 This isn't provided by GNU shellutils, but where else does it belong.
362 rm is used to remove files or directories.
368 rmdir is used to remove empty directories.
374 print a sequence of numbers
376 config CONFIG_SHA1SUM
380 Compute and check SHA1 message digest
383 bool "sleep (single integer arg with no suffix)"
386 sleep is used to pause for a specified number of seconds,
388 config CONFIG_FEATURE_FANCY_SLEEP
389 bool " Enable multiple integer args and optional time suffixes"
391 depends on CONFIG_SLEEP
393 Allow sleep to pause for specified minutes, hours, and days.
399 sort is used to sort lines of text in specified files.
405 stty is used to change and print terminal line settings.
411 sync is used to flush filesystem buffers.
417 tail is used to print the last specified number of lines
420 config CONFIG_FEATURE_FANCY_TAIL
421 bool " Enable extra tail options (-q, -s, and -v)"
423 depends on CONFIG_TAIL
425 The options (-q, -s, and -v) are provided by GNU tail, but
426 are not specific in the SUSv3 standard.
432 tee is used to read from standard input and write
433 to standard output and files.
435 config CONFIG_FEATURE_TEE_USE_BLOCK_IO
436 bool " Enable block i/o (larger/faster) instead of byte i/o."
438 depends on CONFIG_TEE
440 Enable this option for a faster tee, at expense of size.
442 if CONFIG_ASH || CONFIG_HUSH || CONFIG_LASH || CONFIG_MSH
445 comment "test (forced enabled for use with shell)"
448 if !CONFIG_ASH && !CONFIG_HUSH && !CONFIG_LASH && !CONFIG_MSH
453 test is used to check file types and compare values,
454 returning an appropriate exit code. The shells (ash
455 and bash) have test builtin.
462 touch is used to create or change the access and/or
463 modification timestamp of specified files.
469 tr is used to squeeze, and/or delete characters from standard
470 input, writing to standard output.
472 if CONFIG_HUSH || CONFIG_LASH || CONFIG_MSH
475 comment "true (forced enabled for use with shell)"
478 if !CONFIG_HUSH && !CONFIG_LASH && !CONFIG_MSH
483 true returns an exit code of TRUE (0).
491 tty is used to print the name of the current terminal to
498 uname is used to print system information.
504 uniq is used to remove duplicate lines from a sorted file.
510 usleep is used to pause for a specified number of microseconds.
512 config CONFIG_UUDECODE
516 uudecode is used to decode a uuencoded file.
518 config CONFIG_UUENCODE
522 uuencode is used to uuencode a file.
528 watch is used to execute a program periodically, showing
529 output to the screen.
535 wc is used to print the number of bytes, words, and lines,
542 who is used to show who is logged on.
548 whoami is used to print the username of the current
549 user id (same as id -un).
555 yes is used to repeatedly output a specific string, or
556 the default string `y'.
558 comment "Common options for cp and mv"
559 depends on CONFIG_CP || CONFIG_MV
561 config CONFIG_FEATURE_PRESERVE_HARDLINKS
562 bool " Preserve hard links"
564 depends on CONFIG_CP || CONFIG_MV
566 Allow cp and mv to preserve hard links.
568 comment "Common options for ls and more"
569 depends on CONFIG_LS || CONFIG_MORE
571 config CONFIG_FEATURE_AUTOWIDTH
572 bool " Calculate terminal & column widths"
574 depends on CONFIG_LS || CONFIG_MORE
576 This option allows utilities such as 'ls' and 'more' to determine the
577 width of the screen, which can allow them to display additional text
578 or avoid wrapping text onto the next line. If you leave this
579 disabled, your utilities will be especially primitive and will be
580 unable to determine the current screen width.
582 comment "Common options for df, du, ls"
583 depends on CONFIG_DF || CONFIG_DU || CONFIG_LS
585 config CONFIG_FEATURE_HUMAN_READABLE
586 bool " Support for human readable output (example 13k, 23M, 235G)"
588 depends on CONFIG_DF || CONFIG_DU || CONFIG_LS
590 Allow df, du, and ls to have human readable output.
592 comment "Common options for md5sum, sha1sum"
593 depends on CONFIG_MD5SUM || CONFIG_SHA1SUM
595 config CONFIG_FEATURE_MD5_SHA1_SUM_CHECK
596 bool " Enable -c, -s and -w options"
598 depends on CONFIG_MD5SUM || CONFIG_SHA1SUM
600 Enabling the -c options allows files to be checked
601 against pre-calculated hash values.
603 -s and -w are useful options when verifying checksums.