xref: /freebsd/bin/ls/ls.1 (revision d0b2dbfa)
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32.\"     @(#)ls.1	8.7 (Berkeley) 7/29/94
33.\" $FreeBSD$
34.\"
35.Dd July 18, 2023
36.Dt LS 1
37.Os
38.Sh NAME
39.Nm ls
40.Nd list directory contents
41.Sh SYNOPSIS
42.Nm
43.Op Fl ABCFGHILPRSTUWZabcdfghiklmnopqrstuvwxy1\&,
44.Op Fl -color Ns = Ns Ar when
45.Op Fl D Ar format
46.Op Ar
47.Sh DESCRIPTION
48For each operand that names a
49.Ar file
50of a type other than
51directory,
52.Nm
53displays its name as well as any requested,
54associated information.
55For each operand that names a
56.Ar file
57of type directory,
58.Nm
59displays the names of files contained
60within that directory, as well as any requested, associated
61information.
62.Pp
63If no operands are given, the contents of the current
64directory are displayed.
65If more than one operand is given,
66non-directory operands are displayed first; directory
67and non-directory operands are sorted separately and in
68lexicographical order.
69.Pp
70The following options are available:
71.Bl -tag -width indent
72.It Fl A
73Include directory entries whose names begin with a
74dot
75.Pq Sq Pa \&.
76except for
77.Pa \&.
78and
79.Pa .. .
80Automatically set for the super-user unless
81.Fl I
82is specified.
83.It Fl B
84Force printing of non-printable characters (as defined by
85.Xr ctype 3
86and current locale settings) in file names as
87.Li \e Ns Va xxx ,
88where
89.Va xxx
90is the numeric value of the character in octal.
91This option is not defined in
92.St -p1003.1-2008 .
93.It Fl C
94Force multi-column output; this is the default when output is to a terminal.
95.It Fl D Ar format
96When printing in the long
97.Pq Fl l
98format, use
99.Ar format
100to format the date and time output.
101The argument
102.Ar format
103is a string used by
104.Xr strftime 3 .
105Depending on the choice of format string, this may result in a
106different number of columns in the output.
107This option overrides the
108.Fl T
109option.
110This option is not defined in
111.St -p1003.1-2008 .
112.It Fl F
113Display a slash
114.Pq Ql /
115immediately after each pathname that is a directory,
116an asterisk
117.Pq Ql *
118after each that is executable,
119an at sign
120.Pq Ql @
121after each symbolic link,
122an equals sign
123.Pq Ql =
124after each socket,
125a percent sign
126.Pq Ql %
127after each whiteout,
128and a vertical bar
129.Pq Ql \&|
130after each that is a
131.Tn FIFO .
132.It Fl G
133Enable colorized output.
134This option is equivalent to defining
135.Ev CLICOLOR
136or
137.Ev COLORTERM
138in the environment and setting
139.Fl -color Ns = Ns Ar auto .
140(See below.)
141This functionality can be compiled out by removing the definition of
142.Ev COLORLS .
143This option is not defined in
144.St -p1003.1-2008 .
145.It Fl H
146Symbolic links on the command line are followed.
147This option is assumed if
148none of the
149.Fl F , d ,
150or
151.Fl l
152options are specified.
153.It Fl I
154Prevent
155.Fl A
156from being automatically set for the super-user.
157This option is not defined in
158.St -p1003.1-2008 .
159.It Fl L
160If argument is a symbolic link, list the file or directory the link references
161rather than the link itself.
162This option cancels the
163.Fl P
164option.
165.It Fl P
166If argument is a symbolic link, list the link itself rather than the
167object the link references.
168This option cancels the
169.Fl H
170and
171.Fl L
172options.
173.It Fl R
174Recursively list subdirectories encountered.
175.It Fl S
176Sort by size (largest file first) before sorting the operands in
177lexicographical order.
178.It Fl T
179When printing in the long
180.Pq Fl l
181format, display complete time information for the file, including
182month, day, hour, minute, second, and year.
183The
184.Fl D
185option gives even more control over the output format.
186This option is not defined in
187.St -p1003.1-2008 .
188.It Fl U
189Use time when file was created for sorting or printing.
190This option is not defined in
191.St -p1003.1-2008 .
192.It Fl W
193Display whiteouts when scanning directories.
194This option is not defined in
195.St -p1003.1-2008 .
196.It Fl Z
197Display each file's MAC label; see
198.Xr maclabel 7 .
199This option is not defined in
200.St -p1003.1-2008 .
201.It Fl a
202Include directory entries whose names begin with a
203dot
204.Pq Sq Pa \&. .
205.It Fl b
206As
207.Fl B ,
208but use
209.Tn C
210escape codes whenever possible.
211This option is not defined in
212.St -p1003.1-2008 .
213.It Fl c
214Use time when file status was last changed for sorting or printing.
215.It Fl -color Ns = Ns Ar when
216Output colored escape sequences based on
217.Ar when ,
218which may be set to either
219.Cm always ,
220.Cm auto ,
221or
222.Cm never .
223.Pp
224.Cm always
225will make
226.Nm
227always output color.
228If
229.Ev TERM
230is unset or set to an invalid terminal, then
231.Nm
232will fall back to explicit
233.Tn ANSI
234escape sequences without the help of
235.Xr termcap 5 .
236.Cm always
237is the default if
238.Fl -color
239is specified without an argument.
240.Pp
241.Cm auto
242will make
243.Nm
244output escape sequences based on
245.Xr termcap 5 ,
246but only if
247.Dv stdout
248is a tty and either the
249.Fl G
250flag is specified or the
251.Ev COLORTERM
252environment variable is set and not empty.
253.Pp
254.Cm never
255will disable color regardless of environment variables.
256.Cm never
257is the default when neither
258.Fl -color
259nor
260.Fl G
261is specified.
262.Pp
263For compatibility with GNU coreutils,
264.Nm
265supports
266.Cm yes
267or
268.Cm force
269as equivalent to
270.Cm always ,
271.Cm no
272or
273.Cm none
274as equivalent to
275.Cm never ,
276and
277.Cm tty
278or
279.Cm if-tty
280as equivalent to
281.Cm auto .
282.It Fl d
283Directories are listed as plain files (not searched recursively).
284.It Fl f
285Output is not sorted.
286This option turns on
287.Fl a .
288It also negates the effect of the
289.Fl r ,
290.Fl S
291and
292.Fl t
293options.
294As allowed by
295.St -p1003.1-2008 ,
296this option has no effect on the
297.Fl d ,
298.Fl l ,
299.Fl R
300and
301.Fl s
302options.
303.It Fl g
304Display the long
305.Pq Fl l
306format output without the file owner's name or number.
307.It Fl h
308When used with the
309.Fl l
310option, use unit suffixes: Byte, Kilobyte, Megabyte, Gigabyte, Terabyte
311and Petabyte in order to reduce the number of digits to four or fewer
312using base 2 for sizes.
313This option is not defined in
314.St -p1003.1-2008 .
315.It Fl i
316For each file, print the file's file serial number (inode number).
317.It Fl k
318This has the same effect as setting environment variable
319.Ev BLOCKSIZE
320to 1024, except that it also nullifies any
321.Fl h
322options to its left.
323.It Fl l
324(The lowercase letter
325.Dq ell . )
326List files in the long format, as described in the
327.Sx The Long Format
328subsection below.
329.It Fl m
330Stream output format; list files across the page, separated by commas.
331.It Fl n
332Display user and group IDs numerically rather than converting to a user
333or group name in a long
334.Pq Fl l
335output.
336.It Fl o
337Include the file flags in a long
338.Pq Fl l
339output.
340This option is incompatible with
341.St -p1003.1-2008 .
342See
343.Xr chflags 1
344for a list of file flags and their meanings.
345.It Fl p
346Write a slash
347.Pq Ql /
348after each filename if that file is a directory.
349.It Fl q
350Force printing of non-graphic characters in file names as
351the character
352.Ql \&? ;
353this is the default when output is to a terminal.
354.It Fl r
355Reverse the order of the sort.
356.It Fl s
357Display the number of blocks used in the file system by each file.
358Block sizes and directory totals are handled as described in
359.Sx The Long Format
360subsection below, except (if the long format is not also requested)
361the directory totals are not output when the output is in a
362single column, even if multi-column output is requested.
363.It Fl t
364Sort by descending time modified (most recently modified first).
365If two files have the same modification timestamp, sort their names
366in ascending lexicographical order.
367The
368.Fl r
369option reverses both of these sort orders.
370.Pp
371Note that these sort orders are contradictory: the time sequence is in
372descending order, the lexicographical sort is in ascending order.
373This behavior is mandated by
374.St -p1003.2 .
375This feature can cause problems listing files stored with sequential names on
376FAT file systems, such as from digital cameras, where it is possible to have
377more than one image with the same timestamp.
378In such a case, the photos cannot be listed in the sequence in which
379they were taken.
380To ensure the same sort order for time and for lexicographical sorting, set the
381environment variable
382.Ev LS_SAMESORT
383or use the
384.Fl y
385option.
386This causes
387.Nm
388to reverse the lexicographical sort order when sorting files with the
389same modification timestamp.
390.It Fl u
391Use time of last access,
392instead of time of last modification
393of the file for sorting
394.Pq Fl t
395or printing
396.Pq Fl l .
397.It Fl v
398Sort following a natural ordering, using
399.Xr strverscmp 3
400instead of
401.Xr strcoll 3
402as the comparison function.
403E.g., files lexicographically ordered
404"bloem1", "bloem10", and "bloem9" would instead be ordered
405"bloem1", "bloem9", and "bloem10", as one would perhaps expect.
406.It Fl w
407Force raw printing of non-printable characters.
408This is the default
409when output is not to a terminal.
410This option is not defined in
411.St -p1003.1-2001 .
412.It Fl x
413The same as
414.Fl C ,
415except that the multi-column output is produced with entries sorted
416across, rather than down, the columns.
417.It Fl y
418When the
419.Fl t
420option is set, sort the alphabetical output in the same order as the time output.
421This has the same effect as setting
422.Ev LS_SAMESORT .
423See the description of the
424.Fl t
425option for more details.
426This option is not defined in
427.St -p1003.1-2001 .
428.It Fl 1
429(The numeric digit
430.Dq one . )
431Force output to be
432one entry per line.
433This is the default when
434output is not to a terminal.
435.It Fl ,
436(Comma) When the
437.Fl l
438option is set, print file sizes grouped and separated by thousands using the
439non-monetary separator returned by
440.Xr localeconv 3 ,
441typically a comma or period.
442If no locale is set, or the locale does not have a non-monetary separator, this
443option has no effect.
444This option is not defined in
445.St -p1003.1-2001 .
446.El
447.Pp
448The
449.Fl 1 , C , x ,
450and
451.Fl l
452options all override each other; the last one specified determines
453the format used.
454.Pp
455The
456.Fl c , u ,
457and
458.Fl U
459options all override each other; the last one specified determines
460the file time used.
461.Pp
462The
463.Fl S
464and
465.Fl t
466options override each other; the last one specified determines
467the sort order used.
468.Pp
469The
470.Fl B , b , w ,
471and
472.Fl q
473options all override each other; the last one specified determines
474the format used for non-printable characters.
475.Pp
476The
477.Fl H , L
478and
479.Fl P
480options all override each other (either partially or fully); they
481are applied in the order specified.
482.Pp
483By default,
484.Nm
485lists one entry per line to standard
486output; the exceptions are to terminals or when the
487.Fl C
488or
489.Fl x
490options are specified.
491.Pp
492File information is displayed with one or more
493.Ao blank Ac Ns s
494separating the information associated with the
495.Fl i , s ,
496and
497.Fl l
498options.
499.Ss The Long Format
500If the
501.Fl l
502option is given, the following information
503is displayed for each file:
504file mode,
505number of links, owner name, group name,
506MAC label,
507number of bytes in the file, abbreviated
508month, day-of-month file was last modified,
509hour file last modified, minute file last
510modified, and the pathname.
511.Pp
512If the modification time of the file is more than 6 months
513in the past or future, and the
514.Fl D
515or
516.Fl T
517are not specified,
518then the year of the last modification
519is displayed in place of the hour and minute fields.
520.Pp
521If the owner or group names are not a known user or group name,
522or the
523.Fl n
524option is given,
525the numeric ID's are displayed.
526.Pp
527If the file is a character special or block special file,
528the device number for the file is displayed in the size field.
529If the file is a symbolic link the pathname of the
530linked-to file is preceded by
531.Dq Li -> .
532.Pp
533The listing of a directory's contents is preceded
534by a labeled total number of blocks used in the file system by the files
535which are listed as the directory's contents
536(which may or may not include
537.Pa \&.
538and
539.Pa ..
540and other files which start with a dot, depending on other options).
541.Pp
542The default block size is 512 bytes.
543The block size may be set with option
544.Fl k
545or environment variable
546.Ev BLOCKSIZE .
547Numbers of blocks in the output will have been rounded up so the
548numbers of bytes is at least as many as used by the corresponding
549file system blocks (which might have a different size).
550.Pp
551The file mode printed under the
552.Fl l
553option consists of the
554entry type and the permissions.
555The entry type character describes the type of file, as
556follows:
557.Pp
558.Bl -tag -width 4n -offset indent -compact
559.It Sy \-
560Regular file.
561.It Sy b
562Block special file.
563.It Sy c
564Character special file.
565.It Sy d
566Directory.
567.It Sy l
568Symbolic link.
569.It Sy p
570.Tn FIFO .
571.It Sy s
572Socket.
573.It Sy w
574Whiteout.
575.El
576.Pp
577The next three fields
578are three characters each:
579owner permissions,
580group permissions, and
581other permissions.
582Each field has three character positions:
583.Bl -enum -offset indent
584.It
585If
586.Sy r ,
587the file is readable; if
588.Sy \- ,
589it is not readable.
590.It
591If
592.Sy w ,
593the file is writable; if
594.Sy \- ,
595it is not writable.
596.It
597The first of the following that applies:
598.Bl -tag -width 4n -offset indent
599.It Sy S
600If in the owner permissions, the file is not executable and
601set-user-ID mode is set.
602If in the group permissions, the file is not executable
603and set-group-ID mode is set.
604.It Sy s
605If in the owner permissions, the file is executable
606and set-user-ID mode is set.
607If in the group permissions, the file is executable
608and setgroup-ID mode is set.
609.It Sy x
610The file is executable or the directory is
611searchable.
612.It Sy \-
613The file is neither readable, writable, executable,
614nor set-user-ID nor set-group-ID mode, nor sticky.
615(See below.)
616.El
617.Pp
618These next two apply only to the third character in the last group
619(other permissions).
620.Bl -tag -width 4n -offset indent
621.It Sy T
622The sticky bit is set
623(mode
624.Li 1000 ) ,
625but not execute or search permission.
626(See
627.Xr chmod 1
628or
629.Xr sticky 7 . )
630.It Sy t
631The sticky bit is set (mode
632.Li 1000 ) ,
633and is searchable or executable.
634(See
635.Xr chmod 1
636or
637.Xr sticky 7 . )
638.El
639.El
640.Pp
641The next field contains a
642plus
643.Pq Ql +
644character if the file has an ACL, or a
645space
646.Pq Ql " "
647if it does not.
648The
649.Nm
650utility does not show the actual ACL;
651use
652.Xr getfacl 1
653to do this.
654.Sh ENVIRONMENT
655The following environment variables affect the execution of
656.Nm :
657.Bl -tag -width ".Ev CLICOLOR_FORCE"
658.It Ev BLOCKSIZE
659If this is set, its value, rounded up to 512 or down to a
660multiple of 512, will be used as the block size in bytes by the
661.Fl l
662and
663.Fl s
664options.
665See
666.Sx The Long Format
667subsection for more information.
668.It Ev CLICOLOR
669Use
670.Tn ANSI
671color sequences to distinguish file types.
672See
673.Ev LSCOLORS
674below.
675In addition to the file types mentioned in the
676.Fl F
677option some extra attributes (setuid bit set, etc.) are also displayed.
678The colorization is dependent on a terminal type with the proper
679.Xr termcap 5
680capabilities.
681The default
682.Dq Li cons25
683console has the proper capabilities,
684but to display the colors in an
685.Xr xterm 1 Pq Pa ports/x11/xterm ,
686for example,
687the
688.Ev TERM
689variable must be set to
690.Dq Li xterm-color .
691Other terminal types may require similar adjustments.
692Colorization
693is silently disabled if the output is not directed to a terminal
694unless the
695.Ev CLICOLOR_FORCE
696variable is defined or
697.Fl -color
698is set to
699.Dq always .
700.It Ev CLICOLOR_FORCE
701Color sequences are normally disabled if the output is not directed to
702a terminal.
703This can be overridden by setting this variable.
704The
705.Ev TERM
706variable still needs to reference a color capable terminal however
707otherwise it is not possible to determine which color sequences to
708use.
709.It Ev COLORTERM
710See description for
711.Ev CLICOLOR
712above.
713.It Ev COLUMNS
714If this variable contains a string representing a
715decimal integer, it is used as the
716column position width for displaying
717multiple-text-column output.
718The
719.Nm
720utility calculates how
721many pathname text columns to display
722based on the width provided.
723(See
724.Fl C
725and
726.Fl x . )
727.It Ev LANG
728The locale to use when determining the order of day and month in the long
729.Fl l
730format output.
731See
732.Xr environ 7
733for more information.
734.It Ev LSCOLORS
735The value of this variable describes what color to use for which
736attribute when colors are enabled with
737.Ev CLICOLOR
738or
739.Ev COLORTERM .
740This string is a concatenation of pairs of the format
741.Ar f Ns Ar b ,
742where
743.Ar f
744is the foreground color and
745.Ar b
746is the background color.
747When the background color is capitalized, the text will underlined.
748.Pp
749The color designators are as follows:
750.Pp
751.Bl -tag -width 4n -offset indent -compact
752.It Sy a
753black
754.It Sy b
755red
756.It Sy c
757green
758.It Sy d
759brown
760.It Sy e
761blue
762.It Sy f
763magenta
764.It Sy g
765cyan
766.It Sy h
767light grey
768.It Sy A
769bold or underlined black, usually shows up as dark grey
770.It Sy B
771bold or underlined red
772.It Sy C
773bold or underlined green
774.It Sy D
775bold or underlined brown, usually shows up as yellow
776.It Sy E
777bold or underlined blue
778.It Sy F
779bold or underlined magenta
780.It Sy G
781bold or underlined cyan
782.It Sy H
783bold or underlined light grey; looks like bright white
784.It Sy x
785default foreground or background
786.It Sy X
787default foreground or background, with an underline or bold
788.El
789.Pp
790Note that the above are standard
791.Tn ANSI
792colors.
793The actual display may differ
794depending on the color capabilities of the terminal in use.
795.Pp
796The order of the attributes are as follows:
797.Pp
798.Bl -enum -offset indent -compact
799.It
800directory
801.It
802symbolic link
803.It
804socket
805.It
806pipe
807.It
808executable
809.It
810block special
811.It
812character special
813.It
814executable with setuid bit set
815.It
816executable with setgid bit set
817.It
818directory writable to others, with sticky bit
819.It
820directory writable to others, without sticky bit
821.El
822.Pp
823The default is
824.Qq "exfxcxdxbxegedabagacad" ,
825i.e., blue foreground and
826default background for regular directories, black foreground and red
827background for setuid executables, etc.
828.It Ev LS_COLWIDTHS
829If this variable is set, it is considered to be a
830colon-delimited list of minimum column widths.
831Unreasonable
832and insufficient widths are ignored (thus zero signifies
833a dynamically sized column).
834Not all columns have changeable widths.
835The fields are,
836in order: inode, block count, number of links, user name,
837group name, flags, file size, file name.
838.It Ev LS_SAMESORT
839If this variable is set, the
840.Fl t
841option sorts the names of files with the same modification timestamp in the same
842sense as the time sort.
843See the description of the
844.Fl t
845option for more details.
846.It Ev TERM
847The
848.Ev CLICOLOR
849and
850.Ev COLORTERM
851functionality depends on a terminal type with color capabilities.
852.It Ev TZ
853The timezone to use when displaying dates.
854See
855.Xr environ 7
856for more information.
857.El
858.Sh EXIT STATUS
859.Ex -std
860.Sh EXAMPLES
861List the contents of the current working directory in long format:
862.Pp
863.Dl $ ls -l
864.Pp
865In addition to listing the contents of the current working directory in
866long format, show inode numbers, file flags (see
867.Xr chflags 1 ) ,
868and suffix each filename with a symbol representing its file type:
869.Pp
870.Dl $ ls -lioF
871.Pp
872List the files in
873.Pa /var/log ,
874sorting the output such that the mostly recently modified entries are
875printed first:
876.Pp
877.Dl $ ls -lt /var/log
878.Sh COMPATIBILITY
879The group field is now automatically included in the long listing for
880files in order to be compatible with the
881.St -p1003.2
882specification.
883.Sh SEE ALSO
884.Xr chflags 1 ,
885.Xr chmod 1 ,
886.Xr getfacl 1 ,
887.Xr sort 1 ,
888.Xr xterm 1 Pq Pa ports/x11/xterm ,
889.Xr localeconv 3 ,
890.Xr strcoll 3 ,
891.Xr strftime 3 ,
892.Xr strmode 3 ,
893.Xr strverscmp 3 ,
894.Xr termcap 5 ,
895.Xr maclabel 7 ,
896.Xr sticky 7 ,
897.Xr symlink 7 ,
898.Xr getfmac 8
899.Sh STANDARDS
900With the exception of options
901.Fl g , n
902and
903.Fl o ,
904the
905.Nm
906utility conforms to
907.St -p1003.1-2001
908and
909.St -p1003.1-2008 .
910The options
911.Fl B , D , G , I , T , U , W , Z , b , h , v , w , y
912and
913.Fl ,
914are non-standard extensions.
915.Pp
916The ACL support is compatible with
917.Tn IEEE
918Std\~1003.2c
919.Pq Dq Tn POSIX Ns .2c
920Draft\~17
921(withdrawn).
922.Sh HISTORY
923An
924.Nm
925command appeared in
926.At v1 .
927.Pp
928The
929.Fl v
930option was added in
931.Fx 14.0 .
932.Sh BUGS
933To maintain backward compatibility, the relationships between the many
934options are quite complex.
935.Pp
936The exception mentioned in the
937.Fl s
938option description might be a feature that was
939based on the fact that single-column output
940usually goes to something other than a terminal.
941It is debatable whether this is a design bug.
942.Pp
943.St -p1003.2
944mandates opposite sort orders for files with the same timestamp when
945sorting with the
946.Fl t
947option.
948