1TR(1)                            User Commands                           TR(1)
2
3
4

NAME

6       tr - translate or delete characters
7

SYNOPSIS

9       tr [OPTION]... SET1 [SET2]
10

DESCRIPTION

12       Translate, squeeze, and/or delete characters from standard input, writ‐
13       ing to standard output.
14
15       -c, -C, --complement
16              use the complement of SET1
17
18       -d, --delete
19              delete characters in SET1, do not translate
20
21       -s, --squeeze-repeats
22              replace each input sequence of  a  repeated  character  that  is
23              listed in SET1 with a single occurrence of that character
24
25       -t, --truncate-set1
26              first truncate SET1 to length of SET2
27
28       --help display this help and exit
29
30       --version
31              output version information and exit
32
33       SETs  are  specified  as  strings  of characters.  Most represent them‐
34       selves.  Interpreted sequences are:
35
36       \NNN   character with octal value NNN (1 to 3 octal digits)
37
38       \\     backslash
39
40       \a     audible BEL
41
42       \b     backspace
43
44       \f     form feed
45
46       \n     new line
47
48       \r     return
49
50       \t     horizontal tab
51
52       \v     vertical tab
53
54       CHAR1-CHAR2
55              all characters from CHAR1 to CHAR2 in ascending order
56
57       [CHAR*]
58              in SET2, copies of CHAR until length of SET1
59
60       [CHAR*REPEAT]
61              REPEAT copies of CHAR, REPEAT octal if starting with 0
62
63       [:alnum:]
64              all letters and digits
65
66       [:alpha:]
67              all letters
68
69       [:blank:]
70              all horizontal whitespace
71
72       [:cntrl:]
73              all control characters
74
75       [:digit:]
76              all digits
77
78       [:graph:]
79              all printable characters, not including space
80
81       [:lower:]
82              all lower case letters
83
84       [:print:]
85              all printable characters, including space
86
87       [:punct:]
88              all punctuation characters
89
90       [:space:]
91              all horizontal or vertical whitespace
92
93       [:upper:]
94              all upper case letters
95
96       [:xdigit:]
97              all hexadecimal digits
98
99       [=CHAR=]
100              all characters which are equivalent to CHAR
101
102       Translation occurs if -d is not given and both SET1  and  SET2  appear.
103       -t  may  be  used only when translating.  SET2 is extended to length of
104       SET1 by repeating its last character as necessary.   Excess  characters
105       of  SET2  are  ignored.  Only [:lower:] and [:upper:] are guaranteed to
106       expand in ascending order; used in SET2  while  translating,  they  may
107       only  be used in pairs to specify case conversion.  -s uses SET1 if not
108       translating nor deleting; else squeezing uses  SET2  and  occurs  after
109       translation or deletion.
110

AUTHOR

112       Written by Jim Meyering.
113

REPORTING BUGS

115       Report tr bugs to bug-coreutils@gnu.org
116       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
117       General help using GNU software: <http://www.gnu.org/gethelp/>
118       Report tr translation bugs to <http://translationproject.org/team/>
119

121       Copyright  ©  2010  Free Software Foundation, Inc.  License GPLv3+: GNU
122       GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
123       This is free software: you are free  to  change  and  redistribute  it.
124       There is NO WARRANTY, to the extent permitted by law.
125

SEE ALSO

127       The  full  documentation  for tr is maintained as a Texinfo manual.  If
128       the info and tr programs are properly installed at your site, the  com‐
129       mand
130
131              info coreutils 'tr invocation'
132
133       should give you access to the complete manual.
134
135
136
137GNU coreutils 8.5                November 2010                           TR(1)
Impressum