1TR(1)                            User Commands                           TR(1)
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NAME

6       tr - translate or delete characters
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SYNOPSIS

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

12       Translate, squeeze, and/or delete characters from standard input, writ‐
13       ing to standard output.
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15       -c, -C, --complement
16              use the complement of SET1
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18       -d, --delete
19              delete characters in SET1, do not translate
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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
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25       -t, --truncate-set1
26              first truncate SET1 to length of SET2
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28       --help display this help and exit
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30       --version
31              output version information and exit
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33       SETs  are  specified  as  strings  of characters.  Most represent them‐
34       selves.  Interpreted sequences are:
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36       \NNN   character with octal value NNN (1 to 3 octal digits)
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38       \\     backslash
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40       \a     audible BEL
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42       \b     backspace
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44       \f     form feed
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46       \n     new line
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48       \r     return
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50       \t     horizontal tab
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52       \v     vertical tab
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54       CHAR1-CHAR2
55              all characters from CHAR1 to CHAR2 in ascending order
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57       [CHAR*]
58              in SET2, copies of CHAR until length of SET1
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60       [CHAR*REPEAT]
61              REPEAT copies of CHAR, REPEAT octal if starting with 0
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63       [:alnum:]
64              all letters and digits
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66       [:alpha:]
67              all letters
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69       [:blank:]
70              all horizontal whitespace
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72       [:cntrl:]
73              all control characters
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75       [:digit:]
76              all digits
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78       [:graph:]
79              all printable characters, not including space
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81       [:lower:]
82              all lower case letters
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84       [:print:]
85              all printable characters, including space
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87       [:punct:]
88              all punctuation characters
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90       [:space:]
91              all horizontal or vertical whitespace
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93       [:upper:]
94              all upper case letters
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96       [:xdigit:]
97              all hexadecimal digits
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99       [=CHAR=]
100              all characters which are equivalent to CHAR
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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.
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AUTHOR

112       Written by Jim Meyering.
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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/>
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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'
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133       should give you access to the complete manual.
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137GNU coreutils 8.4                  June 2018                             TR(1)
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