TR(1) - phpMan

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TR(1)                            User Commands                           TR(1)

       tr - translate or delete characters

       tr [OPTION]... SET1 [SET2]

       Translate,  squeeze, and/or delete characters from standard input, writing to stan-
       dard output.

       -c, -C, --complement
              use the complement of SET1

       -d, --delete
              delete characters in SET1, do not translate

       -s, --squeeze-repeats
              replace each input sequence of a repeated character that is listed  in  SET1
              with a single occurrence of that character

       -t, --truncate-set1
              first truncate SET1 to length of SET2

       --help display this help and exit

              output version information and exit

       SETs  are  specified  as strings of characters.  Most represent themselves.  Inter-
       preted sequences are:

       \NNN   character with octal value NNN (1 to 3 octal digits)

       \\     backslash

       \a     audible BEL

       \b     backspace

       \f     form feed

       \n     new line

       \r     return

       \t     horizontal tab

       \v     vertical tab

              all characters from CHAR1 to CHAR2 in ascending order

              in SET2, copies of CHAR until length of SET1

              REPEAT copies of CHAR, REPEAT octal if starting with 0

              all letters and digits

              all letters

              all horizontal whitespace

              all control characters

              all digits

              all printable characters, not including space

              all lower case letters

              all printable characters, including space

              all punctuation characters

              all horizontal or vertical whitespace

              all upper case letters

              all hexadecimal digits

              all characters which are equivalent to CHAR

       Translation occurs if -d is not given and both SET1 and SET2  appear.   -t  may  be
       used  only  when  translating.  SET2 is extended to length of SET1 by repeating its
       last character  as  necessary.   Excess  characters  of  SET2  are  ignored.   Only
       [:lower:]  and  [:upper:] are guaranteed to expand in ascending order; used in SET2
       while translating, they may only be used in pairs to specify case  conversion.   -s
       uses  SET1  if  not  translating  nor deleting; else squeezing uses SET2 and occurs
       after translation or deletion.

       Written by Jim Meyering.

       Report tr bugs to bug-coreutils AT
       GNU coreutils home page: <>
       General help using GNU software: <>
       Report tr translation bugs to <>

       Copyright (C) 2010 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version  3
       or later <>.
       This  is  free  software:  you are free to change and redistribute it.  There is NO
       WARRANTY, to the extent permitted by law.

       The full documentation for tr is maintained as a Texinfo manual.  If the  info  and
       tr programs are properly installed at your site, the command

              info coreutils 'tr invocation'

       should give you access to the complete manual.

GNU coreutils 8.4                 March 2017                             TR(1)

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