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TR
!!!TR
NAME
SYNOPSIS
DESCRIPTION
AUTHOR
REPORTING BUGS
COPYRIGHT
SEE ALSO
----
!!NAME


tr - translate or delete characters
!!SYNOPSIS


__tr__ [[''OPTION'']... ''SET1''
[[''SET2'']
!!DESCRIPTION


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


__-c__, __--complement__


first complement SET1


__-d__, __--delete__


delete characters in SET1, do not translate


__-s__, __--squeeze-repeats__


replace sequence of characters with one


__-t__, __--truncate-set1__


first truncate SET1 to length of SET2


__--help__


display this help and exit


__--version__


output version information and exit


SETs are specified as strings of characters. Most represent
themselves. Interpreted 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


CHAR1-CHAR2


all characters from CHAR1 to CHAR2 in ascending
order


[[CHAR1-CHAR2]


same as CHAR1-CHAR2, if both SET1 and SET2 use
this


[[CHAR*]


in SET2, copies of CHAR until length of SET1


[[CHAR*REPEAT]


REPEAT copies of CHAR, REPEAT octal if starting with
0


[[:alnum:]


all letters and digits


[[:alpha:]


all letters


[[:blank:]


all horizontal whitespace


[[:cntrl:]


all control characters


[[:digit:]


all digits


[[:graph:]


all printable characters, not including space


[[:lower:]


all lower case letters


[[:print:]


all printable characters, including space


[[:punct:]


all punctuation characters


[[:space:]


all horizontal or vertical whitespace


[[:upper:]


all upper case letters


[[:xdigit:]


all hexadecimal digits


[[=CHAR=]


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.
!!AUTHOR


Written by Jim Meyering.
!!REPORTING BUGS


Report bugs to
!!COPYRIGHT


Copyright 1999 Free Software Foundation, Inc.
This is free software; see the source for copying
conditions. There is NO warranty; not even for
MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.
!!SEE ALSO


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 tr__


should give you access to the complete manual.
----

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Last edited on Monday, June 3, 2002 6:51:15 pm by "perry"

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