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TR(1) User Commands TR(1)
NAME
tr - translate or delete characters
SYNOPSIS
tr [OPTION]... SET1 [SET2]
DESCRIPTION
Translate, squeeze, and/or delete characters from standard input, writ-
ing to standard output.
-c, -C, --complement
first complement 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
--version
output version information and exit
SETs are specified as strings of characters. Most represent them-
selves. 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
[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 <bug-coreutils [AT] gnu.org>.
COPYRIGHT
Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU
GPL version 3 or later <http://gnu.org/licenses/gpl.html>;
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
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 com-
mand
info tr
should give you access to the complete manual.
GNU coreutils 6.9.92.4-f088d-dirtyJanuary 2008 TR(1)
COMMENTS
2Disable all init scripts of a certain daemon at once on a debian machine:
for d in $(find /etc/rc*d/ -iname "*samba*"); do old=$d; new=$(echo $d | tr 'SK' 'sk'); mv -iv $old $new; done
for d in $(find /etc/rc*d/ -iname "*samba*"); do old=$d; new=$(echo $d | tr 'SK' 'sk'); mv -iv $old $new; done
2008-01-23 20:46:43
Add your comment here. Whitespace and linebreaks are preserved. URLs are linked automatically.
cat dos.txt | tr -d ‘\015’ > unix.txt