GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
Debian 6.0.4(Squeeze) |
|
 |
tr(1) |
 |
tr − translate or delete characters
tr [OPTION]... SET1 [SET2]
Translate,
squeeze, and/or delete characters from standard input,
writing to standard 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 |
−−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
[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.
Written by Jim Meyering.
Report tr bugs
to bug−coreutils@gnu.org
GNU coreutils home page:
<http://www.gnu.org/software/coreutils/>
General help using GNU software:
<http://www.gnu.org/gethelp/>
Report tr translation bugs to
<http://translationproject.org/team/>
Copyright
© 2010 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.
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.
|
tr(1) | |