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sbase/tr.1
Silvan Jegen 60e972c229 Update tr.1 man page
Document the -d option and slightly change the wording of the page.

Signed-off-by: Silvan Jegen <s.jegen@gmail.com>
2014-04-27 11:42:10 +01:00

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.TH TR 1 sbase\-VERSION
.SH NAME
tr \- translate characters
.SH SYNOPSIS
.B tr
.RB [ \-d ]
.RB set1
.P
.B tr
.RB set1
.RI set2
.SH OPTIONS
.TP
.B \-d
For compatibility. If given, characters in set1 will be deleted from the input and specifying set2 will result in an error.
.SH DESCRIPTION
.B tr
reads input from stdin replacing every character in
.B set1
with the character at the same index in
.B set2.
If set2 is not given
.B tr
deletes the characters in set1 from the input.
Sets are specified as strings of characters. Almost all represent themselves but the following ones will be interpreted:
.TP
\e\e
backslash
.TP
\ea
audible BEL
.TP
\ef
form feed
.TP
\en
new line
.TP
\er
return
.TP
\et
horizontal tab
.TP
\ev
vertical tab
.PP
If set1 is longer than set2
.B tr
will map all the remaining characters to the last one in set2. In case set2 is longer than set1, the remaining characters from set2 will be ignored.
.B
.SH NOTES
.B tr
is Unicode-aware but does not yet handle character classes (e.g. [:alnum:] or [:digit:]).
.SH SEE ALSO
.IR sed(1)
.IR awk(1)