tr.1

Unix操作系统minix 2.0源码

.TH TR 1
.SH NAME
tr \- translate character codes
.SH SYNOPSIS
\fBtr\fR [\fB\-cds\fR]\fR [\fIstring1\fR] [\fIstring2\fR]\fR
.br
.de FL
.TP
\\fB\\$1\\fR
\\$2
..
.de EX
.TP 20
\\fB\\$1\\fR
# \\$2
..
.SH OPTIONS
.FL "\-c" "Complement the set of characters in \fIstring1\fR"
.FL "\-d" "Delete all characters specified in \fIstring1\fR"
.FL "\-s" "Squeeze all runs of characters in \fIstring1\fR to one character"
.SH EXAMPLES
.EX "tr \(fm[A\-Z]\(fm \(fm[a\-z]\(fm <x >y     " "Convert upper case to lower case"
.EX "tr \-d \(fm0123456789\(fm <f1 >f2  " "Delete all digits from \fIf1\fR"
.SH DESCRIPTION
.PP
.I Tr
performs simple character translation.
When no flag is specified, each character in 
.I string1
is mapped onto the corresponding character in
.I string2 .