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51 lines
889 B
Groff
51 lines
889 B
Groff
.TH TR 1 sbase\-VERSION
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.SH NAME
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tr \- translate characters
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.SH SYNOPSIS
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.B tr
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.RB set1
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.RI [ set2 ]
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.SH DESCRIPTION
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.B tr
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reads input from stdin replacing every character in
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.B set1
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with the character at the same index in
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.B set2.
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If set2 is not given
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.B tr
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deletes the characters in set1 from the input.
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Sets are specified as strings of characters. Almost all represent themselves. The following ones will be interpreted:
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.TP
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\e\e
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backslash
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.TP
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\ea
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audible BEL
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.TP
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\ef
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form feed
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.TP
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\en
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new line
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.TP
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\er
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return
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.TP
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\et
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horizontal tab
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.TP
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\ev
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vertical tab
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.PP
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If set1 is longer than set2
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.B tr
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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.
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.B
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.SH NOTES
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.B tr
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is Unicode-aware but does not yet handle character classes (e.g. [:alnum:] or [:digit:]).
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.SH SEE ALSO
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.IR sed(1)
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.IR awk(1)
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