55 lines
1015 B
Groff
55 lines
1015 B
Groff
.TH length "" "" "/rdb Command"
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.PC "Return the length of its argument or input file"
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\fBlength [\fIstring\fB] [< \fIfile\fB]\fR
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.PP
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.II "length of string"
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.II "string^length"
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The command
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.B length
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outputs the number of characters in its first argument.
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If there
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is no argument, it reads the standard input.
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.PP
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Because
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.B length
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counts only its first argument, you must put quotation marks
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around all of the words on the command line to make them one argument.
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.PP
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.II wc
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.B length
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uses
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.B "wc -c"
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to do the counting.
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.SH Example
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Here we find the length of a string and a file.
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.DM
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length aA1
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.DE
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.PP
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This returns \fB3\fR.
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.PP
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The next command
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.DM
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length 'word1 word2'
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.DE
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.PP
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returns \fB11\fR \(em that is, the length of
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.B word1
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plus
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.B word2
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plus the space between them.
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.PP
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The final example measures the number of characters in file
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.BR length.1 :
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.DM
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length < length.1
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.DE
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.PP
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Note that you need must quote strings if they have spaces or tabs in them.
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.SH "See Also"
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COHERENT Lexicon:
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.B
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wc
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.R
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.SO length
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