3
tail \- deliver the last part of a file
7
.BR +- \fInumber\fP[ lbc ][ rf ]
30
copies the named file to the standard output beginning
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at a designated place.
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If no file is named, the standard input is copied.
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Copying begins at position
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measured from the beginning, or
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from the end of the input.
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is counted in lines, 1K blocks or bytes,
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according to the appended flag
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causes tail to print lines from the end of the file in reverse order;
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after printing to the end, to keep watch and
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print further data as it appears.
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The second syntax is that promulgated by POSIX, where
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rather than the options are signed.
66
Print the last 10 lines of a file.
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Print a file, and continue to watch
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data accumulate as it grows.
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Print the first 10 lines of a file.
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Tails relative to the end of the file
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are treasured up in a buffer, and thus
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are limited in length.
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According to custom, option
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counts lines from 1, and counts
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blocks and bytes from 0.