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<title>tail(1) - Plan 9 from User Space</title>
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<tr><td width=20><td><b>TAIL(1)</b><td align=right><b>TAIL(1)</b>
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<p><font size=+1><b>NAME </b></font><br>
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tail – deliver the last part of a file<br>
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<p><font size=+1><b>SYNOPSIS </b></font><br>
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<tt><font size=+1>tail</font></tt> [ <tt><font size=+1>+−</font></tt><i>number</i>[<tt><font size=+1>lbc</font></tt>][<tt><font size=+1>rf</font></tt>] ] [ <i>file</i> ]
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<tt><font size=+1>tail</font></tt> [ <tt><font size=+1>−fr</font></tt> ] [ <tt><font size=+1>−n</font></tt> <i>nlines</i> ] [ <tt><font size=+1>−c</font></tt> <i>nbytes</i> ] [ <i>file</i> ]<br>
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<p><font size=+1><b>DESCRIPTION </b></font><br>
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<i>Tail</i> copies the named file to the standard output beginning at
a designated place. If no file is named, the standard input is
copied.
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Copying begins at position <tt><font size=+1>+</font></tt><i>number</i> measured from the beginning,
or <tt><font size=+1>−</font></tt><i>number</i> from the end of the input. <i>Number</i> is counted in lines,
1K blocks or bytes, according to the appended flag <tt><font size=+1>l</font></tt>, <tt><font size=+1>b</font></tt>, or <tt><font size=+1>c</font></tt>.
Default is <tt><font size=+1>−10l</font></tt> (ten ell).
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The further flag <tt><font size=+1>r</font></tt> causes tail to print lines from the end of
the file in reverse order; <tt><font size=+1>f</font></tt> (follow) causes <i>tail</i>, after printing
to the end, to keep watch and print further data as it appears.
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The second syntax is that promulgated by POSIX, where the <i>numbers</i>
rather than the options are signed.<br>
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<p><font size=+1><b>EXAMPLES </b></font><br>
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<tt><font size=+1>tail file<br>
</font></tt>
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Print the last 10 lines of a file.<br>
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<tt><font size=+1>tail +0f file<br>
</font></tt>
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Print a file, and continue to watch data accumulate as it grows.<br>
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<tt><font size=+1>sed 10q file<br>
</font></tt>
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Print the first 10 lines of a file.<br>
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<p><font size=+1><b>SOURCE </b></font><br>
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<tt><font size=+1>/usr/local/plan9/src/cmd/tail.c<br>
</font></tt>
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<p><font size=+1><b>BUGS </b></font><br>
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Tails relative to the end of the file are treasured up in a buffer,
and thus are limited in length.
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According to custom, option <tt><font size=+1>+</font></tt><i>number</i> counts lines from 1, and counts
blocks and bytes from 0.
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<i>Tail</i> is ignorant of UTF.<br>
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<!-- TRAILER -->
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<center>
<a href="../../"><img src="../../dist/spaceglenda100.png" alt="Space Glenda" border=1></a>
</center>
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<!-- TRAILER -->
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