96 lines
3.9 KiB
HTML
96 lines
3.9 KiB
HTML
<head>
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<title>look(1) - Plan 9 from User Space</title>
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<meta content="text/html; charset=utf-8" http-equiv=Content-Type>
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</head>
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<body bgcolor=#ffffff>
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<table border=0 cellpadding=0 cellspacing=0 width=100%>
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<tr height=10><td>
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<tr><td width=20><td>
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<tr><td width=20><td><b>LOOK(1)</b><td align=right><b>LOOK(1)</b>
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<tr><td width=20><td colspan=2>
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<br>
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<p><font size=+1><b>NAME </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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look – find lines in a sorted list<br>
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</table>
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<p><font size=+1><b>SYNOPSIS </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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<tt><font size=+1>look</font></tt> [ <tt><font size=+1>−dfnixt</font></tt><i>c</i> ] [ <i>string</i> ] [ <i>file</i> ]<br>
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</table>
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<p><font size=+1><b>DESCRIPTION </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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<i>Look</i> consults a sorted <i>file</i> and prints all lines that begin with
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<i>string</i>. It uses binary search.
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<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
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The following options are recognized. Options <tt><font size=+1>dfnt</font></tt> affect comparisons
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as in <a href="../man1/sort.html"><i>sort</i>(1)</a>.<br>
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<tt><font size=+1>−i</font></tt> Interactive. There is no <i>string</i> argument; instead <i>look</i> takes
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lines from the standard input as strings to be looked up.<br>
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<tt><font size=+1>−x</font></tt> Exact. Print only lines of the file whose key matches <i>string</i>
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exactly.<br>
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<tt><font size=+1>−d</font></tt> ‘Directory’ order: only letters, digits, tabs and blanks participate
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in comparisons.<br>
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<tt><font size=+1>−f</font></tt> Fold. Upper case letters compare equal to lower case.<br>
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<tt><font size=+1>−n</font></tt> Numeric comparison with initial string of digits, optional minus
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sign, and optional decimal point.<br>
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<tt><font size=+1>−t</font></tt>[<i>c</i>]Character <i>c</i> terminates the sort key in the <i>file</i>. By default,
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tab terminates the key. If <i>c</i> is missing the entire line comprises
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the key.
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<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
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If no <i>file</i> is specified, <tt><font size=+1>/lib/words</font></tt> is assumed, with collating
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sequence <tt><font size=+1>df</font></tt>.<br>
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</table>
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<p><font size=+1><b>FILES </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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<tt><font size=+1>/lib/words<br>
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</font></tt>
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</table>
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<p><font size=+1><b>SOURCE </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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<tt><font size=+1>/usr/local/plan9/src/cmd/look.c<br>
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</font></tt>
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</table>
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<p><font size=+1><b>SEE ALSO </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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<a href="../man1/sort.html"><i>sort</i>(1)</a>, <a href="../man1/grep.html"><i>grep</i>(1)</a><br>
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</table>
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<p><font size=+1><b>DIAGNOSTICS </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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The exit status is “<tt><font size=+1>not found</font></tt>” if no match is found, and “<tt><font size=+1>no dictionary</font></tt>”
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if <i>file</i> or the default dictionary cannot be opened.<br>
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</table>
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<td width=20>
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<tr height=20><td>
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</table>
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<!-- TRAILER -->
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<table border=0 cellpadding=0 cellspacing=0 width=100%>
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<tr height=15><td width=10><td><td width=10>
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<tr><td><td>
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<center>
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<a href="../../"><img src="../../dist/spaceglenda100.png" alt="Space Glenda" border=1></a>
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</center>
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</table>
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<!-- TRAILER -->
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</body></html>
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