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108 lines
6.2 KiB
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108 lines
6.2 KiB
HTML
15 years ago
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<html lang="en">
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<title>strings - GNU Binary Utilities</title>
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<meta name="description" content="GNU Binary Utilities">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="prev" href="size.html#size" title="size">
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<link rel="next" href="strip.html#strip" title="strip">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
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2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.2
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled ``GNU Free Documentation License''.
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man end-->
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<style type="text/css"><!--
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span.sc { font-variant:small-caps }
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span.roman { font-family: serif; font-weight: normal; }
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--></style>
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</head>
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<body>
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<div class="node">
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<p>
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<a name="strings"></a>Next: <a rel="next" accesskey="n" href="strip.html#strip">strip</a>,
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Previous: <a rel="previous" accesskey="p" href="size.html#size">size</a>,
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Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a>
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<hr><br>
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</div>
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<h2 class="chapter">7 strings</h2>
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<p><a name="index-strings-106"></a><a name="index-listings-strings-107"></a><a name="index-printing-strings-108"></a><a name="index-strings_002c-printing-109"></a>
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<!-- man title strings print the strings of printable characters in files. -->
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<pre class="smallexample"> <!-- man begin SYNOPSIS strings -->
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strings [<span class="option">-afov</span>] [<span class="option">-</span><var>min-len</var>]
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[<span class="option">-n</span> <var>min-len</var>] [<span class="option">--bytes=</span><var>min-len</var>]
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[<span class="option">-t</span> <var>radix</var>] [<span class="option">--radix=</span><var>radix</var>]
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[<span class="option">-e</span> <var>encoding</var>] [<span class="option">--encoding=</span><var>encoding</var>]
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[<span class="option">-</span>] [<span class="option">--all</span>] [<span class="option">--print-file-name</span>]
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[<span class="option">-T</span> <var>bfdname</var>] [<span class="option">--target=</span><var>bfdname</var>]
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[<span class="option">--help</span>] [<span class="option">--version</span>] <var>file</var>...
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<!-- man end -->
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</pre>
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<!-- man begin DESCRIPTION strings -->
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<p>For each <var>file</var> given, <span class="sc">gnu</span> <span class="command">strings</span> prints the printable
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character sequences that are at least 4 characters long (or the number
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given with the options below) and are followed by an unprintable
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character. By default, it only prints the strings from the initialized
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and loaded sections of object files; for other types of files, it prints
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the strings from the whole file.
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<p><span class="command">strings</span> is mainly useful for determining the contents of non-text
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files.
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<!-- man end -->
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<!-- man begin OPTIONS strings -->
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<dl>
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<dt><span class="env">-a</span><dt><span class="env">--all</span><dt><span class="env">-</span><dd>Do not scan only the initialized and loaded sections of object files;
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scan the whole files.
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<br><dt><span class="env">-f</span><dt><span class="env">--print-file-name</span><dd>Print the name of the file before each string.
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<br><dt><span class="env">--help</span><dd>Print a summary of the program usage on the standard output and exit.
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<br><dt><span class="env">-</span><var>min-len</var><dt><span class="env">-n </span><var>min-len</var><dt><span class="env">--bytes=</span><var>min-len</var><dd>Print sequences of characters that are at least <var>min-len</var> characters
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long, instead of the default 4.
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<br><dt><span class="env">-o</span><dd>Like <span class="samp">-t o</span>. Some other versions of <span class="command">strings</span> have <span class="option">-o</span>
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act like <span class="samp">-t d</span> instead. Since we can not be compatible with both
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ways, we simply chose one.
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<br><dt><span class="env">-t </span><var>radix</var><dt><span class="env">--radix=</span><var>radix</var><dd>Print the offset within the file before each string. The single
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character argument specifies the radix of the offset—<span class="samp">o</span> for
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octal, <span class="samp">x</span> for hexadecimal, or <span class="samp">d</span> for decimal.
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<br><dt><span class="env">-e </span><var>encoding</var><dt><span class="env">--encoding=</span><var>encoding</var><dd>Select the character encoding of the strings that are to be found.
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Possible values for <var>encoding</var> are: <span class="samp">s</span> = single-7-bit-byte
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characters (ASCII, ISO 8859, etc., default), <span class="samp">S</span> =
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single-8-bit-byte characters, <span class="samp">b</span> = 16-bit bigendian, <span class="samp">l</span> =
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16-bit littleendian, <span class="samp">B</span> = 32-bit bigendian, <span class="samp">L</span> = 32-bit
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littleendian. Useful for finding wide character strings. (<span class="samp">l</span>
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and <span class="samp">b</span> apply to, for example, Unicode UTF-16/UCS-2 encodings).
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<br><dt><span class="env">-T </span><var>bfdname</var><dt><span class="env">--target=</span><var>bfdname</var><dd><a name="index-object-code-format-110"></a>Specify an object code format other than your system's default format.
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See <a href="Target-Selection.html#Target-Selection">Target Selection</a>, for more information.
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<br><dt><span class="env">-v</span><dt><span class="env">--version</span><dd>Print the program version number on the standard output and exit.
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</dl>
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<!-- man end -->
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</body></html>
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