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Chet Ramey
2019-06-24 09:00:06 -04:00
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doc/bashref.html
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@@ -1,9 +1,9 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<!-- This text is a brief description of the features that are present in
the Bash shell (version 5.0, 12 June 2019).
the Bash shell (version 5.0, 21 June 2019).
This is Edition 5.0, last updated 12 June 2019,
This is Edition 5.0, last updated 21 June 2019,
of The GNU Bash Reference Manual,
for Bash, Version 5.0.
@@ -284,10 +284,10 @@ Next: <a href="#Introduction" accesskey="n" rel="next">Introduction</a>, Previou
<h1 class="top">Bash Features</h1>
<p>This text is a brief description of the features that are present in
the Bash shell (version 5.0, 12 June 2019).
the Bash shell (version 5.0, 21 June 2019).
The Bash home page is <a href="http://www.gnu.org/software/bash/">http://www.gnu.org/software/bash/</a>.
</p>
<p>This is Edition 5.0, last updated 12 June 2019,
<p>This is Edition 5.0, last updated 21 June 2019,
of <cite>The GNU Bash Reference Manual</cite>,
for <code>Bash</code>, Version 5.0.
</p>
@@ -3056,7 +3056,10 @@ Next: <a href="#Quote-Removal" accesskey="n" rel="next">Quote Removal</a>, Previ
<p>After word splitting, unless the <samp>-f</samp> option has been set
(see <a href="#The-Set-Builtin">The Set Builtin</a>), Bash scans each word for the characters
&lsquo;<samp>*</samp>&rsquo;, &lsquo;<samp>?</samp>&rsquo;, and &lsquo;<samp>[</samp>&rsquo;.
&lsquo;<samp>*</samp>&rsquo;, &lsquo;<samp>?</samp>&rsquo;, &lsquo;<samp>[</samp>&rsquo;,
and, under certain circumstances (e.g., when it appears in the expansion of
an unquoted shell variable),
&lsquo;<samp>\\</samp>&rsquo;.
If one of these characters appears, then the word is
regarded as a <var>pattern</var>,
and replaced with an alphabetically sorted list of
@@ -6341,6 +6344,14 @@ or when filtering possible completions as part of programmable completion.
files to expand to a null string, rather than themselves.
</p>
</dd>
<dt><code>posixglob</code></dt>
<dd><p>If set, Bash
makes words containing unquoted backslashes after expansion eligible for
filename expansion, even if they don&rsquo;t contain any other unquoted pattern
characters. This option is enabled by default and is enabled when <small>POSIX</small>
mode is enabled.
</p>
</dd>
<dt><code>progcomp</code></dt>
<dd><p>If set, the programmable completion facilities
(see <a href="#Programmable-Completion">Programmable Completion</a>) are enabled.
@@ -8441,13 +8452,16 @@ A null value evaluates to 0.
A shell variable need not have its <var>integer</var> attribute turned on
to be used in an expression.
</p>
<p>Constants with a leading 0 are interpreted as octal numbers.
<p>Integer constants follow the C language definition, without suffixes or
character constants.
Constants with a leading 0 are interpreted as octal numbers.
A leading &lsquo;<samp>0x</samp>&rsquo; or &lsquo;<samp>0X</samp>&rsquo; denotes hexadecimal. Otherwise,
numbers take the form [<var>base</var><code>#</code>]<var>n</var>, where the optional <var>base</var>
is a decimal number between 2 and 64 representing the arithmetic
base, and <var>n</var> is a number in that base.
If <var>base</var><code>#</code> is omitted, then base 10 is used.
When specifying <var>n</var>,
if a non-digit is required,
the digits greater than 9 are represented by the lowercase letters,
the uppercase letters, &lsquo;<samp>@</samp>&rsquo;, and &lsquo;<samp>_</samp>&rsquo;, in that order.
If <var>base</var> is less than or equal to 36, lowercase and uppercase
@@ -9175,6 +9189,10 @@ Bash clears the <samp>-e</samp> option in such subshells.
that exceed the number of positional parameters will result in an
error message.
</li><li> Enabling <small>POSIX</small> mode has the effect of setting the <code>posixglob</code>
option, which affects how unquoted backslashes are treated during
filename expansion (see <a href="#Filename-Expansion">Filename Expansion</a>).
</li><li> When the <code>alias</code> builtin displays alias definitions, it does not
display them with a leading &lsquo;<samp>alias </samp>&rsquo; unless the <samp>-p</samp> option
is supplied.
@@ -10928,15 +10946,15 @@ Words are composed of letters and digits.
Words are composed of letters and digits.
</p>
</dd>
<dt><code>shell-forward-word ()</code>
<a name="index-shell_002dforward_002dword-_0028_0029"></a>
<dt><code>shell-forward-word (M-C-f)</code>
<a name="index-shell_002dforward_002dword-_0028M_002dC_002df_0029"></a>
</dt>
<dd><p>Move forward to the end of the next word.
Words are delimited by non-quoted shell metacharacters.
</p>
</dd>
<dt><code>shell-backward-word ()</code>
<a name="index-shell_002dbackward_002dword-_0028_0029"></a>
<dt><code>shell-backward-word (M-C-b)</code>
<a name="index-shell_002dbackward_002dword-_0028M_002dC_002db_0029"></a>
</dt>
<dd><p>Move back to the start of the current or previous word.
Words are delimited by non-quoted shell metacharacters.
@@ -11302,8 +11320,8 @@ Word boundaries are the same as <code>forward-word</code>.
Word boundaries are the same as <code>backward-word</code>.
</p>
</dd>
<dt><code>shell-kill-word ()</code>
<a name="index-shell_002dkill_002dword-_0028_0029"></a>
<dt><code>shell-kill-word (M-C-d)</code>
<a name="index-shell_002dkill_002dword-_0028M_002dC_002dd_0029"></a>
</dt>
<dd><p>Kill from point to the end of the current word, or if between
words, to the end of the next word.
@@ -11317,6 +11335,17 @@ Word boundaries are the same as <code>shell-forward-word</code>.
Word boundaries are the same as <code>shell-backward-word</code>.
</p>
</dd>
<dt><code>shell-transpose-words (M-C-t)</code>
<a name="index-shell_002dtranspose_002dwords-_0028M_002dC_002dt_0029"></a>
</dt>
<dd><p>Drag the word before point past the word after point,
moving point past that word as well.
If the insertion point is at the end of the line, this transposes
the last two words on the line.
Word boundaries are the same as <code>shell-forward-word</code> and
<code>shell-backward-word</code>.
</p>
</dd>
<dt><code>unix-word-rubout (C-w)</code>
<a name="index-unix_002dword_002drubout-_0028C_002dw_0029"></a>
</dt>
@@ -15459,10 +15488,11 @@ Next: <a href="#Concept-Index" accesskey="n" rel="next">Concept Index</a>, Previ
<tr><td></td><td valign="top"><a href="#index-self_002dinsert-_0028a_002c-b_002c-A_002c-1_002c-_0021_002c-_2026_0029"><code>self-insert (a, b, A, 1, !, &hellip;)</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Commands-For-Text">Commands For Text</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-set_002dmark-_0028C_002d_0040_0029"><code>set-mark (C-@)</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Miscellaneous-Commands">Miscellaneous Commands</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-shell_002dbackward_002dkill_002dword-_0028_0029"><code>shell-backward-kill-word ()</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Commands-For-Killing">Commands For Killing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-shell_002dbackward_002dword-_0028_0029"><code>shell-backward-word ()</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Commands-For-Moving">Commands For Moving</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-shell_002dbackward_002dword-_0028M_002dC_002db_0029"><code>shell-backward-word (M-C-b)</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Commands-For-Moving">Commands For Moving</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-shell_002dexpand_002dline-_0028M_002dC_002de_0029"><code>shell-expand-line (M-C-e)</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Miscellaneous-Commands">Miscellaneous Commands</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-shell_002dforward_002dword-_0028_0029"><code>shell-forward-word ()</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Commands-For-Moving">Commands For Moving</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-shell_002dkill_002dword-_0028_0029"><code>shell-kill-word ()</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Commands-For-Killing">Commands For Killing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-shell_002dforward_002dword-_0028M_002dC_002df_0029"><code>shell-forward-word (M-C-f)</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Commands-For-Moving">Commands For Moving</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-shell_002dkill_002dword-_0028M_002dC_002dd_0029"><code>shell-kill-word (M-C-d)</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Commands-For-Killing">Commands For Killing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-shell_002dtranspose_002dwords-_0028M_002dC_002dt_0029"><code>shell-transpose-words (M-C-t)</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Commands-For-Killing">Commands For Killing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-skip_002dcsi_002dsequence-_0028_0029"><code>skip-csi-sequence ()</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Miscellaneous-Commands">Miscellaneous Commands</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-start_002dkbd_002dmacro-_0028C_002dx-_0028_0029"><code>start-kbd-macro (C-x ()</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Keyboard-Macros">Keyboard Macros</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>