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Chet Ramey
2011-12-03 13:35:53 -05:00
parent be7d8f2da4
commit 37c41ab12b
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doc/bashref.html
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@@ -1,6 +1,6 @@
<HTML>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<!-- Created on August, 3 2004 by texi2html 1.64 -->
<!-- Created on August, 30 2004 by texi2html 1.64 -->
<!--
Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
Karl Berry <karl@freefriends.org>
@@ -33,10 +33,10 @@ Send bugs and suggestions to <texi2html@mathematik.uni-kl.de>
<H1>Bash Reference Manual</H1></P><P>
This text is a brief description of the features that are present in
the Bash shell (version 3.0, 1 August 2004)..
the Bash shell (version 3.0, 27 August 2004)..
</P><P>
This is Edition 3.0, last updated 1 August 2004,
This is Edition 3.0, last updated 27 August 2004,
of <CITE>The GNU Bash Reference Manual</CITE>,
for <CODE>Bash</CODE>, Version 3.0.
</P><P>
@@ -1750,6 +1750,10 @@ Expands to the positional parameters, starting from one. When the
expansion occurs within double quotes, each parameter expands to a
separate word. That is, <CODE>"$@"</CODE> is equivalent to
<CODE>"$1" "$2" <small>...</small></CODE>.
If the double-quoted expansion occurs within a word, the expansion of
the first parameter is joined with the beginning part of the original
word, and the expansion of the last parameter is joined with the last
part of the original word.
When there are no positional parameters, <CODE>"$@"</CODE> and
<CODE>$@</CODE>
expand to nothing (i.e., they are removed).
@@ -6980,6 +6984,10 @@ If the <VAR>file</VAR> argument to one of the primaries is one of
descriptor 0, 1, or 2, respectively, is checked.
</P><P>
Unless otherwise specified, primaries that operate on files follow symbolic
links and operate on the target of the link, rather than the link itself.
</P><P>
<DL COMPACT>
<DT><CODE>-a <VAR>file</VAR></CODE>
<DD>True if <VAR>file</VAR> exists.
@@ -7406,12 +7414,18 @@ The braces are required to avoid
conflicts with the shell's filename expansion operators. If the
<VAR>subscript</VAR> is <SAMP>`@'</SAMP> or <SAMP>`*'</SAMP>, the word expands to all members
of the array <VAR>name</VAR>. These subscripts differ only when the word
appears within double quotes. If the word is double-quoted,
appears within double quotes.
If the word is double-quoted,
<CODE>${name[*]}</CODE> expands to a single word with
the value of each array member separated by the first character of the
<CODE>IFS</CODE> variable, and <CODE>${name[@]}</CODE> expands each element of
<VAR>name</VAR> to a separate word. When there are no array members,
<CODE>${name[@]}</CODE> expands to nothing. This is analogous to the
<CODE>${name[@]}</CODE> expands to nothing.
If the double-quoted expansion occurs within a word, the expansion of
the first parameter is joined with the beginning part of the original
word, and the expansion of the last parameter is joined with the last
part of the original word.
This is analogous to the
expansion of the special parameters <SAMP>`@'</SAMP> and <SAMP>`*'</SAMP>.
<CODE>${#name[</CODE><VAR>subscript</VAR><CODE>]}</CODE> expands to the length of
<CODE>${name[</CODE><VAR>subscript</VAR><CODE>]}</CODE>.
@@ -7995,6 +8009,18 @@ indication of whether or not a history entry has been modified.
The default editor used by <CODE>fc</CODE> is <CODE>ed</CODE>.
<P>
<LI>
The <CODE>type</CODE> and <CODE>command</CODE> builtins will not report a non-executable
file as having been found, though the shell will attempt to execute such a
file if it is the only so-named file found in <CODE>$PATH</CODE>.
<P>
<LI>
When the <CODE>xpg_echo</CODE> option is enabled, Bash does not attempt to interpret
any arguments to <CODE>echo</CODE> as options. Each argument is displayed, after
escape characters are converted.
<P>
</OL>
<P>
@@ -8193,14 +8219,14 @@ Bash does not print another warning, and the stopped jobs are terminated.
<DT><CODE>bg</CODE>
<DD><A NAME="IDX273"></A>
<TABLE><tr><td>&nbsp;</td><td class=example><pre>bg [<VAR>jobspec</VAR>]
</pre></td></tr></table>Resume the suspended job <VAR>jobspec</VAR> in the background, as if it
<TABLE><tr><td>&nbsp;</td><td class=example><pre>bg [<VAR>jobspec</VAR> <small>...</small>]
</pre></td></tr></table>Resume each suspended job <VAR>jobspec</VAR> in the background, as if it
had been started with <SAMP>`&#38;'</SAMP>.
If <VAR>jobspec</VAR> is not supplied, the current job is used.
The return status is zero unless it is run when job control is not
enabled, or, when run with job control enabled, if <VAR>jobspec</VAR> was
not found or <VAR>jobspec</VAR> specifies a job that was started without
job control.
enabled, or, when run with job control enabled, if the last
<VAR>jobspec</VAR> was not found or the last <VAR>jobspec</VAR> specifies a job
that was started without job control.
<P>
<DT><CODE>fg</CODE>
@@ -15025,7 +15051,7 @@ to permit their use in free software.
<TD VALIGN="MIDDLE" ALIGN="LEFT">[<A HREF="bashref.html#SEC_About"> ? </A>]</TD>
</TR></TABLE>
<H1>About this document</H1>
This document was generated by <I>Chet Ramey</I> on <I>August, 3 2004</I>
This document was generated by <I>Chet Ramey</I> on <I>August, 30 2004</I>
using <A HREF="http://www.mathematik.uni-kl.de/~obachman/Texi2html
"><I>texi2html</I></A>
<P></P>
@@ -15187,7 +15213,7 @@ the following structure:
<BR>
<FONT SIZE="-1">
This document was generated
by <I>Chet Ramey</I> on <I>August, 3 2004</I>
by <I>Chet Ramey</I> on <I>August, 30 2004</I>
using <A HREF="http://www.mathematik.uni-kl.de/~obachman/Texi2html
"><I>texi2html</I></A>