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| author | Chet Ramey <chet.ramey@case.edu> | 2011-12-12 22:01:40 -0500 |
|---|---|---|
| committer | Chet Ramey <chet.ramey@case.edu> | 2011-12-12 22:01:40 -0500 |
| commit | 7d92f73f39072f1d6888f41c90cd8bb47d28b489 (patch) | |
| tree | 552c39af6a2042c80ac5bc8e552520334f6d2c7c /doc/bashref.html | |
| parent | 3d35553ad4469d6c48ee27e87cb8bb3cc3628bb2 (diff) | |
| download | bash-7d92f73f39072f1d6888f41c90cd8bb47d28b489.tar.gz | |
commit bash-20100701 snapshot
Diffstat (limited to 'doc/bashref.html')
| -rw-r--r-- | doc/bashref.html | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/doc/bashref.html b/doc/bashref.html index a9d26a23..d2f2efd7 100644 --- a/doc/bashref.html +++ b/doc/bashref.html @@ -1,6 +1,6 @@ <HTML> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> -<!-- Created on June, 7 2010 by texi2html 1.64 --> +<!-- Created on June, 29 2010 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 4.1, 30 May 2010). +the Bash shell (version 4.1, 12 June 2010). </P><P> -This is Edition 4.1, last updated 30 May 2010, +This is Edition 4.1, last updated 12 June 2010, of <CITE>The GNU Bash Reference Manual</CITE>, for <CODE>Bash</CODE>, Version 4.1. </P><P> @@ -2332,9 +2332,13 @@ If <VAR>length</VAR> is omitted, expands to the substring of This is referred to as Substring Expansion. <P> -<VAR>length</VAR> must evaluate to a number greater than or equal to zero. If <VAR>offset</VAR> evaluates to a number less than zero, the value is used as an offset from the end of the value of <VAR>parameter</VAR>. +If <VAR>length</VAR> evaluates to a number less than zero, and <VAR>parameter</VAR> +is not <SAMP>`@'</SAMP> and not an indexed or associative array, it is interpreted +as an offset from the end of the value of <VAR>parameter</VAR> rather than +a number of characters, and the expansion is the characters between the +two offsets. If <VAR>parameter</VAR> is <SAMP>`@'</SAMP>, the result is <VAR>length</VAR> positional parameters beginning at <VAR>offset</VAR>. If <VAR>parameter</VAR> is an indexed array name subscripted @@ -5763,6 +5767,14 @@ string comparison when using the conditional command's < and > operators and the effect of interrupting a command list. <P> +<DT><CODE>compat41</CODE> +<DD>If set, Bash, when in posix mode, treats a single quote in a double-quoted +parameter expansion as a special character. The single quotes must match +(an even number) and the characters between the single quotes are considered +quoted. This is the behavior of POSIX mode through version 4.1. +The default Bash behavior remains as in previous versions. +<P> + <DT><CODE>dirspell</CODE> <DD>If set, Bash attempts spelling correction on directory names during word completion @@ -8162,8 +8174,11 @@ using the syntax </pre></td></tr></table></P><P> The <VAR>subscript</VAR> -is treated as an arithmetic expression that must evaluate to a number -greater than or equal to zero. To explicitly declare an array, use +is treated as an arithmetic expression that must evaluate to a number. +If <VAR>subscript</VAR> evaluates to a number less than zero, it is used as +an offset from one greater than the array's maximum index (so a subcript +of -1 refers to the last element of the array). +To explicitly declare an array, use <TABLE><tr><td> </td><td class=example><pre>declare -a <VAR>name</VAR> </pre></td></tr></table>The syntax <TABLE><tr><td> </td><td class=example><pre>declare -a <VAR>name</VAR>[<VAR>subscript</VAR>] @@ -16312,7 +16327,7 @@ 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>June, 7 2010</I> +This document was generated by <I>Chet Ramey</I> on <I>June, 29 2010</I> using <A HREF="http://www.mathematik.uni-kl.de/~obachman/Texi2html "><I>texi2html</I></A> <P></P> @@ -16474,7 +16489,7 @@ the following structure: <BR> <FONT SIZE="-1"> This document was generated -by <I>Chet Ramey</I> on <I>June, 7 2010</I> +by <I>Chet Ramey</I> on <I>June, 29 2010</I> using <A HREF="http://www.mathematik.uni-kl.de/~obachman/Texi2html "><I>texi2html</I></A> |