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Top Forums Shell Programming and Scripting Question about special variables: "-" and "$_" Post 302405984 by cfajohnson on Sunday 21st of March 2010 08:02:23 AM
Old 03-21-2010
Quote:
Originally Posted by honglus
both ksh/bash support this 2 special variables, Is there any document for reference?

1) "-" is $OLDPWD

$- contains the current shell options.

-, as an argument to cd, returns to the previously active directory.
Quote:
2) "$_" is last argument of previous command.

There are part of all POSIX shells (and the cd command). See the man page for any such shell (the Special Parameters section of the bash man page) or the POSIX specs at Shell and Utilities

Last edited by cfajohnson; 03-21-2010 at 09:08 AM..
 

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xmlindent(1)															      xmlindent(1)

NAME
xmlindent - XML stream reformatter SYNTAX
xmlindent [-o output file] [-i indent level] [-l max columns] [-n newline position] [-t] [-c] [-f] [-w] [-h] [-v] DESCRIPTION
XML Indent is a XML stream reformatter written in ANSI C. It is analogous to GNU indent. OPTIONS
-o output file Write indented XML to output file -i indent level Indent each level indent level spaces deeper -l max columns Wrap lines longer than max columns -t Use tabs instead of spaces -nas Suppress newline after start-tag -nae Suppress newline after end-tag -nbs Suppress newline before start-tag -nbe Suppress newline before end-tag -f Force newline on elements without children -w Overwrite original file -v Show version -h Show command line help AUTHORS
Pekka Enberg <penberg@iki.fi> Thomas Fischer <th.fischer@gmx.net> (man page) SEE ALSO
indent(1) Thomas Fischer 0.2.17 xmlindent(1)
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