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Full Discussion: copy *. does not work in function
Top Forums UNIX for Dummies Questions & Answers copy *. does not work in function Post 302550611 by yazu on Friday 26th of August 2011 10:15:52 AM
Old 08-26-2011
Fileglob (things like '*.txt') is not an argument. The shell expands it to all files matching a pattern and then all these files become arguments to a command.
Look at:
Code:
sh -x -c 'echo *'

and you can see what really echo gets as arguments.
And how avoid? In your example - just use "cp". In more realistic example - call a function with necessary arguments at the front of argument list and work with optional arguments using standard shell technique - $@ array, for loop, shift builtin.
 

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LEARN ABOUT REDHAT

extutils::command

ExtUtils::Command(3pm)					 Perl Programmers Reference Guide				    ExtUtils::Command(3pm)

NAME

       ExtUtils::Command - utilities to replace common UNIX commands in Makefiles etc.

SYNOPSIS

	 perl -MExtUtils::Command -e cat files... > destination
	 perl -MExtUtils::Command -e mv source... destination
	 perl -MExtUtils::Command -e cp source... destination
	 perl -MExtUtils::Command -e touch files...
	 perl -MExtUtils::Command -e rm_f file...
	 perl -MExtUtils::Command -e rm_rf directories...
	 perl -MExtUtils::Command -e mkpath directories...
	 perl -MExtUtils::Command -e eqtime source destination
	 perl -MExtUtils::Command -e chmod mode files...
	 perl -MExtUtils::Command -e test_f file

DESCRIPTION

       The module is used to replace common UNIX commands.  In all cases the functions work from @ARGV rather than taking arguments.  This makes
       them easier to deal with in Makefiles.

	 perl -MExtUtils::Command -e some_command some files to work on

       NOT

	 perl -MExtUtils::Command -e 'some_command qw(some files to work on)'

       Filenames with * and ? will be glob expanded.

       cat Concatenates all files mentioned on command line to STDOUT.

       eqtime src dst
	   Sets modified time of dst to that of src

       rm_rf files....
	   Removes directories - recursively (even if readonly)

       rm_f files....
	   Removes files (even if readonly)

       touch files ...
	   Makes files exist, with current timestamp

       mv source... destination
	   Moves source to destination.  Multiple sources are allowed if destination is an existing directory.

       cp source... destination
	   Copies source to destination.  Multiple sources are allowed if destination is an existing directory.

       chmod mode files...
	   Sets UNIX like permissions 'mode' on all the files.

       mkpath directory...
	   Creates directory, including any parent directories.

       test_f file
	   Tests if a file exists

BUGS

       Should probably be Auto/Self loaded.

SEE ALSO

       ExtUtils::MakeMaker, ExtUtils::MM_Unix, ExtUtils::MM_Win32

AUTHOR

       Nick Ing-Simmons <nick@ni-s.u-net.com>.

perl v5.8.0							    2002-06-01						    ExtUtils::Command(3pm)
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