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Full Discussion: Perl copy vs system cp
Top Forums Shell Programming and Scripting Perl copy vs system cp Post 302383884 by m1xram on Friday 1st of January 2010 02:35:52 PM
Old 01-01-2010
spaces

The one thing I can see from your example is that the system call won't work if the files have spaces in the names but File::Copy will. That could easily be fixed but it is something you have to take into account.

Staying within Perl will probably mean that another process is not forked. The 'system' call always forks another process. That can be an advantage or a disadvantage depending on the behaviour you desire. For instance, if you wanted to copy ten files but didn't wish to wait for completion, the 'cp's could be forked asynchronously.
 

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RMADISON(1)															       RMADISON(1)

NAME
rmadison -- Remotely query the Debian archive database about packages SYNOPSIS
rmadison [OPTIONS] PACKAGE ... DESCRIPTION
dak ls queries the Debian archive database ("projectb") and displays which package version is registered per architecture/component/suite. The CGI at http://qa.debian.org/madison.php provides that service without requiring SSH access to ftp-master.debian.org or the mirror on ries.debian.org. This script, rmadison, is a command line frontend to this CGI. OPTIONS
-a, --architecture=ARCH only show info for ARCH(s) -b, --binary-type=TYPE only show info for binary TYPE -c, --component=COMPONENT only show info for COMPONENT(s) -g, --greaterorequal show buildd 'dep-wait pkg >= {highest version}' info -G, --greaterthan show buildd 'dep-wait pkg >> {highest version}' info -h, --help show this help and exit -s, --suite=SUITE only show info for this suite -S, --source-and-binary show info for the binary children of source pkgs -t, --time show projectb snapshot and reload time (not supported by all archives) -u, --url=URL[,URL ...] use URL for the query. Supported shorthands are debian or qa http://qa.debian.org/madison.php bpo http://backports.debian.org/cgi-bin/madison.cgi debug http://debug.debian.net/cgi-bin/madison.cgi ubuntu http://people.canonical.com/~ubuntu-archive/madison.cgi udd http://qa.debian.org/cgi-bin/madison.cgi See the RMADISON_URL_MAP_ variable below for a method to add new shorthands. --version show version and exit --no-conf, --noconf don't read the devscripts configuration files ARCH, COMPONENT and SUITE can be comma (or space) separated lists, e.g. --architecture=m68k,i386 CONFIGURATION VARIABLES
The two configuration files /etc/devscripts.conf and ~/.devscripts are sourced by a shell in that order to set configuration variables. Command line options can be used to override configuration file settings. Environment variable settings are ignored for this purpose. The currently recognised variables are: RMADISON_URL_MAP_SHORTHAND=URL Add an entry to the set of shorthand URLs listed above. SHORTHAND should be replaced with the shorthand form to be used to refer to URL. Multiple shorthand entries may be specified by using multiple RMADISON_URL_MAP_* variables. RMADISON_DEFAULT_URL=URL Set the default URL to use unless overridden by a command line option. RMADISON_ARCHITECTURE=ARCH Set the default architecture to use unless overridden by a command line option. To run an unrestricted query when RMADISON_ARCHITECTURE is set, use --architecture='*'. NOTES
dak ls also supports -r, --regex to treat PACKAGE as a regex. Since that can easily DoS the database ("-r ."), this option is not supported by the CGI and rmadison. dak ls was formerly called madison. The protocol used by rmadison is fairly simple, the CGI accepts query the parameters a, b, c, g, G, s, S, t, and package. The parameter text is passed to enable plain-text output. SEE ALSO
madison-lite(1), dak(1). AUTHOR
rmadison and http://qa.debian.org/madison.php were written by Christoph Berg <myon@debian.org>. dak was written by James Troup <james@nocrew.org>, Anthony Towns <ajt@debian.org>, and others. Debian Utilities 2013-12-23 RMADISON(1)
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