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Full Discussion: Cp & skipping exiting files
Top Forums Shell Programming and Scripting Cp & skipping exiting files Post 302962806 by Daniel Gate on Friday 18th of December 2015 03:32:55 PM
Old 12-18-2015
Cp & skipping exiting files

// Redhat

I am running a cron with cp every 15 minutes.

Code:
cp /p2/arch/log/* /p2/bkp

What I need is to not to copy the file again if the filename already exists under /p2/bkp

The reason is that the file size under /p2/arch/log/ will be reduced (contents truncated), so I need to keep the files copied over for the very 1st time.

In that case, I keep the original files w/o losing the contents.

Please advise.
 

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Arch::Test::Tree(3pm)					User Contributed Perl Documentation				     Arch::Test::Tree(3pm)

NAME
Arch::Test::Tree - A test framework for Arch-Perl SYNOPSIS
use Arch::Test::Framework; my $fw = Arch::Test::Framework->new; my $tree = $fw->make_tree($dir, $version); my $dir = $tree->add_dir; $tree->add_file($dir); $tree->import; DESCRIPTION
Arch::Test::Tree provides methods to quickly build and modify Arch project trees within the Arch::Test framework. METHODS
new, root, framework, run_tla, add_file, add_dir, add_link, modify_file, rename_file, rename_dir, remove_file, remove_dir, inventory, import, commit. new [framework] [path] Create a new Arch::Test::Tree instance for path. This method should not be called directly. root Returns the project trees root directory. framework Returns the associated Arch::Test::Framework reference. run_tla @args Run "tla @args" from the tree root. add_file [dir [name [content]]] Add a new file name in directory dir. Fill file with content. dir defaults to the project root ("."). If name is not specified, a unique filename is generated. A default content is generated if none is given. add_dir [parent [name]] Add a new directory under parent, or "." if parent is not specified. If name is not given, a unique name is generated. add_link [parent [name [target]]] Add a new symbolic link under parent, or "." if parent is not specified. If name is not given, a unique name is generated. If target is omitted, a (probably) non-existing target is generated. modify_file file [content] Change files content to content, or append "Has been modified." if new content is omitted. rename_file old new Rename file old to new. Returns new. rename_dir old new Rename directory old to new. Returns new. remove_file file Delete file and its associated arch id. remove_dir dir Recursively delete dir and its content. inventory [flags] Returns the inventory as generated by running "tla inventory flags". flags default to "-Bs" if not specified. import [summary [log]] Create a "base-0" revision from tree using the summary line summary and log as log text. If tree contains a log file, summary and log can be omitted. commit [summary [log]] Commit a "patch-n" revision from tree using the summary line summary and log as log text. If tree contains a log file, summary and log can be omitted. AUTHORS
Mikhael Goikhman (migo@homemail.com--Perl-GPL/arch-perl--devel). Enno Cramer (uebergeek@web.de--2003/arch-perl--devel). perl v5.10.1 2005-04-14 Arch::Test::Tree(3pm)
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