recursive search and ftp Post: 302512153

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Top Forums UNIX for Dummies Questions & Answers recursive search and ftp Post 302512153 by DGPickett on Friday 8th of April 2011 01:32:51 PM

04-08-2011

Registered User

This should be simple, even with an ftp layer.

Do you need to worry about copying a file while being written? If so, you can detect others on the file with fuser. Can you wait on the writer to finish, near term? Are there other local readers that would confuse fuser? Can you make the files you want to move read-only, immediately once created, so implicity there are not being written?

First, both sender and recipient will cd to the head dir over the subtree in question. I like to use "find * -type f -newer /elsewhere/mark_file ! -newer /elsewhere/mark_next" and a marker file created with touch. 'touch' a new file at the start of every cycle, /elsewhere/mark_next. Then sleep a second so anything written in that second and also the next will be excluded. Sleep longer if it helps eliminate files being written. After the find and send, "mv /elsewhere/mark_next /elsewhere/mark_file" to support the next batch, seamlessly. Pipe the find to a "while read f" do loop that knows how to check for writing users and ftp the file using relative paths. If the files to be moved are read-only, test with 'if [ -w "$f" ]' and if writable, 'touch' their modify time forward so they are considered on the next pass.

Last edited by DGPickett; 04-08-2011 at 02:38 PM..

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LEARN ABOUT OPENSOLARIS

dircmp

dircmp(1)							   User Commands							 dircmp(1)

NAME

       dircmp - directory comparison

SYNOPSIS

       dircmp [-ds] [-w n] dir1 dir2

DESCRIPTION

       The  dircmp  command  examines dir1 and dir2 and generates various tabulated information about the contents of the directories. Listings of
       files that are unique to each directory are generated for all the options. If no option is entered, a list is output indicating whether the
       file names common to both directories have the same contents.

OPTIONS

       The following options are supported:

       -d      Compares  the  contents	of  files with the same name in both directories and output a list telling what must be changed in the two
	       files to bring them into agreement. The list format is described in diff(1).

       -s      Suppresses messages about identical files.

       -w n    Changes the width of the output line to n characters. The default width is  72.

OPERANDS

       The following operands are supported:

       dir1    A path name of a directory to be compared.
       dir2

USAGE

       See largefile(5) for the description of the behavior of dircmp when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).

ENVIRONMENT VARIABLES

       See environ(5) for descriptions of the following environment variables that affect the execution of dircmp: LC_COLLATE,	LC_CTYPE,  LC_MES-
       SAGES, and NLSPATH.

EXIT STATUS

       The following exit values are returned:

       0     Successful completion.

       >0    An error occurred. (Differences in directory contents are not considered errors.)

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       cmp(1), diff(1), attributes(5), environ(5), largefile(5)

SunOS 5.11							    1 Feb 1995								 dircmp(1)