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Full Discussion: remember processed files
Top Forums Shell Programming and Scripting remember processed files Post 302356146 by sidorenko on Thursday 24th of September 2009 04:50:08 PM
Old 09-24-2009
remember processed files

Hello dear community!

I have the following task to accomplish: there is a directory with approximately 2 thousand files. I have to write a script which would randomly extract 200 files on the first run. On the second run it should extract again 200 files but that files mustn't intersect with those extracted during the first run of the script. So I have to remember the names (or probably inodes) of already extracted files. What do you think is the best way to do that? So far my decision is to create a new file with a list of inodes of already extracted files. On the subsequent runs of my script I'll then check whether the inodes of randomly chosen files are already present in the list. What do you think about this approach? Are there other probably more elegant ways to remember (or to mark) what files have already been extracted?
 

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MACSAVE(1)						      General Commands Manual							MACSAVE(1)

NAME
macsave - Save Mac files read from standard input SYNOPSIS
macsave [ - options ] DESCRIPTION
macsave reads a sequence of Macintosh MacBinary files from standard input and writes the files it contains subject to the options speci- fied. OPTIONS
In the absence of any options, macsave reads standard input and silently writes the file(s) it contains in MacBinary format, giving the output files ".bin" extensions and placing them in the current working directory. Subdirectories are created for embedded folders. -3 Write files in fork format (.info, .data and .rsrc files.) -f As -3, but empty data and rsrc files are not created. -r Write resource forks only (.rsrc files.) -d Write data forks only (.data files.) -u As -d, but the codes for CR and LF are interchanged, the filename extension is .text. -U As -u, but there is no filename extension. -a Write files in AppleShare format. This option is only valid if the program is compiled with support for some form of AppleShare. The current directory must be a valid AppleShare folder. -s Write extracted files to standard output in MacBinary format. -l List every file extracted (and every directory/folder created etc.) -i Do not extract, give information only (implies -l.) -q Ask the user for every file/folder whether it should be extracted (implies -l.) -V Gives the patchlevel of the program, and other information. Other options are ignored and the program quits immediately. -H Give short information about the options. Other options are ignored and the program quits immediately. BUGS
As this is a beta release, there may still be some problems. SEE ALSO
macutil(1) AUTHOR
Dik T. Winter, CWI, Amsterdam, The Netherlands (dik@cwi.nl) 3rd Berkeley Distribution October 22, 1992 MACSAVE(1)
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