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Full Discussion: Backup help/advice using TAR
Top Forums UNIX for Dummies Questions & Answers Backup help/advice using TAR Post 95252 by Perderabo on Monday 9th of January 2006 02:05:41 PM
Old 01-09-2006
It is interesting that the script runs at all. The backtick syntax asks ksh to run the internal command and build a command line with the results. Command lines tend to have smaller limits than you would need. Or so I thought. I just got:
/usr/bin/echo `find /usr -type f -print` to work! I guess the limited got upped when we switched to 64 bits.

You have a rough problem here. We must not run even one program per file. It takes too much time to launch programs. So believe it or not, I think the faster approach will involve two stages: One to copy the the files, and another to delete them. And you need to use the date command to name your archive directory. Do you really edit this script every day?

cd /big/file/collection
Archive="archive/$(date "+%Y%m%d")
mkdir -p $Archive
find . -type f -mtime +7 | cpio -pd $Archive
(cd $Archive ; find . -type f )| xargs rm

Yes, that's the whole thing...I think. But it's untested.
 

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MKAF(1) 						      General Commands Manual							   MKAF(1)

NAME
mkaf - create a Performance Co-Pilot archive folio SYNOPSIS
$PCP_BINADM_DIR/mkaf [findopts] filename ... DESCRIPTION
A collection of one or more Performance Co-Pilot (see PCPIntro(1)) archive logs may be combined with mkaf to produce a PCP archive folio and the associated archive folio control file. Some PCP tools use mkaf to create archive folios, e.g. the ``record'' facility in the pmchart(1) and pmview(1) tools, to facilitate playback with pmafm(1). mkaf processes each filename argument, and if this is a component file from a PCP archive that archive is added to the folio. If filename is a directory, then this is searched recursively using find(1). Any filename argument beginning with a ``-'' is assumed to be a find(1) command line option (findopts); the default is -follow if no findopts are specified. The first named archive in the folio is assumed to be associated with the default host for any tool that tries to replay multiple archives from the folio. The folio control file is written to standard output, and has the following format. 1. The first line contains the word PCPFolio. 2. The second line contains the tag Version: followed by the format version number (currently 1). 3. For subsequent lines, blank lines and lines beginning with ``#'' are ignored. 4. The line beginning with the tag Created: documents where and when the folio was created. 5. The line beginning with the tag Creator: identifies the tool which created the folio (and is assumed to know how to replay the archive folio). If present, the second argument is the name of a configuration file that the creator tool could use to replay the archive folio, e.g. with the replay command for pmafm(1). In the case of mkaf (unlike pmchart(1) or pmview(1)) there is no knowledge of the contents of the archives, so the ``creator'' cannot replay the archive, however pmchart(1) is able to replay any archive, and so this tool is identified as the Creator: for archive folios created by mkaf(1). 6. This is then followed by one or more lines beginning with the tag Archive: followed by the hostname and base name of the archive. For example $ mkaf mydir/gonzo might produce the following folio control file. PCPFolio Version: 1 # use pmafm(1) to process this PCP archive folio # Created: on gonzo at Tue Jul 2 03:35:54 EST 1996 Creator: pmchart # Host Basename # Archive: gonzo mydir/gonzo/960627 Archive: gonzo mydir/gonzo/960628 Archive: gonzo mydir/gonzo/960629 Archive: gonzo mydir/gonzo/960630 Archive: gonzo mydir/gonzo/960701 Archive: gonzo mydir/gonzo/960701.00.10 Archive: gonzo mydir/gonzo/960701.05.25 Archive: gonzo mydir/gonzo/960702.00.10 PCP ENVIRONMENT
Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configura- tion file, as described in pcp.conf(5). SEE ALSO
find(1), PCPIntro(1), pmafm(1), pmchart(1), pmview(1), pcp.conf(5) and pcp.env(5). DIAGNOSTICS
Some informational messages, warnings and pathological conditions are reported on standard error. Performance Co-Pilot PCP MKAF(1)
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