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Full Discussion: Increase the performance of find command.
Top Forums Shell Programming and Scripting Increase the performance of find command. Post 303041925 by mohtashims on Saturday 7th of December 2019 06:52:51 AM
Old 12-07-2019
Increase the performance of find command.
I'm trying to exclude 'BACKUP', 'STORE', 'LOGGER' folders while searching for all files under a directory "/tmp/moht"

Once a file is found I wish to display the filename, the size of the file & the cksum value.

Below is the command, I'm using:

Code:
/opt/freeware/bin/find /tmp/moht -type d -name 'BACKUP' -prune -o -type d -name 'STORE' -prune -o -type d -name 'LOGGER' -prune -o -type f -exec cksum {} \;

Output:
Code:
  701567198 47034 /tmp/moht/UPLOAD_DATA_OLD/WINTER/CORE14_46000.txt
  1165791713 39019 /tmp/moht/UPLOAD_DATA_OLD/CORE14_530000.txt
  3448997243 35258 /tmp/moht/UPLOAD_DATA_OLD/CORE14_487300.txt
  .......
  .......
+ 4294967295 0 /tmp/moht/UPLOAD_DATA_OLD/TEST/CORE14_613500.txt
  2875732103 46516 /tmp/moht/NEW/CORE14_753200.txt
  1525766291 46064 /tmp/moht/UPLOAD_DATA_OLD/CORE14_849300.txt
  2315828286 46532 /tmp/moht/UPLOAD_DATA_OLD/CORE14_902400.txt

Although the performce i.e time taken by the above command is reasonable; I wish to understand if there is any scope of performce improvement.

One thing I guess may help somewhat is:

Code:
cd /tmp/moht; /opt/freeware/bin/find . -type d -name "BACKUP" -prune -o -type d -name "STORE" -prune -o -type f -exec cksum {} \;

I'm on AiX 6.1

Suggestions / recommendations are appreciated.
Last edited by Scrutinizer; 12-07-2019 at 08:33 AM.. Reason: quote tags -> code tags
 

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LEARN ABOUT DEBIAN

parallel-slurp

PARALLEL-SLURP(1)														 PARALLEL-SLURP(1)

NAME

       parallel-slurp - copy files from listed hosts

SYNOPSIS

       parallel-slurp [OPTIONS] -h hosts.txt -L destdir remote local

DESCRIPTION

       pssh provides a number of commands for executing against a group of computers, using SSH. It's most useful for operating on clusters of
       homogenously-configured hosts.

       parallel-slurp gathers specified files from hosts you listed.

OPTIONS

       -r --recursive
	   recusively copy directories (OPTIONAL)

       -L --localdir
	   output directory for remote file copies

       -h --hosts
	   hosts file (each line "host[:port] [user]")

       -l --user
	   username (OPTIONAL)

       -p --par
	   max number of parallel threads (OPTIONAL)

       -o --outdir
	   output directory for stdout files (OPTIONAL)

       -e --errdir
	   output directory for stderr files (OPTIONAL)

       -t --timeout
	   timeout (secs) (-1 = no timeout) per host (OPTIONAL)

       -O --options
	   SSH options (OPTIONAL)

       -v --verbose
	   turn on warning and diagnostic messages (OPTIONAL)

EXAMPLE

       An example to copy /home/irb2/foo.txt from each host. Files gathered will be stored in /tmp/outdir/hostname/foo.txt.

	   # prallel-slurp -h hosts.txt -L /tmp/outdir -l irb2 
		    /home/irb2/foo.txt foo.txt

ENVIRONMENT

       All four programs take similar sets of options. All of these options can be set using the following environment variables:

       o   PSSH_HOSTS
       o   PSSH_USER
       o   PSSH_PAR
       o   PSSH_OUTDIR
       o   PSSH_VERBOSE
       o   PSSH_OPTIONS

SEE ALSO

       parallel-ssh(1), parallel-scp(1), parallel-nuke(1), parallel-rsync(1), ssh(1)

AUTHOR

       Brent N. Chun <bnc@theether.org>

COPYING

       Copyright: 2003, 2004, 2005, 2006, 2007 Brent N. Chun

NOTES

	1. bnc@theether.org
	   mailto:bnc@theether.org

								    03/30/2009							 PARALLEL-SLURP(1)
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