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Full Discussion: Bash to copy file 3 times and rename based on another file
Top Forums Shell Programming and Scripting Bash to copy file 3 times and rename based on another file Post 302992199 by Don Cragun on Wednesday 22nd of February 2017 03:20:17 PM
Old 02-22-2017
As long as you're using bash (or a 1993 or later version of ksh) and not just restricting yourself to POSIX required features and assuming that the file /home/cmccabe/Desktop/list/QC/metrics.txt contains the names of the files you want to move on the 1st three lines of that file (rather than being the name of a file that you want to copy to three other files), I'd be tempted to replace:
Code:
linesToSkip=2
{
    for ((i=$linesToSkip;i--;)) ;do
        read
        done
files=( /home/cmccabe/Desktop/list/QC/metrics.txt )
i=0
while read -r new_name; do
  mv "${files[$i]}" "$new_name"
  (( i++ ))
}
done < /home/cmccabe/Desktop/test/list.txt

with:
Code:
linesToSkip=2
{	for((i = 1; i <= linesToSkip; i++))
	do	read
	done

	while read -r new_name && read -ru4 old_name
	do	mv "$old_name" "$new_name"
	done
} < /home/cmccabe/Desktop/test/list.txt 4< /home/cmccabe/Desktop/list/QC/metrics.txt

Last edited by Don Cragun; 02-22-2017 at 04:24 PM.. Reason: Remove the echo.
These 3 Users Gave Thanks to Don Cragun For This Post:
cmccabe rbatte1 xbin
 

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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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