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Full Discussion: Is better way copy list of multiple files, rename and gzip
Top Forums Shell Programming and Scripting Is better way copy list of multiple files, rename and gzip Post 302933637 by Don Cragun on Sunday 1st of February 2015 01:48:03 AM
Old 02-01-2015
This seems to run a little bit faster than your script and should produce the same results:
Code:
#!/bin/ksh
date="${1:-$(date '+%Y%m%d')}"	# Date to process ($1 or today if no operands specified)
from='/tmp/test'		# Source directory
to='/staging/test'		# Target directory

cd "$to"
awk -v date="$date" -v from="$from" -v to="$to" '
{	sub(/[{]DATE_FILE[}]/, date)	# Replace "{DATE_FILE}" with desired date
}
/^Old_File/ {
	o[++oc] = $2	# Accumulate old file names.
	next
}
/^New_File/ {
	# Process new file names...
	++nc	# Increment # of new file names seen
	printf("cp %s/%s %s\n", from, o[nc], $2)	# Print cp command
	printf("gzip %s\n", $2)	# Print gzip command
}' "$from/controlfile" | ksh

I would suggest that you remove the | ksh at the end of the script to see the cp and gzip command that the script will produce. Then, if the commands look right, put the pipe through the shell back in to actually execute the command instead of just printing them.

If you want to run this on a Solaris/SunOS system, change awk in the script to /usr/xpg4/bin/awk, /usr/xpg6/bin/awk, or nawk.
Last edited by Don Cragun; 02-01-2015 at 03:55 AM.. Reason: Fix typo in alternative awk name "s|/iusr/xpg4/bin/awk|/usr/xpg4/bin/awk".
 

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LEARN ABOUT SUNOS

nice

nice(1) 							   User Commands							   nice(1)

NAME

       nice - invoke a command with an altered scheduling priority

SYNOPSIS

       /usr/bin/nice [-increment | -n increment]  command [argument...]

       /usr/xpg4/bin/nice [-increment | -n increment]  command [argument...]

   csh Builtin
       nice [-increment | +increment]  [command]

DESCRIPTION

       The  nice utility invokes command, requesting that it be run with a different system scheduling priority. The priocntl(1) command is a more
       general interface to scheduler functions.

       The invoking process (generally the user's shell) must be in a scheduling class that supports nice.

       If the C shell (see csh(1)) is used, the full path of the command must be specified. Otherwise, the csh built-in version of  nice  will	be
       invoked. See csh Builtin below.

   /usr/bin/nice
       If nice executes commands with arguments, it uses the default shell /usr/bin/sh (see sh(1)).

   /usr/xpg4/bin/nice
       If nice executes commands with arguments, it uses /usr/xpg4/bin/sh (see ksh(1)).

   csh Builtin
       nice is also a csh built-in command with behavior different from the utility versions.  See csh(1) for description.

OPTIONS

       The following options are supported:

       -increment | -n increment

	   increment  is  a  positive  or  negative decimal integer that has the same effect on the execution of the utility as if the utility had
	   called the nice() function with the numeric value of the increment option-argument. See nice(2). nice() errors, other than EINVAL,  are
	   ignored. If not specified, an increment of 10 is assumed.

	   The	super-user  may  run  commands	with  priority	higher than normal by using a negative increment such as -10. A negative increment
	   assigned by an unprivileged user is ignored.

OPERANDS

       The following operands are supported:

       command	       The  name  of  a  command  that	is  to	be  invoked.  If  command  names  any  of  the	special  built-in  utilities  (see
		       shell_builtins(1)), the results are undefined.

       argument        Any string to be supplied as an argument when invoking command.

ENVIRONMENT VARIABLES

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

EXIT STATUS

       If command is invoked, the exit status of nice will be the exit status of command. Otherwise, nice will exit with one of the following val-
       ues:

       1-125	An error occurred.

       126	command was found but could not be invoked.

       127	command could not be found.

ATTRIBUTES

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

   /usr/bin/nice
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

   /usr/xpg4/bin/nice
       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWxcu4			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), ksh(1), nohup(1), priocntl(1), sh(1), shell_builtins(1), nice(2), attributes(5), environ(5), standards(5)

SunOS 5.10							    23 Jan 2004 							   nice(1)
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