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Full Discussion: Help with Archiving multiple files based on name and date
Top Forums Shell Programming and Scripting Help with Archiving multiple files based on name and date Post 302543970 by DGPickett on Tuesday 2nd of August 2011 02:45:20 PM
Old 08-02-2011
You can do it going through a sorted list with history in variables. If you hit a later file, you move the last file to archive. Here, * is a sorted list, and the ksh does it all but the mv internally, until 2040:
Code:
#!/usr/bin/ksh
 
cd $CURRENT_DIR
 
for file in *
do
 file_base=${file%_[01][0-9][0-3][0-9]20[0-3][0-9]}
 
 if [ $file_base = "$last_file_base" ]
 then
  mv last_file $ARCHIVE_DIR # one at a time for simplicity
 fi
 
 last_file=$file  last_file_base=$file_base
done

Really, polling sucks! The creator app should do this, too, after a good file create.
 

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LEARN ABOUT OPENSOLARIS

setusershell

getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME

       getusershell, setusershell, endusershell - get legal user shells

SYNOPSIS

       #include <unistd.h>

       char *getusershell(void);

       void setusershell(void);

       void endusershell(void);

DESCRIPTION

       The  getusershell()  function  returns  a  pointer  to  a  legal  user  shell  as defined by the system manager in the file /etc/shells. If
       /etc/shells does not exist, the following locations of the standard system shells are used in its place:

	 /bin/bash		    /bin/csh
	 /bin/jsh		    /bin/ksh
	 /bin/ksh93		    /bin/pfcsh
	 /bin/pfksh		    /bin/pfsh
	 /bin/sh		    /bin/tcsh
	 /bin/zsh		    /sbin/jsh
	 /sbin/pfsh		    /sbin/sh
	 /usr/bin/bash		    /usr/bin/csh
	 /usr/bin/jsh		    /usr/bin/ksh
	 /usr/bin/ksh93 	    /usr/bin/pfcsh
	 /usr/bin/pfksh 	    /usr/bin/pfsh
	 /usr/bin/sh		    /usr/bin/tcsh
	 /usr/bin/zsh		    /usr/sfw/bin/zsh
	 /usr/xpg4/bin/sh

       The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells.

       The setusershell() function rewinds the file or the list.

       The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells.

RETURN VALUES

       The getusershell() function returns a null pointer on EOF.

BUGS

       All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved.

NOTES

       Restricted shells should not be listed in /etc/shells.

SunOS 5.11							    1 Nov 2007							  getusershell(3C)
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