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Full Discussion: Soft link/file name problem
Top Forums Shell Programming and Scripting Soft link/file name problem Post 302282017 by otheus on Friday 30th of January 2009 03:01:22 AM
Old 01-30-2009
find command:
Code:
imgdir=/home/stuff

find /mnt/disk -type f -a \
	\( -name '*.gif' \
	-o -name '*.GIF' \
	-o -name '*.jpg' \
	-o -name '*.JPG' \
	-o -name '*.jpeg' \
	-o -name '*.JPEG' \
	-o -name '*.png' \
	-o -name '*.PNG' \
	\) -exec /usr/local/bin/makelink "{}" $imgdir ';'

The make the /usr/local/bin/makelink file as mentioned above. (If you don't have access permissions, create $HOME/bin and put it in there; change the find command appropriately.)

The missing part in the script should be something like this:
Code:
   file=`echo $file | perl -pe 's/(?<!\d\])\./[0]\./;s/\[(\d+)\]\./"[".($x=$1,++$x)."]."/e;'`

This will work for just about any number of files. Example:
Code:
echo test[99].jpg | perl -pe 's/(?<!\d\])\./[0]\./;s/\[(\d+)\]\./"[".($1+1)."]."/e;'
test[100].jpg

Perl does two substitutions (stuff between s/.../Smilie. The first looks for a period NOT preceded by a digit that is followed by a right-bracket. If it finds such a string, it replaces it with [0]. The next looks for a number inside brackets and followed by a period. If it finds such a thing (which it will if the previous step succeeded, or as it must if the previous step failed) it replaces the number found with the next higher number (just adds 1).

The output is sent to the shell which stores that output in the variable "file". The next iteration of the while loop should fail, and then the ln command will do its thing.
 

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crontab(5)							File Formats Manual							crontab(5)

Name
       crontab - clock daemon table file

Syntax
       /usr/lib/crontab

Description
       The  command  executes  at  specified dates and times according to the instructions in the file. The file consists of lines with six fields
       each.  The format for a line is as follows:

	      minute hour day month weekday command

       The following list defines each field in the line:

       minute (0-59)  The exact minute that the command sequence executes.

       hour (0-23)    The hour of the day that the command sequence executes.

       day (1-31)     The day of the month that the command sequence executes.

       month (1-12)   The month of the year that the command sequence executes.

       weekday (1-7)  The day of the week that the command sequence executes. Monday = 1, Tuesday = 2, and so forth.

       command	      The complete command sequence variable that is to be executed.  Note that the command string must conform  to  Bourne  shell
		      syntax.

       The first five integer fields may be specified as follows:

       o   A single number in the specified range

       o   Two numbers separated by a minus, meaning a range inclusive

       o   A list of numbers separated by commas, meaning any of the numbers

       o   An asterisk meaning all legal values

       The sixth field is a string that is executed by the shell at the specified times.  A percent sign (%) in this field is translated to a new-
       line character.	Only the first line of the command field, up to a percent sign (%) or end of line, is executed by the  shell.	The  other
       lines are made available to the command as standard input.

Examples
       The following example is part of a file:
       # periodic things
       0,15,30,45 * * * * (echo '^M' `date`; echo '') >/dev/console
       0,15,30,45 * * * * /usr/lib/atrun

       # daily stuff
       5 4 * * * sh /usr/adm/newsyslog
       15 4 * * * ( cd /usr/preserve; find . -mtime +7 -a -exec rm -f {} ; )
       20 4 * * * find /usr/msgs -mtime +21 -a ! -perm 444 -a ! -name bounds
	    -a -exec rm -f {} ;

       # NOTE: The above line is wrapped.

       # local cleanups
       30 4 * * * find /usr/spool/mqueue -type f -mtime +5 -name df-exec rm {} ;
       35 4 * * * find /usr/spool/mqueue -type f -mtime +5 -name tf-exec rm {} ;
       40 4 * * * find /usr/spool/rwho -type f -mtime +21 -exec rm {} ;
       #

       # redirecting error output
       0 17 * * 1,3,5 /bin/tar -cv /usr/sysads/smith > /dev/console 2>&1
       #

Files
See Also
       sh(1), cron(8)
       Guide to System Environment Setup

																	crontab(5)
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