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Full Discussion: Advanced File Rename help
Top Forums UNIX for Dummies Questions & Answers Advanced File Rename help Post 302220869 by rubin on Friday 1st of August 2008 10:43:26 PM
Old 08-01-2008
Code:
for i in *.asc
 
 do 
   
   a=${i%_*}; b=${i#*_}; c=${b%.*}
 
    if [ $(expr $c - 183) -lt 1 ]
      then
         x=$(expr $a - 1); y=$(printf "%03s\n" $(expr $c - 183 + 365))
         mv $i $x"_"$y.asc
      else 
         x=$a; y=$(printf "%03s" $(expr $c - 183))
         mv $i $x"_"$y.asc
    fi
 
done

Try it first with echo, then do a rename with mv.
 

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rename(3tcl)						       Tcl Built-In Commands						      rename(3tcl)

__________________________________________________________________________________________________________________________________________________

NAME
rename - Rename or delete a command SYNOPSIS
rename oldName newName _________________________________________________________________ DESCRIPTION
Rename the command that used to be called oldName so that it is now called newName. If newName is an empty string then oldName is deleted. oldName and newName may include namespace qualifiers (names of containing namespaces). If a command is renamed into a different namespace, future invocations of it will execute in the new namespace. The rename command returns an empty string as result. EXAMPLE
The rename command can be used to wrap the standard Tcl commands with your own monitoring machinery. For example, you might wish to count how often the source command is called: rename ::source ::theRealSource set sourceCount 0 proc ::source args { global sourceCount puts "called source for the [incr sourceCount]'th time" uplevel 1 ::theRealSource $args } SEE ALSO
namespace(3tcl), proc(3tcl) KEYWORDS
command, delete, namespace, rename Tcl rename(3tcl)
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