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Full Discussion: Help in renaming file !!!
Top Forums UNIX for Dummies Questions & Answers Help in renaming file !!! Post 302116122 by kumarsaravana_s on Wednesday 2nd of May 2007 02:55:01 AM
Old 05-02-2007
Help in renaming file !!!
Hi All,

I want to rename a file inside a script which has a date portion appended at the start of the file name.

The script i wrote works fine when the file comes on a day to day basis but sometimes it comes late too.

#!/usr/bin/ksh

cd /space/file/source

dt=$(date "date "+%m%d%Y")
mv $dt_xxx_yyy_aaa_bbb.txt xxx_yyy_aaa_bbb_$dt.txt

input:
04302007_xxx_yyy_aaa_bbb.txt

output should be like
xxx_yyy_aaa_bbb_04302007.txt.

I know sed or awk can do this by extracting the numeric part and then appending it to the end of file name.But me totally new to such things.Can someone help me extracting the date portion and then adding it just before the extension?

Thanks,
Kumar
 

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LEARN ABOUT OSX

widget_calendar

widget_calendar(n)					    widget::calendar Megawidget 					widget_calendar(n)

__________________________________________________________________________________________________________________________________________________

NAME

       widget_calendar - widget::calendar Megawidget

SYNOPSIS

       package require Tcl  8.4

       package require Tk  8.4

       package require widget  ?3.0?

       widget::calendar pathname ?options?

_________________________________________________________________

DESCRIPTION

       This package provides a calendar megawidget (snidget).

       widget::calendar pathname ?options?

WIDGET OPTIONS

       -command
	      A script to evaluate when a date was selected.

       -dateformat
	      The format of the date that is returned. Default: %m/%d/%Y.

       -firstday
	      Set first day the week, Either sunday or monday. It defaults to monday.

       -font  Select the font used in the widget. It defaults to Helvetica 9.

       -highlightcolor
	      Selects the background color for the day that has been selected. Default: #FFCC00

       -language
	      Specify  language of the calendar contents. The language is specified by abbreviations of the languge, for example: en - english, de
	      - german ...  It defaults to en.

	      Supported languages: en, de, fr, it, es, pt, ru, sv, zh, fi

       -shadecolor
	      Selects the color of the parts that have a shaded background. Default: #888888

       -showpast
	      Specify if the past shall be shown. It is a boolean value and defaults to 1.

       -textvariable
	      Specifies the name of a variable whose value is linked to the entry widget's contents.  Whenever the  variable  changes  value,  the
	      widget's contents are updated, and vice versa.

WIDGET COMMAND

       pathname get ?what?

       Returns	a  part  of  the  selected date or 'all'. The argument what selects the part. Valid values for what are: day, month, year and all.
       'all' is the default and returns the complete date in the format given with -dateformat.

DEFAULT BINDINGS

       On creation of the calendar widget the following bindings are installed.

       o      Up - Move to week before current date

       o      Down - Move to week after current date

       o      Left - Move to day before current date

       o      Right - Move to day after current date

       o      Control-Left - Move to month before current date

       o      Control-Right - Move to month after current date

       o      Control-Up - Move to year before current date

       o      Control-Down - Move to year after current date

EXAMPLE

	   package require widget::calendar ; # or widget::all
	   set t [widget::calendar .t]
	   pack $t -fill x -expand 1

KEYWORDS

       megawidget, snit, widget

widget								       0.93							widget_calendar(n)
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