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Full Discussion: bash script to rename multiple directories
Top Forums Shell Programming and Scripting bash script to rename multiple directories Post 302373586 by garethsays on Friday 20th of November 2009 11:27:15 PM
Old 11-21-2009
bash script to rename multiple directories
Hello

I have a directory structure with year in format 4 digits, e.g 2009, below which is month format 1 or 2 digits, e.g 1 or 12, blow which is day format 1 or 2 digits, e.g 1 or 31.

I want to change the names of lots of directories to the be
Year - 4 digits , e.g 2009 - No change here
Month 4 digi year, underscore, 2 digit month - e.g 2009_10 for October 2009
Day 4 digi year, underscore, 2 digit month, underscore, 2 digit day - e.g 2009_10_31 for 31st October 2009

Some files already have the new naming structure so there must be a check before renaming somehow. there are files within the day directories which should be unchanged.

So far I thought to use the find -d command to check for directories and check for directories named with only a single character and place a zero at the start of the name.

How do I check how many characters are in the directory name?

And after that I got kind of lost......any bored script writers out there?

Thanks in advance people
 

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LEARN ABOUT DEBIAN

shtool-mdate

SHTOOL-MDATE.TMP(1)					      GNU Portable Shell Tool					       SHTOOL-MDATE.TMP(1)

NAME

       shtool-mdate - GNU shtool pretty-print last modification time

SYNOPSIS

       shtool mdate [-n|--newline] [-z|--zero] [-s|--shorten] [-d|--digits] [-f|--field-sep str] [-o|--order spec] path

DESCRIPTION

       This command pretty-prints the last modification time of a given file or directory path, while still allowing one to specify the format of
       the date to display.

OPTIONS

       The following command line options are available.

       -n, --newline
	   By default, output is written to stdout followed by a "newline" (ASCII character 0x0a). If option -n is used, this newline character is
	   omitted.

       -z, --zero
	   Pads numeric day and numeric month with a leading zero. Default is to have variable width.

       -s, --shorten
	   Shortens the name of the month to a english three character abbreviation. Default is full english name. This option is silently ignored
	   when combined with -d.

       -d, --digits
	   Use digits for month. Default is to use a english name.

       -f, --field-sep str
	   Field separator string between the day month year tripple. Default is a single space character.

       -o, --order spec
	   Specifies order of the day month year elements within the tripple. Each element represented as a single character out of ``"d"'',
	   ``"m"'' and ``"y"''. The default for spec is ``"dmy"''.

EXAMPLE

	#   shell script
	shtool mdate -n /
	shtool mdate -f '/' -z -d -o ymd foo.txt
	shtool mdate -f '-' -s foo.txt

HISTORY

       The GNU shtool mdate command was originally written by Ulrich Drepper in 1995 and revised by Ralf S. Engelschall <rse@engelschall.com> in
       1998 for inclusion into GNU shtool.

SEE ALSO

       shtool(1), date(1), ls(1).

18-Jul-2008							   shtool 2.0.8 					       SHTOOL-MDATE.TMP(1)
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