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Full Discussion: Loop through the dir and Rename zip files and their underlying text file.
Top Forums Shell Programming and Scripting Loop through the dir and Rename zip files and their underlying text file. Post 302916564 by bash987 on Wednesday 10th of September 2014 07:30:03 PM
Old 09-10-2014
Loop through the dir and Rename zip files and their underlying text file.
I have files in the ABC_YYYYMMDD.zip format under a directory. Each zip file contains A text file in the ABC_YYYYMMDD.txt format.

I am trying to create a script that will Rename the zip files and their underlying text file replacing the datepart in them with [datepart - 1 day].

For eg: in the case of ABC_20140910.zip, the zip file should be renamed to ABC_20140909.zip and the text file should be renamed to ABC_20140910.txt.

Below is what I have so far. I am sure that there is a more efficient way to accomplish this. Any input is appreciated. Thanks.


Code:
for file in `ls -v $FileNamePrefix*.zip`
do

DATE_PART=$(ls "$file" | grep $FileNamePrefix | grep -oE [[:digit:]]+ )  #strip date part from zip file name.

NEW_DATE_PART=$(date +'%Y%m%d' -d "$DATE_PART - 1 day")  #subtract 1 day from date part above.

unzip -o "$file" -d /tmp   #unzip to /tmp dir 

mv /tmp/"$FileNamePrefix"_"$DATE_PART".txt /tmp/"$FileNamePrefix"_"$NEW_DATE_PART".txt  #rename the txt file.

 zip -d "$FileNamePrefix"_"$DATE_PART".zip "$FileNamePrefix"_"$DATE_PART".txt  #remove the original txt file from the zip file.

zip -j "$FileNamePrefix"_"$DATE_PART".zip /tmp/"$FileNamePrefix"_"$NEW_DATE_PART".txt  #zip back the renamed txt file.
 
mv "$file" $FileNamePrefix"_"$NEW_DATE_PART".zip  #rename the zip file.

done

Last edited by Don Cragun; 09-10-2014 at 09:04 PM.. Reason: Add CODE and ICODE tags.
 

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LEARN ABOUT DEBIAN

zipnote

zipnote(1)						      General Commands Manual							zipnote(1)

NAME

       zipnote - write the comments in zipfile to stdout, edit comments and rename files in zipfile

SYNOPSIS

       zipnote [-w] [-b path] [-h] [-v] [-L] zipfile

ARGUMENTS

       zipfile	Zipfile to read comments from or edit.

OPTIONS

       -w     Write comments to a zipfile from stdin (see below).

       -b path
	      Use path for the temporary zip file.

       -h     Show a short help.

       -v     Show version information.

       -L     Show software license.

DESCRIPTION

       zipnote	writes the comments in a zipfile to stdout.  This is the default mode.	A second mode allows updating the comments in a zipfile as
       well as allows changing the names of the files in the zipfile.  These modes are described below.

EXAMPLES

       To write all comments in a zipfile to stdout use for example

	    zipnote foo.zip > foo.tmp

       This writes all comments in the zipfile foo.zip to the file foo.tmp in a specific format.

       If desired, this file can then be edited to change the comments and then used to update the zipfile.

	    zipnote -w foo.zip < foo.tmp

       The names of the files in the zipfile can also be changed in this way.  This is done by following lines like
	    "@ name"
       in the created temporary file (called foo.tmp here) with lines like
	    "@=newname"
       and then using the -w option as above.

BUGS

       The temporary file format is rather specific and zipnote is rather picky about it.  It should be easier to change file names in a script.

       Does not yet support large (> 2 GB) or split archives.

SEE ALSO

       zip(1), unzip(1)

AUTHOR

       Info-ZIP

								v3.0 of 8 May 2008							zipnote(1)
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