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Shell Programming and Scripting

Adding Previous Month To Filename

 
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Old 07-16-2012
Adding Previous Month To Filename
Dear experts,

I'm using solaris 5.10 and bash. I want to zip file "Amount.txt" to "Amount.zip" and rename it to "Amount_<prev_month>_<this year>.zip". For example, file for this month should be renamed to "Amount_06_2012.zip", for next month it should be "Amount_07_2012.zip". I have no problem for zipping the file. Here's the script but it's not working:

Code:
month=`date +%m`
year=`date +%Y`
lmonth=`expr $month - 1`
if test "$lmonth" = "0"
then
lmonth=12
year=`expr $year - 1`
fi

mv Amount.zip Amount_`$lmonth`_`$year`.zip

When I executed it, it shows:
Code:
./script.sh: 6: not found
./script.sh: 2012: not found

Then the zip file renamed to "Amount__.zip"

Best regards,
Kris Adrianto
 
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LEARN ABOUT CENTOS

zip_set_archive_comment

ZIP_SET_ARCHIVE_COMMENT(3)				     Library Functions Manual					ZIP_SET_ARCHIVE_COMMENT(3)

NAME

       zip_set_archive_comment - set zip archive comment

LIBRARY

       libzip (-lzip)

SYNOPSIS

       #include <zip.h>

       int zip_set_archive_comment(struct zip *archive); "const char *comment" "int len"

DESCRIPTION

       The  zip_set_archive_comment  function  sets  the comment for the entire zip archive.  If comment is NULL and len is 0, the archive comment
       will be removed.

RETURN VALUES

       Upon successful completion 0 is returned.  Otherwise, -1 is returned and the error information in archive is set to indicate the error.

ERRORS

       zip_set_archive_comment fails if:

	      [ZIP_ER_INVAL]
		  len is less than 0 or longer than the maximum comment length in a zip file (65535).

	      [ZIP_ER_MEMORY]
		  Required memory could not be allocated.

SEE ALSO

       libzip(3), zip_get_archive_comment(3), zip_get_file_comment(3), zip_set_file_comment(3)

AUTHORS

       Dieter Baron <dillo@giga.or.at> and Thomas Klausner <tk@giga.or.at>

NiH								 October 26, 2007					ZIP_SET_ARCHIVE_COMMENT(3)