Find files in a date range?

[Dave M]

At 03:41 PM 7/29/2007 , Alex wrote:
>Dave M said the following on 07/27/2007 08:19 PM:
>>Is there a way to use 'find' to traverse a directory tree and print the 
>>full paths to files in a date range? I can do:
>><<snip>>
>>-------------------------------
>>Dave M
>>
>>
>Here's slightly impoved version.  Better instructions.  Run it with no 
>parameters.

Thank you for your help. That example showed me the missing magic. I guess 
I missed the part in the man pages regarding using "-mtime +n" and "-mtime 
-n" to search a range of dates.

For the BASH fans on the list, here is the bash script that I came up with:

- begin 
-----------------------------------------------------------------------------
#!/bin/bash
#
# Copyright 2007, Dave Markus (Davem at Mich Dot Com)
#
# - Traverse a directory tree and
#   List all files modified within a given date range
#   $1 Directory tree to search
#   $2 Search Specification
#   $2 Start Date
#   $3 End Date
#   $4-$9 test parameters (for find, see "man find")
#
#   If you fix bugs, or make improvements, I would
#   appreciate seeing a copy. I am sure there is much room for improvement :)
#   Be sure to put "DateRangeFind" in your subject line so I get your message.
#
# This script is free software, and you are welcome to redistribute it 
and/or modify
# it under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 3 of the License,
# or (at your option) any later version. http://gplv3.fsf.org/
#
# Release:
# 2007.07.30 alpha - Dave Markus, first release
#   Tested with:
#   - Ubuntu 6.06 (dapper)
#
#Convert date to time-stamp
Date2stamp ()
{  date --utc --date "$1" +%s
}

#Find the number of days between dates
DaysDiff ()
{  Sec=$((($1)-($2)))
    if ((Sec < 0)); then
      echo $((Sec/-86400))
    else
      echo $((Sec/86400));
    fi
}

#Test for arguments
if [ ! "$1" ] || [ ! $2 ] || [ ! $3 ]; then
   echo ""
   echo "    Script to use \"find\" to list all files within a date range"
   echo ""
   echo "    Useage:"
   echo "      $ ./DateRangeFind.sh /Dir2Search yyyymmdd yyyymmdd [\"test 
arguments\"]"
   echo "    run \"\$ man find\" or \"\$ find --help\" for details of 
\"test arguments\""
   echo ""
   exit
fi

dir2search="$1"
today=$(date +%s)
param2=$(Date2stamp $2)
param3=$(Date2stamp $3)

#Abort on invalid date argument
if (($param2 > $today)) || (($param3 > $today)); then
   echo "DateRangeFind Error: Unable to find files with dates in the future!"
   exit 255
fi

#Combine test arguments
if [ ! "$4" ]; then
   Tests=""
else
   Tests="$4 $5 $6 $7 $8 $9"
fi

# Sort start and end dates
if (($param2 > $param3)); then
   end=$param2
   start=$param3
else
   start=$param2
   end=$param3
fi

#Calculate offsets from today
startdays=$(($(DaysDiff $today $start) +1))
enddays=$(($(DaysDiff $today $end) -1))

#Build range argument for find
if (( $startdays > 0 )) && (($enddays > 0 )); then
   range="-mtime -$startdays -mtime +$enddays"
else
   range="-mtime -$startdays"
fi

#Find the matching files
find -L "$dir2search" $Tests -type f -daystart $range -printf "%h/%f\n"

exit $?
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Dave M
Davem (at) Mich (dot) Com
Ann Arbor, Mich. USA

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