Create shortest log organizer

Question

Create the shortest script that organizes all the logs by month and date.

Rules

Syntax

organize <folder to scan> <folder to place logs> 

• folder cannot be root
• the two folder should be different and not contain one another

Behaviour

The script should scan all the *.log files in <folder to scan> and copy them to <folder to place logs> in sub-folders corresponding to the year and month of the last modified time of the log file, named like year_month.

Example:

organize /var/log/apache2 /temp/logs  

would give folder structure like this:

/temp/logs/
|-- 2014_01
|-- 2014_02
|-- 2014_03
|-- 2014_04
|-- 2014_05

Languages, environment

All languages and OSs are permitted but need to be specified.

But since this is a code-golf question, script languages (python, bash, windows batch) will be more fit from the start.

Answer 1

Bash - 79 bytes

stat -c" $2/-%n-%y" $1/*.log|awk -F- '{d=$1$3"_"$4;system("mkdir"d";cp "$2d)}'

Answer 2

Batch - 104 bytes

@cmd/von/c"for /r %1 %%a in (*.log)do @set a=%%~ta&set a=!a:~6,4!_!a:~3,2!&mkdir %2\!a!&copy %%a %2\!a!"

Answer 3

Powershell (124 bytes)

Get-ChildItem $($s+"\*.log")|%{$n=$d+"\"+$_.LastWriteTime.ToString("yyyy_MM");if(!(Test-Path $n)){md $n}mi $($s+$_.Name) $n}

Has the added bonus of scanning for only .log files in the given folder if there are multiple file types. If not, then I can knock this down to 112. $s is the full source folder path, and $d is the destination folder path.

Answer 4

Cobra - 223

OS: Any with Mono/.NET

Because this is the perfect task for an obscure compiled language! < /sarcasm>

class P
    def main
        a,b=CobraCore.commandLineArgs[1:]
        for f in Directory.getFiles(a,'*.log')
            m=b+File.getLastWriteTime(f).toString('yyy_MM')
            Directory.createDirectory(m)
            File.copy(f,m+f[f.lastIndexOf('/'):],true)

Answer 5

Bourne Shell / FreeBSD 9.2+ - 92(83) bytes

#!/bin/sh
ls -lD"%Y_%m" $1/*.log|cut -wf6-|while read A B;do mkdir $2/$A;cp $1/$B $2/$A;done