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#!/bin/bash

# When a match is not found, just present nothing.
shopt -s nullglob

# Match all .wav files containing the date format.
files=(*[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]*.wav)

if [[ ${#files[@]} -eq 0 ]]; then
 echo "No match found."
fi

for file in "${files[@]}"; do
 # We get the date part by part
 file_date=''
 # Sleep it to parts.
 IFS="-." read -ra parts <<< "$file"
 for t in "${parts[@]}"; do
        # Break from the loop if a match is found
    if [[ $t == [0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9] ]]; then
        file_date=$t
        break
     fi
  done
 # If a value was not assigned, then show an error message and continue to the next file.
 # Just making sure there is nothing in Array and date before it moves on
 if [[ -z $file_date ]]; then
    unset $files
    continue
fi

file_year=${file_date:0:4}
file_month=${file_date:4:2}

echo $file_year
echo $file_month
echo mkdir -p $file_year/$file_month
mkdir -p "$file_year/$file_month"

 # -- is just there to not interpret filenames starting with - as options.

echo "$file" "$file_year/$file_month" 
mv  "$file" "$file_year/$file_month"
done

So after running my code my output is this I det DIR 201211, 201212, 201301,201302,201303,201304, So I try running this because I have files that have a YYYYMMDD and wanna make DIR the year and then inside that i want DIR month then file. Sometimes I can get a DIR2013/06/files but for some odd reason i get DIR201304/files. I am not understanding what the issue is....... Im running this script on about 1.1 Terabite

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1 回答 1

0

bash 可以做正则表达式，所以你可以做这样的事情：

filename="blah.blah-12345678.ext"
if [[ $filename =~ [.-]([0-9]{4})([0-9]{2})[0-9]{2}[.-] ]]; then 
    echo year=${BASH_REMATCH[1]} month=${BASH_REMATCH[2]}
fi

year=1234 month=56

BASH_REMATCH是一个数组，在索引 0 中保存字符串的匹配部分，其他索引保存由括号捕获的部分。

于 2013-09-26T16:19:38.900 回答