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Rename files with sed and mv

I want to rename files in the format:

img_MM-DD-YY_XX.jpg

img_MM-DD-YY_XXX.jpg

at

newyears_YYYY-MM-DD_XXX.jpg

Where:

  • YYYY = year
  • MM = month
  • DD = day
  • XXX or XX = photo number

I came up with this script, but it does not work:

for filename in ?*.jpg; do
        newFilename=$(echo $filename | \
        sed 's/img_\(.*\)-\(.*\)-\(.*\)_\([0-9][0-9]\)\./newyears_20\3-\1-\2_0\4./;
                s/img_\(.*\)-\(.*\)-\(.*\)_\([0-9][0-9][0-9]\)/newyears_20\3-\1-\2_\4/' -)
        mv $filename $newFilename
done

Any help would be greatly appreciated.

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7 answers

You can try this script in bash:

for filename in *.jpg; do
  newFilename=$(sed -E 's#img_([0-9]{1,2})-([0-9]{1,2})-([0-9]{1,2})_(.*)$#newyears_20\3-\2-\1_\4#' <<< "$filename")
  mv "$filename" "$newFilename"
done

sed -Esupported as well gnu sed.

+7
source 
for f in *.jpg; do
  mv $f $(echo newyears_${f#img_} | sed 's/_\(..\)\.jpg/_0\1.jpg/')
done
+1
source

for.

ls | grep 'jpg$' | sed '
#Save the original filename
h
#Do the replacement
s/img_\(.*\)-\(.*\)-\(.*\)_\([0-9][0-9]\)\./newyears_20\3-\1-\2_0\4.//
s/img_\(.*\)-\(.*\)-\(.*\)_\([0-9][0-9][0-9]\)/newyears_20\3-\1-\2_\4//
#Bring the original filename back
x
G
s/^\(.*\)\n\(.*\)$/mv "\1" "\2"' | bash

Ommit bash, mv

http://www.gnu.org/software/sed/manual/sed.html#Rename-files-to-lower-case

+1

, . script, , , :

. script , :

mv   file1 file2
mv   file3 file4
.....
mv   fileN fileM

, ls | grep | sed script, mv file1 2 > myscript

. /myscript

, , , .

0

:

$ cat mapper
for filename in ?*.jpg
do
    newFilename=$(echo $filename | \
    sed -e 's/img_\(.*\)-\(.*\)-\(.*\)_\([0-9][0-9]\)\./newyears_20\3-\1-\2_0\4./' \
        -e 's/img_\(.*\)-\(.*\)-\(.*\)_\([0-9][0-9][0-9]\)/newyears_20\3-\1-\2_\4/')
    echo mv $filename $newFilename
done
$ echo > img_04-23-09_123.jpg
$ echo > img_08-13-08_33.jpg
$ sh mapper
mv img_04-23-09_123.jpg newyears_2009-04-23_123.jpg
mv img_08-13-08_33.jpg newyears_2008-08-13_033.jpg
$

-e .

MacOS X 10.6.7.

0

bash script.

for j in ?*.jpg
do
  n="newyears_20${j:10:2}-${j:4:2}-${j:7:2}";
  if [ ${j:15:1} = "." ];then
    n="${n}_0${j:13}"
  else
    n="${n}${j:12}"
  fi
  mv $j $n
done
0

(1.9 +)

$ ruby -e 'Dir["img*jpg"].each{|x|File.rename(x,x.gsub(/img_(.*?)-(.*?)-(.*?)\.jpg/,"newyears_20\\2-\\1-\\3.jpg") )}'
0

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