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mx0
mx0
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I have a lot of files where filename contains file creation date (IMG_RRRRMMDD_hhmmssIMG_YYYYMMDD_hhmmss.jpg):

IMG_20171015_133516.jpg
IMG_20171015_133827.jpg
IMG_20171015_142634.jpg
IMG_20171015_142834.jpg
IMG_20171015_142857.jpg

but actual file creation date is different. I need to set it back to date from a filename.

I know how to change the date of all files to current date:

find -type f -exec touch {} \;

and how to parse the file name to get the date in the proper format for touch -t

echo IMG_20171015_133516.jpg | awk -F_ '{print $2 substr($3,0,4) "." substr($3,5,2)}'
201710151335.16

But I have no idea how to combine these commands together to change all files.

find -type f -exec touch -t"$(echo '{}' | awk -F_ '{print $2 substr($3,0,4) "." substr($3,5,2)}')" {} \;

returns

touch: invalid date format ‘.’

I have a lot of files where filename contains file creation date (IMG_RRRRMMDD_hhmmss.jpg):

IMG_20171015_133516.jpg
IMG_20171015_133827.jpg
IMG_20171015_142634.jpg
IMG_20171015_142834.jpg
IMG_20171015_142857.jpg

but actual file creation date is different. I need to set it back to date from a filename.

I know how to change the date of all files to current date:

find -type f -exec touch {} \;

and how to parse the file name to get the date in the proper format for touch -t

echo IMG_20171015_133516.jpg | awk -F_ '{print $2 substr($3,0,4) "." substr($3,5,2)}'
201710151335.16

But I have no idea how to combine these commands together to change all files.

find -type f -exec touch -t"$(echo '{}' | awk -F_ '{print $2 substr($3,0,4) "." substr($3,5,2)}')" {} \;

returns

touch: invalid date format ‘.’

I have a lot of files where filename contains file creation date (IMG_YYYYMMDD_hhmmss.jpg):

IMG_20171015_133516.jpg
IMG_20171015_133827.jpg
IMG_20171015_142634.jpg
IMG_20171015_142834.jpg
IMG_20171015_142857.jpg

but actual file creation date is different. I need to set it back to date from a filename.

I know how to change the date of all files to current date:

find -type f -exec touch {} \;

and how to parse the file name to get the date in the proper format for touch -t

echo IMG_20171015_133516.jpg | awk -F_ '{print $2 substr($3,0,4) "." substr($3,5,2)}'
201710151335.16

But I have no idea how to combine these commands together to change all files.

find -type f -exec touch -t"$(echo '{}' | awk -F_ '{print $2 substr($3,0,4) "." substr($3,5,2)}')" {} \;

returns

touch: invalid date format ‘.’

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Jeff Schaller ♦
Jeff Schaller ♦
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mx0
mx0
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Set file modification date from date stored as filename

I have a lot of files where filename contains file creation date (IMG_RRRRMMDD_hhmmss.jpg):

IMG_20171015_133516.jpg
IMG_20171015_133827.jpg
IMG_20171015_142634.jpg
IMG_20171015_142834.jpg
IMG_20171015_142857.jpg

but actual file creation date is different. I need to set it back to date from a filename.

I know how to change the date of all files to current date:

find -type f -exec touch {} \;

and how to parse the file name to get the date in the proper format for touch -t

echo IMG_20171015_133516.jpg | awk -F_ '{print $2 substr($3,0,4) "." substr($3,5,2)}'
201710151335.16

But I have no idea how to combine these commands together to change all files.

find -type f -exec touch -t"$(echo '{}' | awk -F_ '{print $2 substr($3,0,4) "." substr($3,5,2)}')" {} \;

returns

touch: invalid date format ‘.’