Howto find specifc metadata content and delete it from pictures? - windows

I try to find a specific metadata content like "Odeon" in my *.jpg files with the help of exiftool.exe and then delete this specific tag from the file.
I can't find "Odeon" with the command
exiftool -if "$keywords =~ /Odeon/" .
I know it's there, for this example, the content is stored in the tag "Location".
Can please someone tell me, howto
a) find the content, wherever it will be stored inside a *.jpg
b) delete exactly this found tag from this file (without backup of the file)?

The reason that your command doesn't work is because you're only checking the Keywords tag. Location is a different tag and you would have check there for that info.
Unfortunately, Exiftool doesn't have the ability to list only the tags that have matching data. You can pipe the output through another command line program like Find (since you're on Windows) or Grep (other platforms). In that case, your command line would look like this:
exiftool -g1 -a -s FileOrDir | Find "Odeon"
That would list all the tags that have your info.
After you found the tag, you could then remove it without having a backup file with this command, replacing TAG with the name of the tag:
exiftool -overwrite_original -TAG= FileOrDir
Take note that this command would remove that tag from all the files if you specify a dir. If you want to be more selective and the tag contains ONLY the text "Odeon", then you could use this command. Note that this command is case sensitive. It would not remove "oDeON" or other variations:
exiftool -overwrite_original -TAG-="Odeon" FileOrDir
If you wanted to remove a certain tag that contains "Odeon" as part of a longer string and be case insensitive, then you could add the -if option.
exiftool -overwrite_original -if "$TAG=~/odeon/i" -TAG= FileOrDir
Finally, there is the shotgun approach using the -api "Filter=…" option. This requires version 10.05 or greater. This command:
exiftool -overwrite_original -api "Filter=s/odeon//gi" -tagsfromfile # -all:all FileOrDir
would remove "odeon" (case insensitive) from all tags in the file. It would not remove the tag and if odeon was part of a longer string, the rest of the string would remain. For example, if Location was equal to "Odeon", it would become a blank string. If Description was "This is Odeon", it would become "This is ". The part after "Filter=" is a perl regex substitution and you could further refine it by looking into regex.

Related

Use grep to exactly match a string in text inside files and then move those files to a separate directory

I have several files inside a directory, some which contain the word "sweet". I would like to use grep to find the files which contain the exact word and then move them to a different folder.
This is my code :
mv `grep -lir 'sweet' ~/directory1/` ~/directory2
However, there are some files with the word "sweets" or "sweeter" or "Sweet", my command is moving them as well, whereas I want the match to be strictly "sweet".
Please help, thanks.
Using grep -lrwF works
check comment thread with Shawn

Exiftool: batch-write metadata to JPEGs from text file

I'd like to use ExifTool to batch-write metadata that have been previously saved in a text file.
Say I have a directory containing the following JPEG files:
001.jpg 002.jpg 003.jpg 004.jpg 005.jpg
I then create the file metadata.txt, which contains the file names followed by a colon, and I hand it out to a coworker, who will fill it with the needed metadata — in this case comma-separated IPTC keywords. The file would look like this after being finished:
001.jpg: Keyword, Keyword, Keyword
002.jpg: Keyword, Keyword, Keyword
003.jpg: Keyword, Keyword, Keyword
004.jpg: Keyword, Keyword, Keyword
005.jpg: Keyword, Keyword, Keyword
How would I go about feeding this file to ExifTool and making sure that the right keywords get saved to the right file? I'm also open to changing the structure of the file if that helps, for example by formatting it as CSV, JSON or YAML.
If you can change the format to a CSV file, then exiftool can directly read it with the -csv option.
You would have to reformat it in this way. The first row would have to have the header of "SourceFile" above the filenames and "Keywords" above the keywords. If the filenames don't include the path to the files, then command would have to be run from the same directory as the files. The whole keywords string need to be enclosed in quotes so they aren't read as a separate columns. The result would look like this:
SourceFile,Keywords
001.jpg,"KeywordA, KeywordB, KeywordC"
002.jpg,"KeywordD, KeywordE, KeywordF"
003.jpg,"KeywordG, KeywordH, KeywordI"
004.jpg,"KeywordJ, KeywordK, KeywordL"
005.jpg,"KeywordM, KeywordN, KeywordO"
At that point, your command would be
exiftool -csv=/path/to/file.csv -sep ", " /path/to/files
The -sep option is needed to make sure the keywords are treated as separate keywords rather than a single, long keyword.
This has an advantage over a script looping over the file contents and running exiftool once for each line. Exiftool's biggest performance hit is in its startup and running it in a loop will be very slow, especially on a large amount of files (see Common Mistake #3).
See ExifTool FAQ #26 for more details on reading from a csv file.
I believe the answer by #StarGeek is superior to mine, but I will leave mine for completeness and reference of a more basic, Luddite approach :-)
I think you want this:
#!/bin/bash
while IFS=': ' read file keywords ; do
exiftool -sep ", " -iptc:Keywords="$keywords" "$file"
done < list.txt
Here is the list.txt:
001.jpg: KeywordA, KeywordB, KeywordC
002.jpg: KeywordD, KeywordE, KeywordF
003.jpg: KeywordG, KeywordH, KeywordI
And here is a result:
exiftool -b -keywords 002.jpg
KeywordD
KeywordE
KeywordF
Many thanks to StarGeek for his corrections and explanations.

OSX / MacOs batch rename hexadecimal filenames to decimal filenames

I want to rename filenames with a hexadecimal part in the name to decimal. For example: MOV12B.MOD, MOV12C.MOD etc. To MOV299.mod, MOV300.MOD.
Can this be done in terminal?
It is possible to rename the extension using:
find . -name "*.MOD" -exec rename 's/\.MOD$/.MPG/' '{}' \;
But how can I rename the files to decimal?
Sure, you can do it with rename, also known as Perl rename and prename which is most simply installed on macOS with homebrew using:
brew install rename
Then the command is:
rename --dry-run 's/[0-9A-F]+/hex($&)/e' *MOD
Sample Output
'MOV10.MOD' would be renamed to 'MOV16.MOD'
'MOV12B.MOD' would be renamed to 'MOV299.MOD'
'MOV12C.MOD' would be renamed to 'MOV300.MOD'
'MOVBEEF.MOD' would be renamed to 'MOV48879.MOD'
If you like what it does, remove the --dry-run part and do it for real.
I would recommend you make a backup before trying this anyway, because if your films are actually named "Film 23.MOD" rather than "MOV12B.MOD" you will get:
'Film 23.MOD' would be renamed to '15ilm 23.MOD'
If you want to put the date in too, you can do:
rename --dry-run 's/[0-9A-F]+/hex($&)/e; s|.MOD| 17/01/2018.MOD|' *MOD
Sample Output
'MOV12A.MOD' would be renamed to 'MOV298 17/01/2018.MOD'
Why couldn't you find it in the man-page? Well, there is a line in there that casually says you can pass a line of Perl code to modify the name. That means that the entire Perl language is available to you - so you could write several pages of code that access a database, run something on a remote machine, or fetch a URL in order to rename your file.
The only tricky thing in my code is the e lurking at the end:
s/search/replace/e
The e means that the second half of the search/replace is actually executed so it is not a straight textual replacement, it is a new program that gets the search string from the left-hand side in $& and can do maths or lookups on it.
I have done some other answers that involve similar techniques...
here,
here,
here.
If you want to put the modification time of the file into its name as well, you need to do a little more work. First, stat() the file before changing its name ;-) Remember you receive the original filename in $_. Then do the the hex to decimal thing, then add in the mtime. Remember Perl uses a dot to concatenate strings together.
So, the command is going to look like this:
rename --dry-run 'my $mtime=(stat($_))[9]; s/[0-9A-F]+/hex($&) . " " . $mtime/e;' *MOD
Sample Output
'MOV12A.MOD' would be renamed to 'MOV298 1516229449.MOD'
If all the substitution and evaluation gets too much, you can always do all your calculations and assign the result to Perl's $_ variable through which you receive the into filename and in which you pass the desired name back to rename. So, for an example:
rename --dry-run 'my $prefix="PREFIX "; my $middle=$_; my $suffix=" SUFFIX"; $_=$prefix . $middle . $suffix;' *MOD
'MOV12A.MOD' would be renamed to 'PREFIX MOV12A.MOD SUFFIX'
Only a real programmer would store his movies with hex names - kudos to you!

Add part of filename as PDF metadata using bash script and exiftool

I have about 600 books in PDF format where the filename is in the format:
AuthorForename AuthorSurname - Title (Date).pdf
For example:
Foo Z. Bar - Writing Scripts for Idiots (2017)
Bar Foo - Fun with PDFs (2016)
The metadata is unfortunately missing for pretty much all of them so when I import them into Calibre the Author field is blank.
I'm trying to write a script that will take everything that appears before the '-', removes the trailing space, and then adds it as the author in the PDF metadata using exiftool.
So far I have the following:
for i in "*.pdf";
do exiftool -author=$(echo $i | sed 's/-.*//' | sed 's/[ \t]*$//') "$i";
done
When trying to run it, however, the following is returned:
Error: File not found - Z.
Error: File not found - Bar
Error: File not found - *.pdf
0 image files updated
3 files weren't updated due to errors
What about the -author= phrase is breaking here? Please could someone enlighten me?
You don't need to script this. In fact, doing so will be much slower than letting exiftool do it by itself as you would require exiftool to startup once for every file.
Try this
exiftool -ext pdf '-author<${filename;s/\s+-.*//}' /path/to/target/directory
Breakdown:
-ext pdf process only PDF files
-author the tag to copy to
< The copy from another tag option. In this case, the filename will be treated as a pseudo-tag
${filename;s/\s+-.*//} Copying from the filename, but first performing a regex on it. In this case, looking for 1 or more spaces, a dash, and the rest of the name and removing it.
Add -r if you want to recurse into subdirectories. Add -overwrite_original to avoid making backupfiles with _original added to the filename.
The error with your first command was that the value you wanted to assign had spaces in it and needed to be enclosed by quotes.

what does the dollar sign mean in the substitution line of bash command "rename"

I was reading about rename and came across this example to change the file extension from htm to html:
rename -v 's/\.htm$/\.html/' *.htm
and it said: The $ means the end of the string. \.htm$ means that it will match .htm but not .html.
I was a bit confused by the use of $ here. Since we already specified *.htm at the end of command line, rename would only select out the htm files (instead of html). So why was it necessary to use the $ still? In another words, what's wrong with no using $?
Anchor $ matches the end of the source file name and it is still required in your regex and dot should also be escaped otherwise abc.htm.htm will be renamed to abc.html.htm instead of abc.htm.html.
Correct command is:
rename -v 's/\.htm$/.html/' *.htm

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