Using -if causes All fields to be print to console

[QGtKMlLz]

Being a code performance enthusiast, something that bothers me is that every tag for every file is generated to console.  I know I can use -p '' to suppress most of that output, but it still seems like the generation would bog down the run duration.

Adding in -s3 seems to speed things up by a ~100ms, but it seems the tags generation are still impacting it. 
In the end I just wanted '# of files failed match' and '# of files matched'.  I have been looking around but can't figure it out.

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exiftool.exe -charset UTF8 -if "defined  $ExampleField" -fast2 -s "<filenames>"
Thank you for the help everyone

[StarGeek]

Being a code performance enthusiast, something that bothers me is that every tag for every file is generated to console.  I know I can use -p '' to suppress most of that output, but it still seems like the generation would bog down the run duration.

See the -TAG option as well as Reading Examples.  List only the tags you want to see and that is all exiftool will display.

In the end I just wanted '# of files failed match' and '# of files matched'.  I have been looking around but can't figure it out.

exiftool -if '$TAG' -Filename /path/to/files/

Example

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C:\>exiftool -G1 -a -s -if "$DateTimeOriginal" -Filename Y:\!temp\aa
======== Y:/!temp/aa/photo1.jpg
[System]        FileName                        : photo1.jpg
======== Y:/!temp/aa/photo3.jpg
[System]        FileName                        : photo3.jpg
======== Y:/!temp/aa/photo5.jpg
[System]        FileName                        : photo5.jpg
======== Y:/!temp/aa/photo7.jpg
[System]        FileName                        : photo7.jpg
======== Y:/!temp/aa/photo9.jpg
[System]        FileName                        : photo9.jpg
    1 directories scanned
    4 files failed condition
    5 image files read
Or to reduce the output further, ask for the name of a tag that doesn't exist. Either way, all you need is to just parse the last few lines

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C:\>exiftool -G1 -a -s -if "$DateTimeOriginal" -FakeTag Y:\!temp\aa
======== Y:/!temp/aa/photo1.jpg
======== Y:/!temp/aa/photo3.jpg
======== Y:/!temp/aa/photo5.jpg
======== Y:/!temp/aa/photo7.jpg
======== Y:/!temp/aa/photo9.jpg
    1 directories scanned
    4 files failed condition
    5 image files read

[QGtKMlLz]

I see the problem with my   -p ' '   now, with the new way I am doing it; it causes my powershell Diagnostics.Process entry method to be cleared before it is displayed to console (not a functional problem, but makes it hard with troubleshooting).

If I change  -Tag  to my field,   -ExampleField   , that does help by removing the QuickTime Minor errors, but it keeps '# failed' (better than -m, which would have also remove '# failed'). 

I just wish it did not display the:

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=========<file paths>

[Phil Harvey]

I just wish it did not display the:

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=========<file paths>

I see no way around this if you want the summary messages.

- Phil