Try this :

find . -type f -print0 | xargs -0 -r grep -Z -L -U '[^ -~]' | xargs -0 -r flip -u 

Where the argument of grep '[^ -~]' is '[^<tab><space>-~]'.

If you type it on a shell command line, type <ctrl+v> before <tab>. In an editor, there should be no problem.

• '[^<tab><space>-~]' will match any character which is not ascii text (carry reutrn are ignore by grep).
• -L will print only the filename of files who does not match
• -Z will output filenames separated with a null character (for xargs -0)

Try this :

find . -type f -print0 | xargs -0 -r grep -Z -L -U '[^ -~]' | xargs -0 -r flip -u 

Where the argument of grep '[^ -~]' is '[^<tab><space>-~]'.

If you type it on a shell command line, type Ctrl+V before Tab. In an editor, there should be no problem.

• '[^<tab><space>-~]' will match any character which is not ASCII text (carriage returns are ignore by grep).
• -L will print only the filename of files who does not match
• -Z will output filenames separated with a null character (for xargs -0)

Try this :

find . -type f -print0 | xargs -0 -r grep -Z -L -U '[^ -~]' | xargs -0 -r flip -u 

Where the argument of grep '[^ -~]' is '[^<tab><space>-~]'.

If you type it on a shell command line, type <ctrl+v> before . In an editor, there should be no problem.

• '[^<tab><space>-~]' will match any character which is not ascii text (carry reutrn are ignore by grep).
• -L will print only the filename of files who does not match
• -Z will output filenames separated with a null character (for xargs -0)

Try this :

find . -type f -print0 | xargs -0 -r grep -Z -L -U '[^ -~]' | xargs -0 -r flip -u 

Where the argument of grep '[^ -~]' is '[^<tab><space>-~]'.

If you type it on a shell command line, type <ctrl+v> before <tab>. In an editor, there should be no problem.

• '[^<tab><space>-~]' will match any character which is not ascii text (carry reutrn are ignore by grep).
• -L will print only the filename of files who does not match
• -Z will output filenames separated with a null character (for xargs -0)