Many similar solutions can be found to detect or change "illegal" characters in filenames. Most solutions require you to know the illegal characters. A solution to find those filenames often ends with something like:

find . -name "*[\ \;\"\\\=\?\~\<\>\&\*\|\$\'\,\{\}\%\^\#\:\(\)]*"

This is already quite good, but sometimes there are cryptic characters (e.g. h͔͉̝e̻̦l̝͍͓l̢͚̻o͇̝̘w̙͇͜o͔̼͚r̝͇̞l̘̘d̪͔̝.̟͔̠t͉͖̼x̟̞t̢̝̦ or ʇxʇ.pʅɹoʍoʅʅǝɥ or © or €), symbols, or characters from other character sets in my file names. I can not trace these files this way. Inverse lookarounds or the find command with regex is probably the right approach, but I don't get anywhere.

In other words: Find all filenames which do NOT match the following pattern [^a-zA-Z0-9 ._-] would be perfect. Mostly [:alnum:] but with regex the command would be more flexibel.

find . ! -name [^a-zA-Z0-9 ._-] does not do the job. Any idea?

I use bash or zsh on OSX.

CodePudding user response：

You can try

find . -name '*[!a-zA-Z0-9 ._-]*'