Johannes Sixt <j6t@xxxxxxxx> writes: > Am 30.03.25 um 07:49 schrieb Matt Hunter: >> + test $(comm -12 <(sort head) <(sort cmp) | wc -l) = "0" > > Process substitution does not work on Windows. Please use temporary files. Also it is not portable across POSIX compilant shells (IIRC it is a bash-ism).