TCL

if you need your output file named exactly like your input file then use a little TCL expression in the file knob of the write node suggestion your filename convention is like: //path/to/file/filename.pattern.ext then: [lindex [split [lindex [split [knob [topnode].file] .] 0] /] end] will give you back just the "filename" part of the original read node if you want…