(1) read an input file input.
(2) if { see a special pattern name out of a list (another file flist), delete this and the following lines until see a line with a single special character ‘/’, remove this line ‘/’ as well.}
else { just copy the content of input} Continue until flist is exhausted.
example:
…
I am a special name 1
random staff to be removed
…
more random staff to be removed
/
I am not special and should be kept
keep this line
…
keep this line
/
…
