If you want to randomly use one of the matching quotes it seems the combination of filter and read is way to go. A couple of changes to the filter command:
filter -ffc c:\info1.txt c:\out.txt * $+ $1- $+ *
or:
filter -ffc c:\info1.txt c:\out.txt $+(*,$1- ,*)
The -c switch clears the output window/file before writing to it.
The “*”s make the search wild, the way you had it the match would have to be exact from beginning to end, except for case.
Also as a matter of general practice I wouldn’t use the root C:\ folder that way, I’d make a subfolder of your mirc folder.
