Remove
From Scriptwiki
Removes the specified file.
/remove <file>
The b switch removes the file and moves it to the recycle bin.
/remove -b <file>
<file> is the file you want to delete. If the filename contains spaces, you need to use double quotes. If no special path is given mIRC assumes to find the file using the mIRC directory as basedir.
Example
Delete "moo.txt"
/remove moo.txt
Delete "my music.mp3"
/remove "my music.mp3"
Move "my file.txt" to the recycle bin
/remove -b "my file.txt"