This is why Rex Conn's add-on command interpreter for MS/PC/DR-DOS, 4DOS, had the concept of BTM scripts. BTM stands for "Batch To Memory" and 4DOS (and all of

This is why Rex Conn's add-on command interpreter for MS/PC/DR-DOS, 4DOS, had the concept of BTM scripts. BTM stands for "Batch To Memory" and 4DOS (and all of its successors through NDOS, 4NT, and 4OS2 to the current Take Command) reads the entirety of a BTM script before running it. * https://jpsoft.com/help/batchtype.htm https://jpsoft.com/help/batchtype.htm The reason that this could not be simply turned on globally for BAT scripts is that various tools made use of the original behaviour, perhaps most notably "fancy change directory" scripts and similar programs, where a wrapped executable was called from a wrapper script, and the executable rewrote the next lines of the script on the fly to do the selected action.