Commodore PC Ms-Dos 3.2 User's Manual page 242

170 MS-DOS User's Reference
u
(w)rite Write
Purpose: M
Writes a specific number of lines to a disk.
Syntax: \\
[n]w
Comments: i j
The n option specifies the number of lines that you want to write
to the disk. You need this command only if the file you are edit
ing is too large to fit into memory. When you start edlin, it reads ^)
lines from your file until memory is 3/4 full.
To edit the remainder of your file, you must write the edited lines
in memory to your disk. Then you can load additional unedited
lines from your disk into memory by using the A (append) com
mand, which is described earlier in this chapter.
Note If you do not specify the number of lines for edlin to
write, it writes lines until memory is 3/4 full. But it does not write
any lines to your disk until memory is more than 3/4 full. Also,
edlin renumbers all of the lines so that the first remaining line
becomes line number 1.
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