Radio Shack TRS-80 Model 4 Owner's Manual page 105

PURGE
Command
PURGE [partspec] :drive [(parameters)]
Quickly deletes files from the disk in drive.
You can use PURGE to remove all or some of the files on a disk with
one command.
The parameters are:
QUERY
=
NO automatically removes files without prompting for
each one.
MPW
=
"password" states the disk master password
INV removes the invisible files as well as the visible files.
SYS removes the system files as well as the visible files.
DATE
=
"M1/D1/Y1-M2/D2/Y2"
removes the files with modify
dates between the two specified dates, inclusive.
=
"M1/D1/Y1" removes the files with modify dates equal to
the specified date.
=
"-M11D1/Y1"
removes the files with modify dates before or
equal to the specified date.
=
"M1/D1/Y1-"
removes the files with modify dates after or
equal to the specified date.
Once you enter the PURGE command, TRSDOS prompts you for the
disk's password (if it is not PASSWORD), unless you specified it with
the MPW parameter.
Then, the system displays the files one at a time. It prompts you to
remove the file or keep it. Respond with
00
to remove the file or
00
to keep it. Pressing (ENTER) skips the file.
NOTE: BOOT/SYS and DIR/SYS cannot be purged and do not
appear during execution of any PURGE command.
Examples
PURGE :0 (MPW="SECRET")
(ENTER)
purges all visible files on Drive 0 if the master password of the disk is
SECRET. If SECRET is not the master password, the purge aborts
with an error message. The purge shows each file and waits until
00,
00,
or (ENTER) is pressed before displaying the next file.
PURGE: 1 (QUERY=NO tIN'.) ,SYS)
(ENTER)
purges ALL files from Drive 1. You are not questioned before each file
is removed, as QUERY is specified as NO. Be careful with this
command because it produces a blank formatted disk.
PURGE /BAS:l (Q=NO)
CEHllID
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