/usr/lib/scsi/cache is in scsitools 0.12-2.2ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | #!/usr/bin/wish -f
# Copyright 1993 Yggdrasil Computing, Incorporated
# You may copy this file according to the terms and conditions of version 2
# of the GNU General Public License as published by the Free Software
# Foundation.
frame .h
label .h.info -bitmap info -bg pink
message .h.message -width 300 -justify center -bg pink -text \
"Scsi Cache Page configuration - $argv."
pack .h.info .h.message -padx 10 -side left
pack .h -pady 10
message .message -width 300 -justify center -bg red -fg white -text \
"Caution! Do not turn on the write cache unless you know what you are doing."
pack .message -pady 10
source /usr/lib/scsi/generic
set button_list {wrcache rdcache dummy}
set text_list {readret writeret disprefetch minprefetch maxprefetch ceiling}
set switch {-c}
set text_descriptions {"Demand Read Retention Priority " "Demand Write Retention Priority " "Disable Pre-Fetch Transfer Length " "Minimum Pre-Fetch " "Maximum Pre-Fetch " "Maximum Pre-Fetch Ceiling " }
set label_width 35
set text_width 10
frame .f1
generate_textboxes
frame .but
checkbutton .rdcache -text "Read cache enabled"
checkbutton .wrcache -text "Write cache enabled"
checkbutton .dummy -text " "
pack .rdcache .wrcache -in .but -side left -padx 5
pack .but
pack .readret .writeret .disprefetch .minprefetch .maxprefetch .ceiling -in .f1 -pady 10 -anchor w
pack .f1 -side left -padx 3m -pady 3m
read_page $argv "-X"
read_modifiable $argv
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