mk90.commands

Command reference

All 33 registered shell commands in MK90/Unix 0.6.

Command summary

Command	Synopsis	Description
beep	`beep`	Emit a short tone through the internal buzzer.
cat	`cat file`	Write file bytes to standard output.
cd	`cd [directory]`	Change the shell’s current directory.
clear	`clear`	Clear the text console and reset its cursor.
cp	`cp source destination`	Copy one regular file, including between volumes.
date	`date`	Read the RTC date as YY-MM-DD.
devices	`devices`	List configured block-device slots and access flags.
echo	`echo [word [word [word]]]`	Write up to three argument tokens to standard output.
edit	`edit [file]`	Open the text editor, with BASIC macros for .bas files.
exec	`exec program.mbx`	Execute a compiled MBX1 BASIC program.
help	`help [command]`	List command names or display the compact guide for one command.
kill	`kill pid`	Mark background slot 1 or 2 as finished.
less	`less file`	View text one eight-row page at a time.
ls	`ls [path]`	List a directory or describe one regular file.
mbc	`mbc source.bas`	Compile an MBC-16 BASIC source file on the MK90.
mem	`mem`	Display the configured RAM, ROM and editor limits.
mkdir	`mkdir path`	Create one directory on a mounted writable MKS2 volume.
mkfs	`mkfs device capacity`	Initialize one supported-size writable cartridge as MKS2.
mount	`mount [device mountpoint]`	List mounted volumes or mount an MKS2 volume.
mv	`mv source destination`	Move or rename one regular file.
pipe	`pipe`	Display the compact pipeline usage guide.
ps	`ps`	Display task slots, states, names and application counters.
pwd	`pwd`	Print the normalized absolute current directory.
rm	`rm file`	Delete one regular file.
rmdir	`rmdir path`	Remove an empty directory.
romtest	`romtest`	Check the full boot ROM and repeated cartridge switching.
run	`run count\|pulse [count]`	Start one of the two built-in background worker types.
sleep	`sleep seconds`	Suspend the foreground command while other tasks continue.
time	`time`	Read the RTC time as HH:MM:SS.
uart	`uart`	Display the UART configuration placeholder.
umount	`umount mountpoint`	Clear a volume’s mounted state.
uname	`uname`	Display the operating-system name and version.
wait	`wait pid`	Wait for one allocated background slot to finish.

Conventions

Square brackets mark optional arguments; they are not typed. Alternatives in a synopsis are choices, not a literal pipe character. In an actual command line, | creates a pipeline. Commands are case-insensitive; paths are case-sensitive. Read the shell grammar.