Programs

The programs in mcos’s /bin. Each page is the program’s man page: the same text man <name> shows in the game. See the shell for how to run them.

Program	What it does
aplay	play WAV files on a sound card
cat	concatenate files and print them
clear	clear the terminal screen
cp	copy files and directories
curl	make an HTTP request
date	print the date and time
df	report file system space usage
dmesg	print the kernel’s log
du	estimate file space usage
echo	display a line of text
edit	a simple text editor, after nano
false	do nothing, unsuccessfully
find	search for files in a directory tree
free	display the amount of memory in use and free
grep	print lines that match a pattern
halt	stop the computer
head	output the first part of files
hostname	show or set the host’s name
kill	send a signal to a process
label	show or set a device’s label
less	show text a screen at a time
ln	make links between files
ls	list directory contents
lsdev	list the devices on the bus
lua	Lua interpreter
man	show a manual page
mkdir	make directories
mktemp	make a file or directory with a unique name
mount	list or mount filesystems
mv	move or rename files
nc	send and receive over TCP or UDP
poweroff	turn the computer off
ps	list the processes
rc	start, stop and enable services
rcp	copy files between computers
reboot	restart the computer
resize	set or show the terminal’s size
rm	remove files and directories
rmdir	remove empty directories
rsh	run a command or a shell on another computer
rshd	the remote shell’s daemon
sh	the shell
sleep	wait for a time
stty	show or change the terminal’s line settings
tail	output the last part of files
time	time a command
touch	make empty files
tree	list directories as a tree
true	do nothing, successfully
umount	unmount filesystems
uptime	tell how long the computer has been running
wget	download a file from the internet
yes	output a line again and again