UC-7400-LX Plus User’s Manual
System Commands
A-3
Other
1.
dmesg
dump kernel log message
2.
sty
to set serial port
3.
zcat
dump .gz file context
4.
mknod
make device node
5.
free
display system memory usage
6.
date
print or set the system date and time
7.
env
run a program in a modified environment
8.
clear
clear the terminal screen
9.
reboot
reboot / power off/on the server
10.
halt
halt the server
11.
du
estimate file space usage
12.
gzip, gunzip
compress or expand files
13.
hostname
show system’s host name
14.
basename
strip directory and suffix from filenames
15.
chroot
run command or interactive shell with special root directory
16.
dirname
strip non-directory suffix from file name
17.
expr evaluate
expressions
18.
false do
nothing,
unsuccessfully
19.
head
output the first part of files
20.
id
print real and effective UIDs and GIDs
21.
mkfifo
make FIFOs (named pipes)
22.
nice
run a program with modified scheduling priority
23.
nohup
run a command immune to hangups, with output to a non-tty
24.
reset terminal
initialization
25.
true
exit with a status code indicating success
26.
reset terminal
initialization
27.
rmmod
unload loadable modules
28.
stty
change and print terminal line settings
29.
usleep
sleep some number of microseconds
30.
xargs
build and execute command lines from standard input
31.
yes output
a
string
repeatedly until killed
Moxa Special Utilities
1.
kversion
show kernel version
2.
upramdisk mount
ramdisk
3.
downramdisk unmount
ramdisk
