User`s manual

UC-8410/8416/8418LX User’s Manual System Commands
B-3
Modules
insmod
insert a module into the kernel
lsmod
shows which kernel modules are currently loaded
modprobe
intelligently adds or removes a module from the Linux kernel
rmmod
remove module from kernel
Other
dmesg
dump kernel log message
zcat
Dump .gz file context
free
display system memory usage
date
print or set the system date and time
env
run a program in a modified environment
clear
clear the terminal screen
reboot
reboot or power off/on the server
halt
halt the server
du
estimate file space usage
gzip, gunzip
compress or expand files
hostname
show system’s host namebasename return filename or directory portion of
pathname
dirname
Convert a full pathname to just a path
expr
evaluate arguments as an expression
false
Do nothing, returning a non-zero (false) exit status
true
Do nothing, successfully
fdisk
Partition table manipulator for Linux
hwclock
A tool for accessing the Hardware Clock
id
Print the user identity
klogd
Kernel log daemon
logger
a shell command interface to the syslog system log module
md5sum
compute and check MD5 message digest
mesg
control write access to your terminal
mktemp
make temporary file name
nohup
No Hang Up
reset
terminal initialization
stty
change and print terminal line settings
syslogd
Linux system logging utilities
uname
Print system information, print information about the machine and operating
system it is running on
uptime
Determine how long the system has been running
xargs
build and execute command lines from standard input
yes
‘yes’ prints the command line arguments, separated by spaces and followed
by a newline, forever until it is killed.
tee
Copy standard input to each FILE, and also to standard output.