These commands list or alter information about the system −
td>groups
|
Command
|
Description
|
|
chfn
|
Change your
finger information
|
|
chgrp
|
Change the
group ownership of a file
|
|
chown
|
Change owner
|
|
date
|
Print the
date
|
|
determin
|
Automatically
find terminal type
|
|
du
|
Print amount
of disk usage
|
|
echo
|
Echo
arguments to the standard options
|
|
exit
|
Quit the
system
|
|
finger
|
Print
information about logged-in users
|
|
groupadd
|
Create a
user group
|
|
homequota
|
Show quota
and file usage
|
|
iostat
|
Report I/O
statistics
|
|
kill
|
Send a
signal to a process
|
|
last
|
Show last
logins of users
|
|
logout
|
log off UNIX
|
|
lun
|
List user
names or login ID
|
|
netstat
|
Show network
status
|
|
passwd
|
Change user
password
|
|
passwd
|
Change your
login password
|
|
printenv
|
Display
value of a shell variable
|
|
ps
|
Display the
status of current processes
|
|
ps
|
Print
process status statistics
|
|
quota -v
|
Display disk
usage and limits
|
|
reset
|
Reset
terminal mode
|
|
script
|
Keep script
of terminal session
|
|
script
|
Save the
output of a command or process
|
|
setenv
|
Set
environment variables
|
|
stty
|
Set terminal
options
|
|
time
|
Time a
command
|
|
top
|
Display all
system processes
|
|
tset
|
Set terminal
mode
|
|
tty
|
Print
current terminal name
|
|
umask
|
Show the
permissions that are given to view files by default
|
|
uname
|
Display name
of the current system
|
|
uptime
|
Get the
system up time
|
|
useradd
|
Create a
user account
|
|
users
|
Print names
of logged in users
|
|
vmstat
|
Report
virtual memory statistics
|
|
w
|
Show what
logged in users are doing
|
|
who
|
List logged
in users
|
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