WattMaster WCC III part 14 - Manual (Page 43)

13B. WCC III - MCD2 INSTALLATION GUIDE
WCC III Technical Guide 13B-41
Common Linux Commands
passwd Changes your password
write username Sends a message to another person using the system. To prevent someone from writing to you, see the
mesg n command.
clear Clears the screen.
ps Displays information about your processes/jobs/programs which are running on the server.
cd Change directory; cd .. moves you backwards to the next higher subdirectory level; cd / moves you to the
highest directory level.
mkdir new_directory Makes a new subdirectory with the name specifi ed by new_directory
1. cp Copy is like the rename command use as follows “cp fi lename1 fi lename2” and this leaves the old
fi le intact and makes a new copy with a new fi lename.
df Displays how much space on the disks (hard drive partitions) is free.
rm Removes or deletes fi les; the -i option asks you to confi rm that you want to delete each fi le; the -r option is
dangerous because it allow you to delete an entire directory and all of the fi les it contains.
rmdir Removes a directory; you can use the -i and -r options which are described in the rm command.
w Provides information concerning who is logged into the system and some details on how they are connected.
who Tells you who is using the server at that time.
date Displays or changes date or time in this format Day/Month/Date - Time / Time Zone / Year
Different program than under wine cmd command line interpreter.
mv Renames a fi le or moves it from one fi lename or directory to another; the -i option tells mv to prompt you
before it replaces an existing fi lename.
help Provides online help; several topics have been included in the help system available on the servers.
ifconfi g –a Ifconfi g is used to confi gure the kernel-resident network interfaces. It is used at boot time to set up interfaces
as necessary. After that, it is usually only needed when debugging or when system tuning is needed. If no
arguments are given, ifconfi g displays the status of the currently active interfaces. If a single interface
argument is given, it displays the status of the given interface only; if a single -a argument is given, it
displays the status of all interfaces, even those that are down. Otherwise, it confi gures an interface.
Command Line prompts
/ - root directory
./ - current directory
./command_name - run a command in the current directory when the current directory is not on the path
../ - parent directory
~ - home directory
$ - typical prompt when logged in as ordinary user
# - typical prompt when logged in as root or superuser
! - repeat specifi ed command
!! - repeat previous command
^^ - repeat previous command with substitution
& - run a program in background modex[Tab][Tab] - prints a list of all available completions for a command, where the beginning is
``x’’