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"%ProgramFiles(x86)%\Windows Media
Player\wmplayer.exe"
at a command prompt window (be sure to enclose the
command within double quotes since there are spaces in the
directory path). You might wish to do so if you are logged into
one user account, but wish to open a movie or music file that is
not accesible from the currently logged in user account. If you
wished to run the program from an administrator account, you can open a command prompt window as
an administrator or you can open a unprivileged command prompt window from
the currently logged in account and then use the runas /user
command e.g., runas /user:username
"%ProgramFiles(x86)%\Windows Media Player\wmplayer.exe"
where
username is the account name for the account from which you wish
to run the program. E.g., runas /user:jane "%ProgramFiles(x86)%\Windows
Media Player\wmplayer.exe"
to run the Windows Media Player with Jane's
account privileges. If you need to run the command from a
Windows domain
account, you can use runas /user:domainname\username
"%ProgramFiles(x86)%\Windows Media Player\wmplayer.exe"
where
domainname is the name of the domain and username is the
name of the domain user account. Once the Windows Media Player app
is open, you can then hit the Ctrl-O
keys (the Ctrl
and the letter "O" key) simultaneously to open a window where you can then
browse for audiovisual files in directories to which the other user
account has access.
netstat -a -p TCP
command at a command prompt.
The -a
parameter specifies all connections and listening
ports should be displayed while the -p
parameter can be
used to select a protocol from TCP, UDP, TCPv6, or UDPv6. If used with the
-s
option to display per-protocol statistics, the protocol
argument may be any of: IP, IPv6,
ICMP, ICMPv6, TCP, TCPv6, UDP, or
UDPv6. If you only wish to view IPv6 TCP ports in use,
you can use netstat -a -p TCPv6
. If you only wish to
see currently established connections, you can pipe the output of
the netstat
command to the find
command. E.g.,
netstat -a -p TCP | find "ESTABLISHED"
. Or, if you wished to
see all of the TCP ports on which the system was listening for a connection,
you could use netstat -a -p TCP | find "LISTENING"
. If you
wanted to see connections to a particular port, e.g., 22, for Secure
Shell (SSH) connections, you could use netstat -a | find ":ssh"
, which would show the IP addresses of the remote systems connected
via SSH, or netstat -a | find ":https"
for
HTTPS connections to web sites. If you wished to see host names rather than IP addresses, you could
add the -f
option, which displays a
Fully Qualified Domain Name
(FQDN) instead of an IP address for a remote system. E.g.,
netstat -a -f | find ":https"
. Since SSH, HTTP, and HTTPS
use TCP rather than UDP transmissions, you don't need to add the
-p
parameter.
jar xf filename.jar
command,
where filename.jar is the relevant .jar file, if you have
the Java
Development Kit (JDK) installed on the system — the JDK software
can be downloaded for free from Oracle's
Java Downloads
page.
Minecraft uses
.jar files for mods and if you wish to view the models (.json files), textures
(.png files) within a JAR file used by Minecraft, you can use the
jar xf filename.jar
command to see those. If you
copy the .jar file to a directory where you wish to extract its contents
and then run the command from the directory in which the .jar file is located,
you should see a directory named assets
appear beneath which you
can find blockstates
, lang
, models
, and
textures
subdirectories.
The .json files files, such as those you may see in a models/block
subdirectory are
JavaScript Object Notation (JSON)
files, which you can view or edit in a text editor, such as the
Windows Notepad
application. The .png files, which you may see in a textures
subdirectory are Portable Network Graphics (PNG) files, which you can
view or edit in graphics applications such as
Microsoft Paint
on Microsoft Windows systems. You can also use a tool such as
Blockbench to work with the
JSON model files and PNG images.
To change the name of a Cisco network switch, you can use
the command hostname newHostname
where
newHostname is the new name you wish to apply to the switch. To
make the change permanent so the new name is still in place after a reboot,
you can follow the command with the write memory
command.
Switch> Switch>enable Password: Switch#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#hostname Styx Styx(config)#end Styx# *Sep 23 01:14:23.917: %SYS-5-CONFIG_I: Configured from console by console Styx#write memory Building configuration... [OK] Styx#
For a Cisco network switch, to change the
default gateway
address, i.e., to specify the IP address of a router that the switch will
use, enter privileged EXEC mode with the enable
command, then
enter configuration mode with the command configure terminal
and then set the default gateway address with the command ip
default-gateway gatewayIPAddress
where gatewayIPAddress
is the address for the router you wish the switch to use. Then exit
configuration mode with the end
command. To make the change
permanent, so that it will persist after a reboot of the switch, enter
the command write memory
.
Switch>enable Password: Switch#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#ip default-gateway 192.168.1.1 Switch(config)#end Sep 23 01:26:53.415: %SYS-5-CONFIG_I: Configured from console by console Switch#write memory Building configuration... [OK] Switch#
You can view the default gateway address with the command
show ip default-gateway
.
Switch>show ip default-gateway 192.168.1.1 Switch>
If you open a
command prompt window and issue
the command netstat -anp udp
and
pipe the output
into the find
, you should also see the system is listening
on all network interfaces, i.e., 0.0.0.0, on UDP port 69.
C:\Users\Public\Downloads>netstat -anp udp | find "0.0.0.0:69" UDP 0.0.0.0:69 *:* C:\Users\Public\Downloads>
The installation program also installs a TFTP service, which is
set to run automatically when Windows boots; you can see information
on the service if you open Services and scroll through the list of
services on the system — you can open a Services window by
typing services.msc
at a command prompt window and hitting
Enter.
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:v/FALL/d
, i.e.,
type the colon key and then v
, which works
like the grep command
grep -v
to select only lines in a file that don't contain a
specified text
string.
The particular text on which you wish vim to searh is preceded and followed by
the slash
delimiter with a d
at the end to specify you wish those lines
not containing the text, e.g., FALL in this case, to be deleted. If I want to
delete only those lines that begin with FALL, I can use
:v/^FALL/d
as the
caret specifies that the text should occur at
the beginning of lines (a dollar sign, $, would indicate I wanted to select
only lines where the text was found at the end of the line). Note:
you can also use :g!/^FALL/d
to achieve the same end —
without the exclamation mark after the global command
, all
lines containing FALL would be deleted, but as the exclamation mark
represents "not", all lines not containing FALL at the beginning of the line
are deleted.
When you open the program, type d
to have the program send
a DHCP discover packet, which should result in responses from DHCP servers
on the LAN. You can type Ctrl-C
or q
to quit
the program.
[ More Info ]