Gnome Terminal

Gnome Terminal is a terminal emulator for the GNOME desktop environment. Gnome terminal allows users to execute commands using a real shell while remaining on their graphical desktop.

With this application you can do the following:

Switch to 'root' and issue commands Change file permissions SSH, Telnet, FTP, etc. to other system remote shells. Restart system services Manage applications

Create/Run scripts Run system utilities Launch Graphical tools Check network connections

Basic Usage

Basic Usage

Gnome Terminal is similar to the xterm terminal emulator, and has a nearly identical feature set.

(For a larger image, click on the following (click here)

You can access this application in the following ways:

• Computer ▸ More Applications ▸ Accessories section ▸ Terminal.
• Right Click on your system's Desktop ▸ Open Terminal
• From the command line, type: 'gnome-terminal &' to start another terminal session.

Switching to Administrator

Switching to Administrator

Many times in order to execute administrative commands, users must first switch to 'root' :

1. Right click the desktop, and on the shortcut menu, click Open Terminal. (or locate the Terminal icon from the menu)
2. Type su - and press Enter.

   su -
   Password: ******

3. Enter the root password to gain administrator access.
   
   
   
   

Example Usage

Example Usage

The following is a brief list of commands which can be executed from within the gnome terminal session.

Command	Description	Example
df -h	shows disk usage, in this example the main partition ( / ) is consuming 15G (40%) of space with 23G available	df -h Filesystem Size Used Avail Use% Mounted /dev/Vol00 39G 15G 23G 40% / /dev/sda2 92M 18M 69M 21% /boot
/sbin/swapon -s	Shows swap size, and amount used, in this example the swap is 4GB with 0 of it in use	Filename Type Size Used /dev/LogVol01 partition 4095992 0
/sbin/ifconfig	shows ip address information in this example tun0 (AT&T) has an ipaddress of 9.48.55.113 assigned to this system	tun0 inet addr:9.48.55.113 Mask:ffffff RX bytes:11060372 (10.5 MiB) TX bytes:2669921 (2.5 MiB)
reboot	Reboots the system	reboot System is rebooting ..
vncserver	start a remote shared desktop	vncserver Give password to access desktops. Password: ****** Verify: ****** New 'x.x.x.x:1 (root)' desktop
ssh host.ibm.com	connect remotely to another system over ssh	ssh lnx45.ibm.com quickm@lnx45.ibm.com's password: ****** Welcome to LNX45 $
ping www.host.com	Test the network connection in this example, we have a successful connection to the Internet	ping www.google.com PING www.google.com (64.233.169.104) 64 bytes from 64.233.169.104) time=72 ms 64 bytes from 64.233.169.104) time=71 ms 64 bytes from 64.233.169.104) time=74 ms
ps -e ps -ef	List processes and their IDs in this example, we have obtained the Process ID (PID) for the Firefox web browser	ps -e | grep firefox 4562 ? 00:01:06 firefox
kill kill -9	Terminate a process from the command line in this example we kill the process ID 4562. If this process does not terminate on it's own use the -9 option to force it. Use 'ps -e' to check if it still exists.	kill 4562 kill -9 4562
killall	Terminate all instances of a process by it's name in this example we terminate all of the firefox process(es)	killall firefox
locate updatedb	Use locate command to find files using a cached list. to update the cached list, as root type updatedb in this example we search for a file	locate TheLostAges.* /home/ibm_user/TheLostAges.rtf /home/ibm_user/TheLostAges.pdf /tmp/TheLostAges.rtf /tmp/TheLostAges.pdf
grep to narrow searches	grep can be used to narrow a search in this example, grep is used to only show results in the ibm_user's home folder only by showing results which contain the word 'ibm_user' in it notice that the two files in /tmp did not print to the screen	locate TheLostAges.* | grep ibm_user /home/ibm_user/TheLostAges.rtf /home/ibm_user/TheLostAges.pdf
rpm -qa rpm -qa | grep	rpm is the RHEL\SuSE\etc. (RPM based) package manager command in this example rpm -qa is being confirm vnc packages are installed. If the packages were not installed the command would have returned nothing.	rpm -qa | grep vnc vnc-server-4.1.2 vnc-4.1.2
rpm -Uvh yum install	working off of the previous example, rpm can also be used to install a package if it is located on your system. Similarly, yum install is an easier way of installing packages in this example, instead of downloading a package and installing it with rpm -Uvh vnc*.rpm , use yum to install vnc.	yum install vnc*
yum update yumex	Using yum to update works off of the IBM Software shopper, to launch the graphical updater, type yumex. in this example yum update installs all of the updates from the command line	yum -y update

Further Information

Further Reading and Information

For more information regarding gnome-terminal , please refer to the following external website:

• http://en.wikipedia.org/wiki/GNOME_Foundation