----------
network address : An address that indentifies the local network of which a computer is a part.
network mask : Numeric code that resembles an IP address. Correctly route data packets between different networks.
broadcast address: IP address that a computer on a network can use to send a packet to all computer on network.
gateway address: Computer attached to two or more networks that enables communications.
----------
-d
-n
-v
-x
----------
compiler: A program that coverts the source code of a complied language into a binary file.
interpreter: A Program that converts the source code written in an interpreted language into numeric codes that a computer can execute
IDE: Low cost east to manage interface used by most computers to connect hard disks and CD-ROM drives to the CPU
RAD: A software program that simplifies development of complex software, provides prewritten modules.
----------
0 to 10
0 to 100
0 to 255
1 to 500
----------
Linux Certified Administrator
Linux+
LPIC1
Certified Linux Engineer program
----------
by the kernel
from a command line
from a graphical desktop
All of the above
----------
Use the beginning of a command
Use the history number
Search the history list
All of the above
----------
click and drag to select text
double-click text
select and press F4
select and press Ctrl+c
----------
press F1 key during startup
press Ctrl+F key during startup
hold both mouse buttons during startup
it depends on the system, there is no standard
----------
top- list of processor activities in real time
top -f (does not exist)
top -o ps (does not exist)
top z (does not exist)
----------
testscript
run testscript
./testscript (is the proper way)
exec testscript
----------
/dev/eth0 (this is main Ethernet controller)
/etc/eth1
/net/eth0
/dev/eth
----------
for: is a looping command in shell script
fff
Ctrl+F
>
----------
{
%
[
)
----------
Ctrl+c: Kill the current process (mostly in the text mode for small applications)
Ctrl+s: Stop the transfer to the terminal
Ctrl+x
Ctrl+z: Send the current process to the background.
----------
RedHatOffice
StarOffice (Before Open Office)
Officesuite
DirectOffice
----------
Integrated Development Environment: program (Graphical) provides convenient working environment for programmers multiple tools
Rapid Application Development Environment: A software program that simplifies development of complex software, prewritten modules.
Toolkit:
Shell Script: An executable file containing lines of text as you would enter them at a command line, with special lines to execute.
----------
/etc/profile: script contains configuration information that applies to every user on the system
.profile : users's home directory is also executed when the user logs in, each user can have a different .profile script
/etc/bashrc red hat linux executed for all users on the system each time a bash shell is started.
.bashrc : configuration information that a user wants to add to his or her environment.
----------
punctuation
white space: awk seperations
comments
ignored words
----------
release
version :hasn't changed for multiple years.
distribution (type of linux)
operating system
----------
touch: updates a files last accessed timestamp, creates a new file
find: helps you find objects matching exactly what you are looking for
slocate: secure locate shows anything with the text involved
dlocate
----------
hop count: refers to the intermediate devices (like routers) through which data must pass between source and destination
router number: (Default Gateway)
sequence number: script to go through linux
time to live: Number of hops before being discarded
----------
-r
--random-wait
-wait (shell script wait)
-w
----------
.
..
/
\
----------
mirror: complete copy
update:
sync: writes any data buffered in memory out to disk.
rsync: http://linux.about.com/library/cmd/blcmdl1_rsync.htm
----------
HOME: http://www.tuxfiles.org/linuxhelp/linuxdir.html
BIN: standard subdirectory of the root directory in Unix-like operating systems that contains the executable (i.e., ready to run) programs
PATH
EXE
----------
kernel: lowest level of easily replaceable software that interfaces with the hardware in your computer
binary code: a way of representing text or computer processor instructions by the use of the binary number system's digits 0 and 1
hardware
source code
----------
next
readLine: get a line from a user with editing
get: http://linux.about.com/library/cmd/blcmdl1_GET.htm
read
----------
export: marks an environment variable to be /exported/ to child-processes, so that the child inherits them
set: set - Read and write variables
use
env- http://linux.about.com/library/cmd/blcmdl1_env.htm
----------
showhistory
list
listhist
history: View your command Line History
----------
delay: (sleep command?)
shutdown: bring the system down
stop
quit
----------
if-then-else: this is the one in the book
if-then
case
switch
----------
linux
vlinux: statically linked executable file that contains the Linux kernel in one of the object file formats supported by Linux
vmlinuz: compressed Linux kernel, and it is bootable
ker
----------
/etc/passwd: linux user account details
/etc/users
/etc/group
/etc/shadow: stores actual password in encrypted format for user's account with additional properties related to user password
----------
change
update
patch
uniq: Report or filter out repeated lines in a file.
----------
file
less: does not require the whole file to be loaded in memory to view parts of it.
more
cat: cat command display file contents to a screen used with other inputs.
----------
0
1
10
20
----------
ln command: make links between files
ln command with the -s option: make symbolic links instead of hard links
link command: not valid
symlink command: not valid
----------
ls : list dirrectory contents
cp: copy files and directories
mv: move (rename) files
rm: remove files or directories
----------
!: looks familiar before
/
# used in comments
^
----------
read
write
execute
view
----------
GRUB and LILO: both boot loaders
GRUB and Live Linux
USB and LILO
DHCP and IP
----------
end
end if
fi : ends the if statement
then
----------
0.0.0.1
127.0.0.0
127.0.0.1
255.255.255.255
----------
remote host
port number
user name and password
All of the above
----------
ssh: OpenSSH SSH client
sshd: OpenSSH SSH daemon
sshclient:
sshlogin
----------
OSPF: open shortest path first
ARP: converts ip address to its corresponding physical network address
RIP: routing information protocol (book)
DNS: domain name system ip to name
----------
| : pipe information
<
>
<>
----------
reunion0
Reunion01
Rreunion01
union01
----------
name of the programmer
name of the shell
date the program was compiled
first statement of the script
----------
path directory
parent directory
superdirectory
root directory: / root
----------
next
skip
loop
continue
----------
guest
anonymous
your email address
password
----------
:
#
&
$
----------
chmod g+w report.doc: changes permission to rwx
chmod g=rw report.doc: changes group permissions to be only rw
chmod o+w report.doc: add write permission for other users
chmod 0=w report.doc: not a real command
----------
MBR: reserved for operationg systems bootloader
GRUB: new boot loader
LILO
Linux
----------
grep: searches the given file for lines containing a match to the given strings or words. by default, grep displays the matching lines.
find: is used to locate files on a Unix or Linux system
locate: improper
slocate: Secure Locate provides a secure way to index and quickly search for files on your system
----------
ipconfig start eth0
start interface eth0
ipup eth0: looks to be correct
./ifup eth0
----------
sort report.doc : sort - sort lines of text files
sortfile report.doc
grep report.doc
diff report.doc
----------
switch
use
user
su: su - run a shell with substitute user and group IDs
----------
/etc/passwd: linux user account details
/etc/password
/etc/group
/etc/shadow: stores actual password in encrypted format for user's account with additional properties related to user password
----------
-a
-f
-l
-z
----------
number of words: wc -w
number of lines, words and characters: wc
number of words, paragraphs, and pages:
number of words and lines wc -l is lines
----------
Alt+Tab
Ctrl+d: exit command prompt
Ctrl+Alt+Backspace
Ctrl+Alt+Delete
----------
zip and unzip
compress and uncompress
bzip2 and bunzip2
gzip and gunzip: this is whats used in linux.
----------
File names with the digits “18” followed by any other digits
Lines containing the word “President” or “president”
File names that end with TIFF,TIF,Tif,Tiff, tif, or tiff
All of the above
----------
echo Your file was processed on ‘date +%m/%d/%y’
echo Your file has been processed
echo \;
cp file /tmp
----------
[nwells@inverness nwells]$
<nwells@inverness>#
[prompt]$
>
----------
ZZ
:w!
:q!
:s
----------
telnet: command is used to communicate with another host using the TELNET protocol.
SSH
rsh: rsh - remote shell
rlogin: Connects a local host with a remote host.
----------
/etc/profile
.profile
/etc/bashrc
.bashrc
----------
root
regular
special
system
----------
-a
-c
-r
-z
----------
MACIP
DNS
DHCP
ARP
----------
$abc
[^abc]
[abc]
{abc}
----------
/dev
/bin
/sbin
/var
----------
a
A
i
I
----------
Shift+G: goto last line in file
Shift+End
Shift+E
:end
----------
h
j
k
l
----------
Dennis Ritchie: created the C programming language
Ken Thompson: thompson designed and implemented the original Unix operating system
Richard Stallman: http://en.wikipedia.org/wiki/Richard_Stallman freedom activist
Linus Torvalds: principal force behind the development of the Linux kernel
----------
Dennis Ritchie: created the C programming language
Ken Thompson: thompson designed and implemented the original Unix operating system
Richard Stallman: http://en.wikipedia.org/wiki/Richard_Stallman freedom activist
Linus Torvalds: principal force behind the development of the Linux kernel
----------
$0
$1
#0
#1
----------
help: -h or -help show specific commands
show
?
man
----------
chuser
chown: change ownership (in book)
modown
own
----------
-d
-f
-n
-v
----------
Alt+S
Ctrl+A
Ctrl+z: Send the current process to background
Shift+C
----------
User
Other
Group
Standard
----------
Unmapping
Hashing
Resolving
Mapping