oracle linux fundamentals

7/24/2019 Oracle Linux Fundamentals

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Linux Fundamentals

1-8turkyalasiri@twitter

Linux Fundamentals

:/Kernel:2/Shell:

-:root:/

2/Admin.)(

-.

-dr.

ls (list)

2Ls l

3Ls l/etcetc4Touch f1 f2 f3 f1 f2 f35Clear

6Cal

7Cal 3 2014214

8Date

9Cd/Chang directory(Root)

1Ls l a t(ls -lat)

At

Passwd

2SuSwitch userroot3Su turkiturki4Pwd

5Cd..)(

6Cd /etcetc7Cd hostscd /etc/hostshosts8Cd ~/DocumentsDocumentsHOME9Cp f1 ~/ Documentsf1DocumentsHOME21Mv f1 ./f1root

2Mv /f1 /etc

*

etcf1

22mv Documents/test2 /Desktoptest2

23Cd /

24Ls a* a

25Mkdir t1 t2 t1 t2


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Linux Fundamentals


26Rm a1a1

27Rmdir t1t228Rm r t1t229Touch d{1,2,3,4} d1,d2,d3,d431Mkdir t{1,2,3,4} t1,t2,t3,t4

3

Mv t1 t6

mv

t1t6

32Cat > w1 w1ctrl d

33File w1

34Cat w1

35Cat >> w1

36Uname oLinux

37Uname -m

uname -p

38Uname -n

39Uname --help

41Uname a

4Who

42W

43Nautilus

44QQuit

45Info lsls46Whatis lsls47Man passwd

48Man:lsKonqueror

49

Who am i

=turki pts/2 2014-01-08 (0:0)Turkipts/2

51Type passwdpasswd)( 5Date;ls

52Man k calendar

calendar53Last

54Users

55Groups

56Id

57Id rootroot58Id turkiturki

59Cat /etc/passwd

61Cat /etc/group


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Linux Fundamentals


*ls l:

Drwxr-xr-x]d[ownerowner

other

R=read

w=write

x=execute

-

=

*:R=4w=2x=1=7:

4+2=6 5=4+1

Chmod 741 testfile

( 7( ()(1)4

6Chmod 741 testfile testfile7=4==

62Chmod rwxr-xr-x testfile

63Wc test.txt

=269 2442 17345

test

73452442269

64Wc l

65Wc w

66Wc c

67Ls l > text1.txt

txet1

68Cat /etc/shellsshells69Echo $HOMEHome71Echo welcomewelcome7Mkdir p 11/22/33 11121372Cd 11111173History

74Touch {1,2,3}.txt

75Rm f {1,2,3}.txt

76Rm {1,2,3}.txt

77Echo $(hostname)

78Echo "This computer name is:

$(hostname)"

79Echo "This computer name is:

$(hostname) and date is: $(date)"

81Cdhome...

homehome 8Cd~

82Cd /homehome


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Linux Fundamentals


83

Cat > myscript

#This is my first script

Echo "Greeting, the date and time

is: $(date)"

Echo "you working directory is:$(pwd)"

)(: -

#-

-

84Ctrl + d

85Chmod +x myscript( )+(

(x

) ( 86./myscript

87

Cat > myscript2

#This is myscript2

Echo "We like Linux : $(uname -a)"

Echo "This month calendar is: $(cal)"Ctrl + d

Chmod +x myscript2

)(:2

-

#

*:

localhost:631

.

.

*

88Lpr mytest

mytest

89

Lp mytest91Lpr -p hp2 testLpr -php2 testtesthp29Lpstat o

92Lpq

93Lprm 3434

94

Lpc

?

= Exit help quit status

?4status quit

exit

95Lp helplp96Head test7

test7

97Head n3 test7test798Tail test7test799Tail n5 test7test7

11Ls l > test3 | head test3

test3

(1)1More test3test312Less test3

13Ls li tes5

= 914237 rw-rw-r--. 1 turki turki 265

Jan 15 : 10:41 test5

(I-node

)

test5

94237


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Linux Fundamentals


14Ln s( soft link)i-node

(symbolic link )

15ln( Hard link)i-node

16Ln s test5 test100 test5test100

17Ls li

18Alias

19Alias d22 ='ls lat' d22ls -lat1Sort /etc/passwd) )

Sort r /etc/passwd) (

2Grep

3Grep S[ek] test7Sektest7

4Grep ^[Ss] test7Sstest75Grep ^s test7s6Grep s test7s7Grep s$ tests8Grep v [A-Za-z] test7

9Grep v [0-9] test7

21Grep root /etc/passwdroot2Grep root /etc/passwdroot22Grep root$ /etc/passwdroot23Grep /home /etc/passwd/home

24Diff A B

A,B

25Sed 's/sea/she' test7.

-seashe

26Sed 's/sea/she/g' test7seashe.g(gloobal)

27Sed e 's/sea/she/g' e 's/sun/moon/g' test728Tar cvf

29Tar cvf dir2 1.txt 2.txt dir21, 231Tar tvf dir2

3

Mkdir dir3

Cp dir2 dir3

Tar xvf dir2

dir2

dir3

dir2

32Gzip

33Gzip 1.txt 2.txt234Ls1.txt.gz 2.txt.gz35Gunzip 1.txt

36Gzip d 1.txt


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Linux Fundamentals


37Vi(Editor)38Vi test test39

iEsc

41ddEsc

4wdEsc

42HLEsc

43JKEsc

44yyEsc

45pEsc

46PEsc

47wyyEsc

48pEsc

49

Esc

/

sea

sea

n

N51

wEsc

5qEsc

52:Esc !q

53Cut fTab

54Cut f d:( )$ -d

55

Cat > test2

111 222 333

Aaa bbb ccc

Ddd eee fff

Ctrl d

Cut f2 test2

Tab

.

:

222

Bbb

Eee

56Cut f5 d: /etc/passwdpasswd

57Sleep 500)(511

58Ctrl z

[2]+ stopped

sleep

-

259Bg %2

[2]+ sleep 500&

back ground

-&.

61Fg %2forint ground

6Ps)(Ram

62Ps au (

(

63Jobs

64Kill %2

65Kill -9 %2


7/8

Linux Fundamentals


66Uniq

67Uniq tttt

68Uniq u tt

69Uniq c

71Uniq cu

7Find

72Cd /

Find name turki

root

turki

73Find perm 777

777Perm)(

74

Find . size +20 | more

20

.

enter

spice

.

*permission denied: root.

::*System/preference/about me


8/8

Linux Fundamentals


Bin

2Sbin( photo shop)

3Boot

4Dev(drivers)5Etc)( root6Home

7LibC,C++8Lost+found

9Media

1Misc)(

Mnt

cd

usb2Net

3Opt

4Proc

5Rootroot6Selinuk

7Srvserves8Sysserves9Tmp

21Usr

2Var(variables)