Shulou(Shulou.com)06/01 Report--

Segmenting the mac corresponding to ip by regularization

[root@room1pc01 Desktop] # cat ipmac.txt

192.168.4.5 121212452242

192.168.4.2 242426231251

192.168.4.3 242426231324

[root@room1pc01 Desktop] # vim ipmac.txt

1 192.168.4.5 12:12:12:45:22:42

2 192.168.4.2 24:24:26:23:12:51

3 192.168.4.3 24:24:26:23:13:24

~

~

~

~

~

:% s /\ (..\)\ (..\) $/\ 1:\ 2:\ 3:\ 4:\ 5:\ 6Unigram

[root@room1pc01 python] # grep-v "^ $" kb | grep-v "^ #"

# sed-I'/ ^ $/ d'1.txt delete blank lines

# sed-I'/ ^ $/ d' kb

# sed-I's / ^ / AAA/' kb

# sed-I's Universe BBB kb

# sed-I "s / ^ # an/an/" / etc/vsftpd/vsftpd.conf delete comments

# sed-I "s / ^ an / # an/" / etc/vsftpd/vsftpd.conf add comments

# sed'/ id/s/ [0-6] / 5max'/ etc/inittab

[root@vh03 00] # sed-I'/ bash/s#/bin/bash#/sbin/nologin#' / etc/passwd

[root@vh03 00] # head-1 / etc/passwd

Root:x:0:0:root:/root:/sbin/nologin

Sed-I'r / etc/passwd' 1.txt (import the contents of such a file below each line in 1.txt)

Sed-I'1R / etc/passwd' 1.txt (import content on the first line)

# sed'2 3w y.txt 'n.txt (the content is overwritten and imported without-I before exporting the second and third lines of n.txx to y.txt)

[root@st5 ~] # cat y.txt

Bbbbbbbbbb

Ccccccccc

[root@st5 ~] # cat n.txt

Aaaaaaaa

Bbbbbbbbbb

Ccccccccc

Ddddddddd

(the following two commands are equal)

# sed-n'/ bash$/s/:.*//p' / etc/passwd

# awk-F:'/ bash$/ {print $1}'/ etc/passwd

Root

Dc

forty-five

[root@room1pc01 Desktop] # awk'/ bash$/ {print $1}'/ etc/passwd

Root:x:0:0:root:/root:/bin/bash

Dc:x:501:501::/home/dc:/bin/bash

45:x:502:502::/home/45:/bin/bash

[root@room1pc01 ~] # awk'{print $1} '1.txt

[root@room1pc01 ~] # awk'/ ma/' 1.txt (the condition is specially made, and the entire line of the condition is displayed if the command is not given)

Chi l ma ni

[root@room1pc01 ~] # awk'/ ma/ {print $1} '1.txt (the first line showing the condition

Chi

[root@room1pc01 Desktop] # awk'{print NR} 'b.txt (shows how many line numbers the file has in b.txt)

one

two

three

[root@room1pc01 Desktop] # awk'/ 555 / {print NR} 'b.txt (shows the line of 555 in b.txt)

[root@room1pc01 Desktop] # awk'{print NF} 'b.txt (shows how many columns are in each row)

three

three

five

[root@room1pc01 Desktop] # awk'{IP [$1] + +} END {for (i in IP) {print iJournal IP [I]}'/ var/log/httpd/access_log

192.168.4.254 2583

:: 1 80

[root@svr5 ~] # awk'{print $1}'/ var/log/httpd/access_log | sort | uniq

80::1

2583 192.168.4.254

[root@svr5 ~] # who | awk'{IP [$1] + +} END {for (i in IP) {print IP [I]}}'

Root 2

[root@vh01 ~] # ifconfig eth0 | awk-F "[:]" / inet addr/ {print $13}'

192.168.4.1

Rpm packages can also be packaged in yum without the need for rpm-ivh * .rpm (which solves dependencies)

Date-d @ '1000'

Remove the blank lines from the file and precede the lines with data with AAA followed by BBB.

Sed-I'/ ^ $/ d'kb

Sed-I's / ^ / AAA/' kb

Sed-I's Universe BBB Universe kb

[root@room1pc01 python] # cat kb

Dasdafdsf

Fsadfas

F

# dfsadfas

# fasd

# f

# fasdfas

# df

# as

[root@room1pc01 python] # sed-I'/ ^ $/ d'kb

[root@room1pc01 python] # cat kb

Dasdafdsf

Fsadfas

F

# dfsadfas

# fasd

# f

# fasdfas

# df

# as

[root@room1pc01 python] # sed-I's / ^ / AA/' kb

[root@room1pc01 python] # cat kb

AAdasdafdsf

AAfsadfas

AAf

AA#dfsadfas

AA#fasd

AA#f

AA#fasdfas

AA#df

AA#as

[root@room1pc01 python] # sed-I's Placement BBUnip'kb

[root@room1pc01 python] # cat kb

AAdasdafdsfBB

AAfsadfasBB

AAfBB

AA#dfsadfasBB

AA#fasdBB

AA#fBB

AA#fasdfasBB

AA#dfBB

AA#asBB

The client uses vnc to synchronize the screen with the server

[root@room1pc01 Desktop] # yum provides * / vncviewer

[root@room1pc01 Desktop] # yum-y install tigervnc

[root@room1pc01 Desktop] # vncviewer

Enter ip and port for ok

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