Common settings for Linux lab environments

Common tool connections

Http://os.51cto.com/linuxman/Linux Chinese Men

Http://rpmfind.net/linux/RPM/RPM Package Download

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Bash shortcut keys

Ctrl+l Clear Screen

CTRL + C

Ctrl+u the command before deleting the cursor------CTRL +Y

CTRL +k the command after the cursor is deleted

CTRL +R History Command Search

Ctrl +d exiting the current terminal

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Modify SSH to speed up remote logins

[email protected] ~]# vim/etc/ssh/sshd_config

Usedns No (yes change)

#service sshd restart Restart SSH service

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Configure local Yum Source

[email protected] ~]# Cat/etc/yum.repos.d/dvd.repo
[1]
Name=1
baseurl=file:///mnt/
Gpgcheck=0
Enabled=1
[email protected] ~]#

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Egrep-v "#|^$" httpd.conf remove comments and spaces

Automatic mounting of Windows shares

[email protected] ~]# cat/etc/rc.local
Touch/var/lock/subsys/local
Mount.cifs-o username= "Administrator", password= "123.com"//192.168.2.88/g/yum/centos6.5//mnt/share

Yum files are not deleted after installation

[[email protected] ~]# vim/etc/yum.conf change keepcache=0 to keepcache=1, save exit

Linux displays the top and bottom 10 rows of the selected row

Grep-b 10-a Text Inputfile
-B Before
-A After

Take IP address: Grep-eo "\<[0-9]* (\.[ 0-9]*) {3}\> "file

Contents of square brackets: awk ' begin{rs= "]"; Fs= "["}nf>1{print $NF} ' file

Common settings for Linux lab environments