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Linux Commands

badblocks  

. (badblocks device )(badblocks hda)

df   - 

.   ,

du   . (du <directory>, du – sk <directory>, du –sh <directory> )

fsck   .   . (fsck <filesystem> )

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Linux Commands

sync  

. `sync'   .

mount   .. ,

mount –a)umount   .   . (umount <filesystem>)

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Linux Commands

dnsdomainname Show the systems DNS domain name

hostname  

domain name

ypdomainname     NIS/YPdomain name

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Linux Commands

arp  

 arp cache.

dig     domain   .

finger   . Ex: finger Deepak

ftp   . (ftp <remote systemname/ip)

ifconfig  . Ex:

ifconfig eth0 address 172.31.2.2 netmask 255.255.0.0

ifdown   . Ex: ifdown

eth0ifup  . Ex: ifup eth0

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Linux Commands

Netconf   GUI  

 Redhat .netconfig  GUI  .

netstat  

,   , ,  .  "netstar -r"   . (netsat –rn)nslookup     DNS   .

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Linux Commands

ping     ICMP ECHO_REQUEST  

. (ping <remote-host-name/ip)

route     IP   . (route, route add, route del)

showmount   NFS .

ssh     (ssh <remote systemname/ip>)

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Linux Commands

tcpdump  .  

  boolean. (tcpdump eth0)

telnet     TELNET   ,.

<remote system name/ip>)traceroute   . (traceroute <remotesystem name/ip>)

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Linux Commands

Runtime level management

exit   shell-.

halt  .

init  . (init 3)

logout  .

poweroff  .

reboot 

runlevel   .

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Linux Commands

shutdown   ,

  shutdown -h +time‘<message>`,   ,   .

Ex: # shutdown -h +10 ‘  . - .‘

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Linux Commands

passwd   . (passwd,

passwd <username>)

quota   . (quota, quota

quotaoff  .

quotaon  .

quotacheck   ,     quota.user.

edquota  

. (edquota <username>)

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Linux Commands

su  . (su -)

useradd    default  . (useradd –g <group> -s<shell> -c <comment> –d <home directory> <username>

. (userdel <user name>)

usermod  .

users  

.wall   . (wall “”)

who  .

whoami   id.

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Linux Commands

cal . (cal, cal 2005)

date   . (date, date MMDDhhmm[[CC]YY][.ss])

hwclock   CMOS .

uptime  .

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Linux Commands

ps  .

PPID-  ID ; PID- ID

Eg: ps ax |

Eg : ps –ef | grep <process>

pstree   .

pgrep  

 IDs   stdout. .

top     real-time .  

 kernel

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Linux Commands

bg 

fg 

" " -

 ID   34.

killall   .   .

pid   ID-