What is SSD disks ? and Its advantages ?

SSD is called as Solid State Drives
SSD is used for companly used data to improve DISK IO

Advantages :-

SSD disks are Faster than traditional hard disks.
less power consumption, heat and noice.

DIS Advantage s:-
SSd's are more expensive than traditoinal disks

HOw to create a Volume Group using specific size ?

vgcreate -s <size> <vgname>  <pvname>

Swap space in Linux ?

Swap space :-  It is useful when linux system needed more physical memory .


swapon   to see current swap devices

Fdisk commands in Linux ?

fdisk -l   to list all the disks

w- to save
d -to delete
p - primary partition
e- extended partition
n- for new partition

Ruby:- How to get the output in same line in ruby

you can try using chomp . for example

 variable=`linux`
 variable1=technotes
 output=#{variable} #{variable1}
 output =linux
 technotes

 To get in same line
 variable=`hi`.chomp
 variable=`linux`.chomp
 output=#{variable} #{variable1}
 output =linux technotes

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How mount to samba share in unix server ?

mount -t cifs //<servername>/<foldername>  mountpath