How to broke/Split any file in redhat Linux Server

hello guys today we will learn how can we split any file in our linux machine its a very simple method .before we know why we split any file some time we need to send  any important data through E-mail but our data is very large. so we cant’t send through Email .so we can broke many parts in our data file and send. receiver will be collect all broke data file and make original data file. that plus point is we can split any extensions file like MP3, mp4, jpg .png.text .text PDF  everything .so let we will start just follow me

Step 1 before we will create any file in 200MB size and then we will split in nine (9) parts 

[root@localhost ~]# dd if=/dev/sda of=demo.txt bs=2M count=100
100+0 records in
100+0 records out
209715200 bytes (210 MB) copied, 2.96287 seconds, 70.8 MB/s

now we have Demp.txt  file its size  is 210 mb .

Step2 now we will split in nine (9) parts through this commands 

( Note-Actually split commands is work on  bytes so  here we gave our split size 25000000kb )

[root@localhost expirment]# split -b 25000000 demo.txt

[root@localhost expirment]# ls
demo.txt  xaa  xab  xac  xad  xae  xaf  xag  xah  xai

Step3 now we will delete our demo.txt file

[root@localhost expirment]# rm -rf demo.txt
[root@localhost expirment]# ls
xaa  xab  xac  xad  xae  xaf  xag  xah  xai

here we dont’t have demo .txt file

Step4 now we can create original file through all broken parts   

[root@localhost expirment]# cat x*> demo.txt

when we will look our directory we found our demo txt file

[root@localhost expirment]# ls
demo.txt  xaa  xab  xac  xad  xae  xaf  xag  xah  xai

its a very useful and simple method if you have any problem in this method comments here i will solve your problem

Thank you

By Vishnu sharma