Monthly Archives: November 2016

How can we make our android mobile cctv camera without costing

hii friends . In this tutorial , i will tell you  how  we cam make our android mobile CCTV camera without external costing . Its a very simple trick   all  we need is one laptop or computer and  android mobile hots pot connectivity. Continue reading


what is loop devise ? and how to create loop in redhat linux

hello guys today we will learn how to create loop before we know what is loop .loop device is  connected to an existing file in the filesystem.

at fast we create blank 200mb file
# dd if=/dev/zero of=file bs=m1 count=200 (create for blank file )
# losetup /dev/loop0 file (configure loop0)
# losetup -a (looking for loop0)
# mkdir data (create data folder )
# mkfs.ext3 /dev/loop0 (format loop0)
# mount /dev/loop0 data (loop is mount in data folder)
# df -h (looking for mount loop0)

we can remove to following cmd..
at fast we remove permanently go to vim /etc/fstab and umount
# umount data ( loopo unmount to data folder )
# losetup -d /dev/loop0 (delet loop0)
# losetup -a
# rm -rf file (delet foe file)

How to create a text file in linux redhat

this tutorials in we learn how to create simpl text file in linux  we follow just simple cmd or put code in linux

# vim hello.txt    (we can create simple text file to vim cmd  when we put enter then we look some file look space on desktop then we push ( I ) later through keybord after we can write aney data or matter in file when we complet our work then we push Ese key then push ( : )

then if we press (w q ) w q is for file saving

wq  is  seve and exit file

q  is only exit file without aney save and changeing

we can also create file touch  cmd through

# touch hello

# touch demo.txt