Linux and Shell Scripting

1.Create 10 directories and 5 files in each directory A. mkdir dir{1..10} && touch dir{1..10}/file{1..5} 2.Open 2 terminals parallely and redirect output to from one terminal to other A.  In linux every thing is tretaed as a file.So get the file corresponding to current terminal using tty command in terminal 1 and redirect ouput from terminal 2 to terminal 1         a)Open 2 terminals, either ssh sessions or 2 terminals        b)Execute tty command in terminal 1, it will display file corresponding to current terminal session          Eg:/dev/pts/1        c)switch to terminal 2 and execute below command        echo "This is sample text" >> /dev/pts/1        d)now you can observe the ouput will be redirected to terminal 1  3. Difference between mnt and media in linux file system, which is used for mounting If you plug in an external device it...

 Add new disk to Linux:(Disk Management) 1.Traditionl fdisk 2. LVM Start reading those 4 blogs to cover all topics: Create partitions: here Extend partitions: here Delete partitions: here Logical volume manager: here dditional points I would like to add in lvm are: If you create partions using method one, then you need to pass option of parttions in pvcreate Eg: pvcreate /dev/sdb1 /dev/sdc1(Instead of /dev/sdb and /dev/sdc) If you follow method 1 for creating partitions, don't forget to use 'partprobe' command after creating partions using fdisk, because kernel shoud know the partions created. Extending LVMs: here 1.Traditionl fdisk Clear video: here   and clear notes here   and very imp notes here (Creating logical partions using extended partitions) In MBR partition scheme it allows us to create a maximum of 4 partitions only, in order to create more partition we have to choose the extended partition, from this extended partition we can create more logical par...