Best backup tools in Linux.

Data lose is one of the major fears of the users.Disk failures & accidents are the common cause of data lose which can occur at any time, so it's really important to keep track of our data regularly.
Backup tools comes with various features:
-enable you to identify important files and directories that are then constantly monitored and regularly backed up.
-perform incremental backups, which – after making a complete initial imprint of the directory – will then only make copies of new files or those that have changed since the last backup inorder to tackle redundancy.
-compress your data so you can store it more efficiently.
-tools that will encrypt your data when making copies.
-GUI and command line flavours

Find command demystified-2

Find command can be used to copy move or delete files as we need.
>find -name "*.mp3" -exec cp {} /path/to/folder \;
This command will move all your files to a particular /path/to/folder .

Similarly you can move or delete files.
>find -name "*.mp3" -exec cp {} /path/to/USB \;
>find -name '*.mp3' -exec rm {} \;

Find files using the ownership parameter.
>find /path/to/folder -user -name “*.doc” 

Direct the output of find command to a file.
>find / -name "*.mp3" > record.txt
This command will save the paths of all mp3 files in a txt file, record.txt.

Find command demystified.

find command is cool tool for searching lost items. Lets find the mystery in 'find':

>find -name “abc.jpg”
is directory in which file is to be searched. Eg. '.' for present working directory. '/' for root [of course without single quotes].


In using wildcards * denotes the part of file you don't remember or you're not sure. Suppose your searching the file mission-impossible-3.mov. Some of the possible find searches could be:
>find -name "mission*"
>find -name "*mission*"
>find -name "*impossible*"
>find -name "mission*.mp3"

Linux Amazing Keypresses & Commands : Set 3

1. Unmount busy drives
You are probably all too familiar with the situation - you are trying to unmount a drive, but keep getting told by your system that it's busy. But what application is tying it up? A quick one-liner will tell you:
$lsof +D /mnt/windows
This will return the command and process ID of any tasks currently accessing the /mnt/windows directory. You can then locate them, or use the kill command to finish them off.

2. su command  fast execution without logging in.
$su --c [command]
It enables you to issue a command in administrative mode directly after providing the superuser password. And when the command is executed the user is logged off to the previous user.

Linux Amazing Keypresses & Commands : Set 2

1. Some handy linux keyboard shortcuts!
[alt][tab] Walk through windows. To walk backwards: [alt][shift][tab]
[ctrl][tab] Walk through desktops. To walks backwards: [ctrl][shift][tab]
[ctrl][esc] Show the table of processes running on my system. Allow me to kill any of the processes I started (or send other signals to them).
[alt][f1] Access the K-menu ("Equivalent to MS Windows "Start" menu).
[alt][f12] Emulate the mouse using the arrow keys on the keyboard.
[alt][leftmousebutton] Drag a window to move it. Normally, I move a window by dragging its top title bar, but occassionally I manage to get it off the screen. With this shortcut, I can drag by any part of the window.

Linux Amazing Keypresses & Commands : Set 1

If you want to make your Linux working experience more comfortable & faster, then go through these commands.
1. Linux commands on the console may often span many lines, and encountering a type mistake at the beginning of the command would require you to use the slow way of punching the right/left arrow keys to traverse in the command string.
Remedy : Try Ctrl+e to move to the end of the command string and Ctrl+a to reach start. It’s the fastest way to edit a Linux command line. To delete a word in the command string, use Ctrl+w.