Important keyboard shortcuts in Linux Shell(BASH)

Following keyboard shortcuts are very useful while working in Bash

1. Ctrl +u Cut the current line
2. Ctrl+y Paste the line which has been earlier with Ctrl +u
3. Ctrl +l clear the screen
4. Ctrl+G get the new line and abandon the current line
5. Ctrl+a go to beginning of the line
6. Ctrl+e go to End of line
7. Ctrl+k Erase from the cursor to the end of line
8. Ctrl +r search in the history
9. Ctrl+w cuts a word backwards
10. Ctrl+d  Tired of typing 'exit' to close a terminal? Just hit ctrl+d on a blank line and boom!
11. Ctrl+right - Jump one word to the right.
12. Ctrl+left - Jump one word to the left.
13. ALT+DEL Delete word(s) to the left of the cursor
14. !! Repeat last command 

There are some situation when i want to read the log as well redirect it to some file for later view. 

some_command | tee output.txt 

if you want to redirect both STDERR(2) and STDOUT(1) to the same thing then we can use 2 >&1

some_command >big_blob_of_crap.txt 2>&1

The output of the ‘come_command’ is redirected to a ‘big_blob_of_crap.txt’ and the error channel (that is the ’2′ is redirected to a pointer (?) of the output (‘&1′).
So stderr goes to the stdout and that goes to the file.

some_command &>big_blob_of_crap.txt

If you want to redirect STDERR and STDOUT to a single file and at the same time, you want to view them on the screen then we can use use

some_command |tee big_blob_of_crap.txt 2>&1