I like setting up shortcuts to frequently used commands whether I used Windows or Linux. I use the terminal often and create shortcuts to frequently used commands using “alias” feature of BASH. This has saved me considerable time in the past. However, I recently felt that if I could have a helper [...]

I refer Wikipedia frequently. I use this BASH function to help me do that from the terminal. For explanation of how this works head over here.
BASH function

# wiki

# eg: wiki India
# wiki Apple_Inc
# wiki Anglo_Saxon
wiki()
{
dig +short txt $1.wp.dg.cx
}

Example usage

prashanth@prashanth-desktop:~$ [...]