Shell Programming and Scripting

I know tr stands for table if i am not wrong but what does this whole command means can anyone give an idea ?

| tr ' ' '\n' | sed -e "s/.*[H,h][R,r][E,e][F,f]=\"\(.*\)\".*/\1/g

tr stands for translate characters.

Let me try this:

Substitute where you find a file that begins with a dot (.) followed by anything that has a capital H or lowercase h or uppercase R or lowercase r or Uppercase E or lowercase e or Uppercase F or lowercase r followed by an = sign followed by a double quote ("). \(.*\) means to save all the text on the line but only up until another double qoute (") is found. The \1 means to restore the line without leading spaces and the /g means global. /g means do it for every single line.

| tr ' ' '\n' | sed -e "s/.*[H,h][R,r][E,e][F,f]=\"\(.*\)\".*/\1/g

It's not perfect but it's my best guess for now. Someone else can correct it but it's close. (I think)

Thanks a bunch dude. i was mixing these commands with html lol.. i am new to unix so trying my best to know about scripting .