Question

I was wondering how I could grep all the characters that don’t fit a set of characters you want to give it.

For example, say I have a file that has the following text

XXXXX0000000HelloXXXXXX
MyXXXName0000Is00000000
XXXXXJamesXXX0X0X0X0XXX

I want it to print out “HelloMyNameIsJames” or those characters in some other fashion (if it comes out as one character per line, I would be fine with that).

Any help would be greatly appreciated!
Raymosrunerx

Answer 1

tr -d X0 < input 

Output:

Hello
MyNameIs
James

To remove line ends too:

tr -d 'X0\n' < input 

Ouput

HelloMyNameIsJames

(no trailing line end)