Eliminate a special character
 

I tried to eliminate the double character == with sed: but it also eliminates the character =.
I want to know how I can change it to remove only ==

what about:
s/==//g;

i try this but it dosen't work

?
would be nice to see an example or detailed description. a simple "does not work" does not work.

this is an example:

as you see the name and amount are coded and I want to remove the double == without touching the operator =

Then please try what was suggested

and what is the problem with s/==//g ?

This is entirely correct.

@OP you need to be more descriptive, we're not mind readers and we can offer a solution. Odds are this solution is not always a "one of" and as a result there are a variety of possible test cases where you'd need to alter different patterns. The issue there are that you need to describe the total conditions of your problem. Otherwise just saying "it didn't work" is a waste of time, because pan64's recommendation does work for your test string.

Saying "it doesn't work" isn't especially informative. What happened? Did the computer crash? Was the input file destroyed? Was the output file identical to the input file? Was the output file created but contained no lines? Was the output file not created at all? Something else?

Perhaps there is an ambiguity in the problem statement. One person might think you want to change abc==def to abcdef and another person might think you want to change abc==def to abc=def.

Did you consider using tr -s "=" ?

Daniel B. Martin