Most likely guess (since you don't show sample data which you're expecting to match against . . .) it's because you have unquoted regex metacharacters (namely parens) which mean that the LHS of your s/// isn't able to match what you're trying to match. Unfortunately backquoting all of those from a shell prompt is going to get ugly.

Show the text you're trying to change (a before and after will help) and specify what OS you're using (shell quoting on *NIX will differ from CMD or PowerShell) and you might be able to get a more specific answer.

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re: replace string from Command Line by Fletch
in thread replace string from Command Line by pragovnj

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