On Fri, Aug 21, 2020 at 07:49:07PM +0200, john doe wrote: > Hello all, > > I'm trying to use the command provided at (1): > > $ sed '/pattern{N;N;a try\d10}' input-file > sed: -e expression #1, char 0: unmatched `{'
Are you missing a second / character after the pattern? Why are you obfuscating the command? Why not SHOW the actual command? > As I understanded, I should make a newline before the right brace. > I thought that '\d10' should do it but as shown above it does not. I have no idea how you came up with that. If you're doing this from bash, you could use bash's special $'...' quoting to pass a newline encoded as \n . Otherwise, put an ACTUAL newline inside the quotes. You know, by pressing the Enter key. That's portable to every sh family shell.