Comments in sed command file

Question

Can I put comments (or something functionally equivalent) into a sed command file?

subs.sed

s/this/that/g
# comment
s/it/they/g

$ sed -i -f subs.sed <(echo this it)
that they

That is a valid comment in sed syntax. What verrsion/OS are you using? — 0stone0, Jan 17 '23 at 13:56
@0stone0 I just hadn't tried that yet... I've never seen and been unable to find a sed command file syntax reference — theonlygusti, Jan 17 '23 at 14:55
So your actually question is *"Can I use comments in my sed file?"*: Yes ;) — 0stone0, Jan 17 '23 at 14:56
@0stone0 I guess. I didn't know there were comments in sed in the first place, nor any idea what their syntax might be. You can post the answer if you want — theonlygusti, Jan 17 '23 at 15:03

score 2 · Accepted Answer · answered Jan 17 '23 at 15:34

2

Yes, comments can be added to a sed file using #.

From the manual page of sed:

Command Synopsis

...
#comment
The comment extends until the next newline (or the end of a -e script fragment).

answered Jan 17 '23 at 15:34

0stone0

1 Answers1