SED multiple line comment 1

[blarneyme]

I know this is awk, however, since it is closely related to sed...

How do you comment multiple lines at once?

For example:

# cat text
line 1
line 2
line 3
line 4
line 5
line 6
line 7

And you want to comment lines 2, 4, and 7.

# sed -i'2 s/^line/#/' text

will comment line two
or

# sed -i '2,4 s/^line/#/' text

will comment lines 2,3,4

But how to get 2, 4, and 7 at once?

 

[PHV]

want to comment lines 2, 4, and 7
'2s!^!#!;4s!^!#!;7s!^!#!'

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886