On 09Nov2017 13:37, Patrick Dupre <pdu...@gmx.com> wrote:
> I would like to execute a vi command as a bash command like:
> vi +:1 "+1,$s/E/e/g" "+wq" test.TXT
> But it does not work!
>
> under vi, I would do:
> vi test.TXT
> :1
> :1,$s/E/e/g
> :wq
>
> could you tell me what I am missing?
This is why you should always use single quotes (') instead of double quotes
(") unless there is some reason not to, such as _wanting_ to substitute a shell
variable into a string.
As an aside, is there a reason you want to use vi for this instead of something
like sed?
Can I make 2 substitutions on a single call with sed?
Of course! You can write whole programs in sed. It is extremely useful.
sed -i s/E/e/g test.TXT
The -i is a GNU-sed extra for pretend in place editing; it makes a temp file
with the changes then renames that to the original. That makes for an atomic
change, but means the changed file is a new one, not a rewritten old one.
"sed" is short for stream editor, it normally lives in a shell pipeline to
modify data passing through it. It has the ed command set plus some extra
things.
Those edit commands you use after ":" in vim? They are based on the ed command
set too.
Cheers,
Cameron Simpson <c...@cskk.id.au> (formerly c...@zip.com.au)
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