ed /pattern/ command

[Christoph Kukulies]

I want to edit a file in several places that contain a certain pattern.

file:

title
a
b
c
title
a
b
c
title
a
b
c

My command file:

#!/bin/sh
ed grub.conf <<EOF
/title/
a
password --md5 \$1\$Bg2gu/\$Zv3cGRU19XWCrU.963Cs71
..
w
q
EOF


How can I add the line after every occurence of "title" ?

Please cc me.

--
Chris Christoph P. U. Kukulies kukulies (at) rwth-aachen.de

[Christoph Kukulies]

Fletcher Glenn <fandmgiiNOSPAM@pacbell.net> wrote:

> "Christoph Kukulies" <kuku@accms33.physik.rwth-aachen.de> wrote in message
> news:bee0re$5de$1@nets3.rz.RWTH-Aachen.DE...

>> I want to edit a file in several places that contain a certain pattern.
>>
>> file:
>>
>> title
>> a
>> b
>> c
>> title
>> a
>> b
>> c
>> title
>> a
>> b
>> c
>>
>> My command file:
>>
>> #!/bin/sh
>> ed grub.conf <<EOF
>> /title/
>> a
>> password --md5 \$1\$Bg2gu/\$Zv3cGRU19XWCrU.963Cs71
>> .
>> w
>> q
>> EOF
>>
>>
>> How can I add the line after every occurence of "title" ?
>>
>> Please cc me.
>>
>> --
>> Chris Christoph P. U. Kukulies kukulies (at) rwth-aachen.de
>>

> Instead of the two lines:

> /title/
> a

> Try the following:

> g/title/s/$/^M password --etc/

probably I'd have to escape the $ from the shell.

> The "g" command says "on every line containing the pattern".
> The "s" command says "substitute the second pattern for the first".
> $ is the end of the line.

Sure, that is all known but I tried to prepend the /title/ with a g(lobal)
and it didn't work. Why does it not work with the a(ppend) command?

Or is it that your solution is a one line command and mine is
spread over several lines? Could I pack the a(ppend) stuff in
a oneliner also?

> ^M is produced by entering "control-V" followed by "return(or enter)".

Or typing ^V^M (control-V, control-M) (keyboard travel optimized :-)

Yes, I know that (^V escape)

> You might also have to add another ^M to the end of the pattern.

Thanks.


--
Chris Christoph P. U. Kukulies kukulies (at) rwth-aachen.de

[Fletcher Glenn]

Christoph Kukulies wrote:

>
> Fletcher Glenn <fandmgiiNOSPAM@pacbell.net> wrote:
>

> > "Christoph Kukulies" <kuku@accms33.physik.rwth-aachen.de> wrote in message
> > news:bee0re$5de$1@nets3.rz.RWTH-Aachen.DE...

> >> I want to edit a file in several places that contain a certain pattern.
> >>
> >> file:
> >>
> >> title
> >> a
> >> b
> >> c
> >> title
> >> a
> >> b
> >> c
> >> title
> >> a
> >> b
> >> c
> >>
> >> My command file:
> >>
> >> #!/bin/sh
> >> ed grub.conf <<EOF
> >> /title/
> >> a
> >> password --md5 \$1\$Bg2gu/\$Zv3cGRU19XWCrU.963Cs71
> >> .
> >> w
> >> q
> >> EOF
> >>
> >>
> >> How can I add the line after every occurence of "title" ?
> >>
> >> Please cc me.
> >>
> >> --
> >> Chris Christoph P. U. Kukulies kukulies (at) rwth-aachen.de
> >>

>

> > Instead of the two lines:

>

> > /title/
> > a

>

> > Try the following:

>

> > g/title/s/$/^M password --etc/

>
> probably I'd have to escape the $ from the shell.
>

> > The "g" command says "on every line containing the pattern".
> > The "s" command says "substitute the second pattern for the first".
> > $ is the end of the line.

>
> Sure, that is all known but I tried to prepend the /title/ with a g(lobal)
> and it didn't work. Why does it not work with the a(ppend) command?
>
> Or is it that your solution is a one line command and mine is
> spread over several lines? Could I pack the a(ppend) stuff in
> a oneliner also?
>

> > ^M is produced by entering "control-V" followed by "return(or enter)".

>
> Or typing ^V^M (control-V, control-M) (keyboard travel optimized :-)
>
> Yes, I know that (^V escape)
>

> > You might also have to add another ^M to the end of the pattern.

>
> Thanks.
>
> --
> Chris Christoph P. U. Kukulies kukulies (at) rwth-aachen.de

The 'g' command is only in effect for that one line. Any commands
that follow the 'g' command are not affected by it.

--
Fletcher Glenn
email [email]f-g-l-e-n-n@quest.com[/email] (remove the dashes)

[Christoph Kukulies]

Fletcher Glenn <fandmgiiNOSPAM@pacbell.net> wrote:

> g/title/s/$/^M password --etc/

> The "g" command says "on every line containing the pattern".
> The "s" command says "substitute the second pattern for the first".
> $ is the end of the line.
> ^M is produced by entering "control-V" followed by "return(or enter)".

> You might also have to add another ^M to the end of the pattern.

> YMMV,

Indeed, my mileage varies. I'm getting ^M literally inserted rather
than a line feed.

--
Chris Christoph P. U. Kukulies kukulies (at) rwth-aachen.de

[Mark Wooding]

Fletcher Glenn <fandmgiiNOSPAM@pacbell.net> wrote:

> g/title/s/$/^M password --etc/

Yeuch.

g/title/a\
password --whatever\
..

-- [mdw]

[Christoph Kukulies]

Mark Wooding <mdw@nsict.org> wrote:

> Fletcher Glenn <fandmgiiNOSPAM@pacbell.net> wrote:

>> g/title/s/$/^M password --etc/

> Yeuch.

> g/title/a\
> password --whatever\
> .

Hhmm. Doesn't work. Gives the typical

48
?

--
Chris Christoph P. U. Kukulies kukulies (at) rwth-aachen.de

[Mark Wooding]

Christoph Kukulies <kuku@accms33.physik.rwth-aachen.de> wrote:

> Hhmm. Doesn't work. Gives the typical
>
> 48
> ?

How strange. I tested it on Linux and Solaris, so I doubt I've done
anything particularly weird. You remembered the backslash-newlines?

-- [mdw]