Very Computer

Thanks for your help
Regards
Murray
--
Murray Barton             | When a man despoils a work of art we call him
Perth, Western Australia  | a vandal; when he despoils a work of nature

        for file in $files
        do
                echo "1d
w" | ed -s $file
        done

soren

 > I need a script to delete the first line (only) of a bunch a
 > files.  The  first line is blank all the other lines in the file
 > start with a  whitespace and an asterix " *".

If you have the "tail" command:

        # rmfirst - remove first line
        for File
        do
            tail +2 "$File" > tmp$$ && mv tmp$$ "$File"
        done

If you prefer "sed":

        # rmfirst - remove first line
        for File
        do
            sed 1d "$File" > tmp$$ && mv tmp$$ "$File"
        done

Heiner
--
   ------------------------------------------------------------------


------------------------------------------------------------------
:q!ZZ^X^Cquit^Mexit^J^D^Cbye^Mlogout^M^?^\xxxxalles kacke

:  > >
:  > >  > I need a script to delete the first line (only) of a bunch a
:  > >  > files.  The  first line is blank all the other lines in the file
:  > >  > start with a  whitespace and an asterix " *".
[cut]

# to pass file to stdout: (in csh: quote "!")
sed -n 1!p filename >filename2

# to change file permanently:
ex -c '1d|w|q' filename

|> >


|> >:  > >
|> >:  > >  > I need a script to delete the first line (only) of a bunch a
|> >:  > >  > files.

        for file
        do
                ed - $file <<-!
                        1d
                        w
                        q
                !
        done

jon

Less cryptic and shorter:

        for file
        do
                awk 'NR>1' $file
        done

Stan.
--
HELP!  I'M BEING HELD PRISONER IN A .SIGNATURE FACTORY!

Quote:>Less cryptic, shorter and no good:

>    for file
>    do
>            awk 'NR>1' $file
>    done

The best solution is (in csh, since you are going to just do this from
the command line - no reason to write a script for it - and of course,
anyone with any self-respect is running tcsh [that's not flame bait at
all, is it?]) :

% foreach i (...)
foreach? ex '+1d|x' $i
foreach? end

There.  Any *more* questions?

************************************************************************
Smiley captioned version available for the humor-impaired.
Email for price and availability ;-)

          hundreds, if not thousands, of dollars, every time he posts -
************************************************************************
rwvpf wpnrrj ibf ijrfer

Well, as Jon pointed out to me in email, his rewrites the file
whereas mine requires a (trivial) mod to write to a temp file and
mv it back.

If you will permit me:
        for file
        do
                awk 'NR>1' $file > /tmp/tmp.$$
                mv /tmp/tmp.$$ $file
        done

Happy now?

Also, this will likely be more reliable after a system crash during
its execution, although I know systems don't crash any more these
days :-).

:The best solution is (in csh, since you are going to just do this from
:the command line - no reason to write a script for it

This I disagree with.  There might be something continually running
in the background where one wants to keep the "last 10" of something
in a file (for example).  It seems to me that this is the most
probable reason for wanting to do such a thing (but we can only guess
what the original poster's reasons were).

:- and of course,
:anyone with any self-respect is running tcsh [that's not flame bait at
:all, is it?]) :

I prefer tcsh interactively (because of "dirs -v", "=0" thru "=9",
and the ability to have *both* ^H and DEL as "erase" keys).  So if they
flame, I'll defend you :-)

Cheers,
Stan.
--
HELP!  I'M BEING HELD PRISONER IN A .SIGNATURE FACTORY!

Doesn't replace the file, just spews the edited version to stdout.
The first example using ed does what the original poster wanted
(deleting the first line from a bunch of files)

--Dave

I prefer zsh or bash actually.

C shell weenies would probably like zsh.  Quite a bit smaller than tcsh,
noticeably faster, and it supports both csh weenie type commands and
proper Bourne shell type commands.

So there. ( :PPP while we're all acting like a bunch of five-year-olds. :-) )

Oh, yeah.  Since this seems to be an important feature for you, zsh
allows both ^H and RUBOUT as "erase" keys.

--Dave

: Good, but not quite there, Jon.

: >Less cryptic, shorter and no good:
: >
: >  for file
: >  do
: >          awk 'NR>1' $file
: >  done

: Somehow, I don't think the goal of the exercise is to display all that
: text on the screen.  You get to stay behind and clean the erasers.

: The best solution is (in csh, since you are going to just do this from
: the command line - no reason to write a script for it - and of course,
: anyone with any self-respect is running tcsh [that's not flame bait at
: all, is it?]) :

: % foreach i (...)
: foreach? ex '+1d|x' $i
: foreach? end

: There.  Any *more* questions?

Yeh, can't you do this without an editor?
(in bourne)
for i in filea fileb ..... filex
do
tail +2 $i > $i.new
done

That way you can check to be sure you didn't blow away your original files
if you made a typo.  I hate going to backup tapes because of typos.
: ************************************************************************
: Smiley captioned version available for the humor-impaired.
: Email for price and availability ;-)

:         hundreds, if not thousands, of dollars, every time he posts -
: ************************************************************************
: rwvpf wpnrrj ibf ijrfer

--

URL: http://www.celestial.com         One Mercer Plaza, Suite S100
                                      Mercer Island, WA 98040; (206) 236-1676
Manufacturer of InterRack (Internet-in-a-Rack), a full turn-key
system, including all the hardware, software, installation, setup, training
and support for businesses and Internet Service Providers

-zefram