Re: befehl/möglichkeit für ein shellscript gesucht

[Peter Weiss <Peter.Weiss@consol.de>]

Am Fr 22.09.2006 22:35 schrieb Florian (flobee) <flobee@gmx.net>:

> Hallo
> 
> Ulf Volmer wrote:
> > On Fri, Sep 22, 2006 at 10:07:32PM +0200, Wolf Wiegand wrote:
> > > Florian (flobee) wrote:
> > > 
> > > > Ich suche nach einem Befehl für ein shellscript (bash) was in
> > > > etwas das
> > > > gleiche macht wie "pause" unter der windows konsole.
> >  
> > > Suchst Du read?
> > >  echo Press Enter to continue
> > >  read
> > >  ...
> > > 
> > > Da reicht leider kein Tastendruck, sondern es muss <enter>
> > > gedrückt
> > > werden.
> >
> > read -n1 
> Yo, das scheint es zu sein.
> Leider schweigt meine "man" über parameter.
> Wo finde ich die informationen dazu?
> [...]

read ist ein Shell-builtin, meist mit Abwandlungen in
Bourne-Shell-Varianten vorhanden:

~:1> type read
read is a shell builtin
~:1> help read
read: read [-ers] [-u fd] [-t timeout] [-p prompt] [-a array] [-n
nchars] [-d delim] [name ...]
One line is read from the standard input, or from file descriptor FD if
     the
-u option is supplied, and the first word is assigned to the first NAME,
the second word to the second NAME, and so on, with leftover words
    assigned
to the last NAME. Only the characters found in $IFS are recognized as
    word
delimiters. If no NAMEs are supplied, the line read is stored in the
    REPLY
variable. If the -r option is given, this signifies `raw' input, and
backslash escaping is disabled. The -d option causes read to continue
until the first character of DELIM is read, rather than newline. If the
    -p
option is supplied, the string PROMPT is output without a trailing
    newline
before attempting to read. If -a is supplied, the words read are
    assigned
to sequential indices of ARRAY, starting at zero. If -e is supplied and
the shell is interactive, readline is used to obtain the line. If -n is
    supplied with a non-zero NCHARS argument, read returns after NCHARS
    characters have been read.  The -s option causes input coming from a
    terminal to not be echoed.
    
The -t option causes read to time out and return failure if a complete
    line
of input is not read within TIMEOUT seconds. If the TMOUT variable is
    set,
its value is the default timeout. The return code is zero, unless
    end-of-file
is encountered, read times out, or an invalid file descriptor is
    supplied as
    the argument to -u.
readonly: readonly [-af] [name[=value] ...] or readonly -p
The given NAMEs are marked readonly and the values of these NAMEs may
    not be changed by subsequent assignment.  If the -f option is given,
    then functions corresponding to the NAMEs are so marked.  If no
arguments are given, or if `-p' is given, a list of all readonly names
    is printed.  The `-a' option means to treat each NAME as
    an array variable.  An argument of `--' disables further option
    processing.

Hth -- Peter

-- 
Peter.Weiss@consol.de                         ConSol* Software GmbH
Phone  +49 89 45841-100                       Consulting & Solutions
Mobile +49 177 6040121                        Franziskanerstr. 38
http://www.consol.de                          D-81669 München