few small scripting questions Post: 302089541

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Top Forums Shell Programming and Scripting few small scripting questions Post 302089541 by vgersh99 on Tuesday 19th of September 2006 04:06:12 PM

09-19-2006

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Quote:

Originally Posted by bebop1111116

hello everyone, i have a couple of questions about programming with shell scripts.

-My question is, how do you find out how long a sequence of numbers that has just been entered is. for example

If i enter 12345 the length here is 5
and 23456789 the length here is eight.

I want to be able to do an if statment that says if the string of numbers are a certain length do somthing, else do somthing.

doing 'man ksh' yields:

Code:

     ${#parameter}
           String Length. The length in characters of  the  value



SunOS 5.9           Last change: 24 Mar 2003                   14






User Commands                                              ksh(1)



           of  parameter.  If  parameter  is * or @, then all the
           positional parameters, starting with $1,  are  substi-
           tuted (separated by a field separator character).

Quote:

Originally Posted by bebop1111116

-My last question, how do you tell your program that if you have a number, and you divide it by another number to do one thing if it divides evenly and something else if it is not? for example

lets say i have a while statement, and i want to say while the number i have is not evenly divisiable then display a message, but as soon as it can be evenly divided display a different message. And i do have a way of changing the number i am dividing by each time.

Thanks

look into 'man bc' for the 'modulo' operand.

vgersh99

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dpkg-reconfigure

DPKG-RECONFIGURE(8)						      Debconf						       DPKG-RECONFIGURE(8)

NAME

       dpkg-reconfigure - reconfigure an already installed package

SYNOPSIS

	dpkg-reconfigure [options] packages

DESCRIPTION

       dpkg-reconfigure reconfigures packages after they have already been installed. Pass it the names of a package or packages to reconfigure.
       It will ask configuration questions, much like when the package was first installed.

       If you just want to see the current configuration of a package, see debconf-show(1) instead.

OPTIONS

       -ftype, --frontend=type
	   Select the frontend to use. The default frontend can be permanently changed by:

	    dpkg-reconfigure debconf

	   Note that if you normally have debconf set to use the noninteractive frontend, dpkg-reconfigure will use the dialog frontend instead,
	   so you actually get to reconfigure the package.

       -pvalue, --priority=value
	   Specify the minimum priority of question that will be displayed.  dpkg-reconfigure normally shows low priority questions no matter what
	   your default priority is. See debconf(7) for a list.

       --default-priority
	   Use whatever the default priority of question is, instead of forcing the priority to low.

       -u, --unseen-only
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       --force
	   Force dpkg-reconfigure to reconfigure a package even if the package is in an inconsistent or broken state. Use with caution.

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	   databases.  However, it may be useful in constrained environments where rewriting the templates database is expensive.

       -h, --help
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SEE ALSO

       debconf(7)

AUTHOR

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								    2018-02-28						       DPKG-RECONFIGURE(8)