what does $#,$* means Post: 302302821

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Top Forums UNIX for Advanced & Expert Users what does $#,$* means Post 302302821 by ansnaveen on Wednesday 1st of April 2009 06:24:01 AM

04-01-2009

Registered User

To your problem I suggest in following way:

Basically, there are two ways of reading inputs:
Type 01: Command Line
Type 02: Interactive way
Your problem is pertaining to the Type 01: this is method is used when we do not know the numbers of arguments that are present in the command line prompt. For this shell uses positional parameters like $0, $*, $#, $?, etc .
E.g. 01:
echo �The Number of Arguments: $#�
echo �The List of Arguments�
for i in $*
do
echo $i
done

E.g. 02:
echo �The Number of Arguments: $#�
echo �The List of Arguments�
for i
do
echo $i
done

In the Type 02 method usually we are reading the inputs through read construct of shell and print the variable using for loop as fallows:
E.g. 01
echo �Enter the argument1�
read a
echo �Enter the argument2�
read b
for i in $a $b
do
echo $i
done

ansnaveen

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LEARN ABOUT DEBIAN

actdiag

ACTDIAG(1)						      General Commands Manual							ACTDIAG(1)

NAME

       actdiag - generate activity-diagram image file from spec-text file.

SYNOPSIS

       actdiag [options] files

DESCRIPTION

       This manual page documents briefly the actdiag commands.

       actdiag is a program that generate activity-diagram image file from spec-text file.

OPTIONS

       These  programs	follow	the  usual  GNU  command  line	syntax, with long options starting with two dashes (`-').  A summary of options is
       included below.	For a complete description, see the Info files.

       -h, --help
	      show this help message and exit

       -a, --antialias
	      Pass diagram image to anti-alias filter

       -c FILE, --config=FILE
	      read configurations from FILE

       -o FILE
	      write diagram to FILE

       -f FONT, --font=FONT
	      use FONT to draw diagram

       -s, ----separate
	      Separate diagram images for each group (SVG only)

       -T TYPE
	      Output diagram as TYPE format

SEE ALSO

       The programs are documented fully by
       http://tk0miya.bitbucket.org/actdiag/build/html/index.html

AUTHOR

       actdiag was written by Takeshi Komiya <i.tkomiya@gmail.com>

       This manual page was written by Kouhei Maeda <mkouhei@palmtb.net>, for the Debian project (and may be used by others).

								   June  5, 2011							ACTDIAG(1)