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

ausearch_add_regex

AUSEARCH_ADD_REGEX(3)						  Linux Audit API					     AUSEARCH_ADD_REGEX(3)

NAME

       ausearch_add_regex - use regular expression search rule

SYNOPSIS

       #include <auparse.h>

       int ausearch_add_regex(auparse_state_t *au, const char *expr);

DESCRIPTION

       ausearch_add_regex  adds  one search condition based on regular expressions to the audit search API. The search conditions can then be used
       to scan logs, files, or buffers for something of interest. You may not use this in combination with any other search expression. The  regu-
       lar expression follows the posix regular expression conventions. The search results are at the record level and not the field.

RETURN VALUE

       Returns -1 if an error occurs; otherwise, 0 for success.

SEE ALSO

       ausearch_add_expression(3), ausearch_add_item(3), ausearch_clear(3), ausearch_next_event(3), regcomp(3).

AUTHOR

       Steve Grubb

Red Hat 							     Sept 2007						     AUSEARCH_ADD_REGEX(3)