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Full Discussion: Bash : Why are spaces important here ?
Top Forums Shell Programming and Scripting Bash : Why are spaces important here ? Post 302932225 by balajesuri on Tuesday 20th of January 2015 05:02:05 AM
Old 01-20-2015
Quote:
Originally Posted by John K
BTW ..What is ++ operator as in (( ++count )) called ?
It's known as a pre-increment operator. It means, first increment the value in count and then use it.
On the contrary, there's a post-increment operator ((count++)); which means use it first and then increment it.

It will be clear in the following example:
Code:
[user@host ~]$ x=1
[user@host ~]$ y=$((++x))
[user@host ~]$ echo $x $y
2 2
[user@host ~]$ x=1
[user@host ~]$ y=$((x++))
[user@host ~]$ echo $x $y
2 1
[user@host ~]$

These 2 Users Gave Thanks to balajesuri For This Post:
John K rbatte1
 

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LEARN ABOUT HPUX

ftphosts

ftphosts(4)						     Kernel Interfaces Manual						       ftphosts(4)

NAME

       ftphosts - ftpd individual user host access file

SYNOPSIS

DESCRIPTION

       The file is used to allow or deny access to certain accounts from various hosts.

   Access Capabilities
       The formats to allow and deny access are described in this section.

       addrglob [ addrglob... ]

	      Only allow host(s) matching addrglob to log in as username.  addrglob is a globbed domain name or a globbed numeric address.

	addrglob [ addrglob ... ]

	      Always deny host(s) matching addrglob to log in as username.  addrglob is a globbed domain name or a globbed numeric address.

       A username of or specifies the anonymous user.

       The addrglob can also be specified as address/cidr or address:netmask.  For example:

	      or

   Specifying Both allow and deny Rules
       To allow a user to login from anywhere except the listed hosts, both allow and deny rules are required.

       The following example denies the user from logging in from the host but allows login from all other hosts:

EXAMPLES

       Allow the user, to login from the host named and from all hosts with numeric addresses starting with

       Deny (do not allow) the user, to login from the host named and from all hosts with numeric addresses starting with

       Allow the user, to login from the host named

FILES

AUTHOR

       was developed by the Washington University, St. Louis, Missouri.

SEE ALSO

       ftpd(1M), ftpaccess(4), ftpconversions(4), ftpshut(1).

																       ftphosts(4)
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