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Full Discussion: For loops with multiple variables
Top Forums Shell Programming and Scripting For loops with multiple variables Post 302507485 by sparcguy on Thursday 24th of March 2011 03:15:01 AM
Old 03-24-2011
For loops with multiple variables
Hi script gurus.

I have need to know how to use for loop with multiple variable.

Basically lets take for example /etc/passwd file has following entries

Quote:
sparcguy:*:100:100:Solaris admin +sparcguy@unix.com:/home/sparcguy:/usr/bin/ksh
aixguy:*:101:100:Aix Admin +aixguy@unix.com:/home/aixguy:/usr/bin/ksh
hpuxguy:*:102:100:Hpux Admin +hpuxguy@unix.com:/home/hpuxguy:/usr/bin/ksh
Quote:
cat /etc/passwd | grep \@ | sed 's/:/+/g' | cut -d+ -f1,6 | sed 's/+/ /g'
The above cat command will basically first greps the real users that have email addresses then converts ':' to '+' then using cut to extract the userid and email addresses using the '+' as a delimiter to produce the below output

sparcguy sparcguy@unix.com
aixguy aixguy@unix.com
hpuxguy hpuxguy@unix.com

Assuming I pipe the above output to a file called /tmp/list

I know I can just cat the file to display the above but how to I use for loop to display it instead?

Quote:
for i in `cat /tmp/list | awk '{ print $1 }'` && for j in `cat /tmp/list | awk '{ print $2 }'`
the above does not seems to work, does anybody knows how to use multiple variables in a for i in `cat file` loop?

thx in advance
 

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LEARN ABOUT HPUX

icod_notify

icapnotify(1M)															    icapnotify(1M)

NAME

       icapnotify - Test email connectivity to HP for Instant Capacity (iCAP) systems. Request a confirmation response email from HP. Turn config-
       uration change notification and asset reporting on or off.

SYNOPSIS

       icapnotify <reply_address>

       icapnotify -a on|off

       icapnotify -n on|off

       Obsolescent:

       icod_notify <reply_address>

       icod_notify -a on|off

       icod_notify -n on|off

DESCRIPTION

       When a reply_address is specified, sends an asset report via email to HP, root, and the specified email	address.   Confirmation  email	is
       sent from HP to the specified reply email address indicating that HP received the asset report email.

       Note  that asset reporting is optional but can be useful for viewing complexwide asset information at the HP Utility Pricing Solutions por-
       tal (http://www.hp.com/go/icap/portal).

       The deprecated command provides identical functionality to the command and is maintained for backward compatibility.

       For detailed information on email configuration and requirements, see the located at /usr/share/doc/icapUserGuide.pdf.

   Options
       The command recognizes these options and arguments:

	      -a on|off Turns email asset reporting on or off.	This option is used to specify if the Instant Capacity software should send  asset
			reports to HP via email.  The command displays the present setting for this option.

	      -n on|off Turns  configuration  change  notification  on	or off.  If specified on, executing the command results in a configuration
			change notification email sent to the system contact email address summarizing any  configuration  change.   Configuration
			change	notification  email  can  be turned off by specifying off.  Configuration change notifications are not sent if the
			system contact email address is not set.

EXTERNAL INFLUENCES

   Environment Variables
	      o  LANG determines the locale to use for the locale categories when both LC_ALL and the corresponding environment  variable  (begin-
		 ning with LC_) do not specify a locale.  If LANG is not set or is set to the empty string, a default of C is used (see lang(5)).

	      o  LC_CTYPE determines the interpretation of single- and multiple-byte characters.

	      o  LC_MESSAGES determines the language in which messages are displayed.

		 If any internationalization variable contains an invalid setting, icapnotify behaves as if all internationalization variables are
		 set to C (see environ(5)).

   International Code Set Support
       Single- and multiple-byte character code sets are supported.

RETURN VALUE

       The command exits with one of these values:

	      0 	Command succeeded.

	      >0	Command failed; error message sent to STDERR.

EXAMPLES

       Test email connectivity with HP by sending an asset report to HP, root , and super_user@corp.com, and request a confirmation email from	HP
       to be sent to super_user@corp.com:

	      icapnotify super_user@corp.com

       Turn email asset reporting on:

	      icapnotify -a on

       Turn email asset reporting off:

	      icapnotify -a off

       Turn configuration change notification on:

	      icapnotify -n on

       Turn configuration change notification off:

	      icapnotify -n off

AUTHOR

       was developed by HP.

SEE ALSO

       icapmodify(1M), icapstatus(1M), icapmanage(1M), icapd(1M), icap(5).

																    icapnotify(1M)
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