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Full Discussion: Forking a bunch of processes and filling up the process table
Top Forums Shell Programming and Scripting Forking a bunch of processes and filling up the process table Post 302355346 by peterro on Tuesday 22nd of September 2009 10:55:04 AM
Old 09-22-2009
First off, it looks like you have problems with the box penguinshrimp since it's the only one being left. Does it ever hang on any other machine?

Next, I'd probably simplify the script by creating two variables, one for solaris boxes and the other for Linux.

Code:
linux_boxes="first_box second_box etc"

Then have two loops that iterate through those variables so you don't have to code for each box. Adding/removing a box is as simple as modifying the variable.

Code:
for box in $linux_boxes
do
  some stuff with $box
done

Also I'd probably change the test a bit to something like:

Code:
if ping -c 3 $box > /dev/null 2>&1
then
  ssh somewhere and do something
else
  echo $box is unpingable
fi

lastly, from getting it beat into my head in high-school programming, add some spacing/formatting in your code so it's a bit easier to read/modify/debug. This is especially true when your code is more complex.

Change this:

Code:
if [ $dayname = 'Sat' ]
then
if [ $dayname = 'Sat' -a $hour = 5 -a $minute -gt 50 ]
then
if [ $dayname = 'Sat' -a $hour = 6 -a $minute -lt 30 ]
then
exit
fi
fi
fi

to this:

Code:
if [ $dayname = 'Sat' ]
then
  if [ $dayname = 'Sat' -a $hour = 5 -a $minute -gt 50 ]
  then
    if [ $dayname = 'Sat' -a $hour = 6 -a $minute -lt 30 ]
    then
      exit
    fi
  fi
fi

 

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LEARN ABOUT OSX

locale::codes::langfam

Locale::Codes::LangFam(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangFam(3pm)

NAME

       Locale::Codes::LangFam - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangFam;

	  $lext = code2langfam('apa');		       # $lext gets 'Apache languages'
	  $code = langfam2code('Apache languages');    # $code gets 'apa'

	  @codes   = all_langfam_codes();
	  @names   = all_langfam_names();

DESCRIPTION

       The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in
       ISO 639-5.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5
       language family codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language families. A code set may be specified using either a name, or a
       constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lext = code2langfam('apa','alpha');
	  $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages.

	   This is the default code set.

ROUTINES

       code2langfam ( CODE [,CODESET] )
       langfam2code ( NAME [,CODESET] )
       langfam_code2code ( CODE ,CODESET ,CODESET2 )
       all_langfam_codes ( [CODESET] )
       all_langfam_names ( [CODESET] )
       Locale::Codes::LangFam::rename_langfam  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangFam::add_langfam  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangFam::delete_langfam  ( CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangFam::delete_langfam_alias  ( NAME )
       Locale::Codes::LangFam::rename_langfam_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::delete_langfam_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.loc.gov/standards/iso639-5/id.php
	   ISO 639-5 .

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 2011-2012 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.16.2							    2012-10-11					       Locale::Codes::LangFam(3pm)
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