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Full Discussion: previous element in the array perl
Top Forums Shell Programming and Scripting previous element in the array perl Post 302559094 by yazu on Monday 26th of September 2011 08:00:20 AM
Old 09-26-2011
Code:
perl -e '
@queue = (1, 2, 3, 4);
print for map { "$queue[$_], $queue[$_+1]\n" } 0...$#queue-1'
1, 2
2, 3
3, 4

But I think I didn't understand you.
 

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LEARN ABOUT DEBIAN

queue-repair

queue-repair(8) 					      System Manager's Manual						   queue-repair(8)

NAME

       queue-repair - deal with the qmail queue directory structure

SYNOPSIS

       queue-repair [ -htrcbn ] [ -n split ] [ conf-qmail ]

DESCRIPTION

       queue-repair  deals  with  the  qmail  queue structure; it can create a new queue, move and properly rename a queue, dynamically change the
       conf-split value, convert big-todo queues to non-big-todo and vice versa, and repair a corrupted queue.

       conf-qmail defaults to /var/lib/qmail/ on Debian.

OPTIONS

       -h|--help
	      Display usage information and built-in defaults, then exit.

       -t|--test
	      Run in test-only mode.  queue-repair will attempt to report all problems that it	finds,	without  correcting  them.   This  is  the
	      default.

       -r|--repair
	      Run  in repair mode.  queue-repair will attempt to correct all problems that it finds, except if the basic queue directories (queue,
	      queue/mess, queue/info, etc) are not found.

       -c|--create
	      Run in create-and-repair mode.  queue-repair will attempt to correct all problems that it finds, including creation of a	new  queue
	      structure from scratch.

       -s|--split split
	      Specify  split as the value of conf-split.  This is the number of split subdirectories for those queue directories which are hashed.
	      The default for qmail is 23.  Appropriate values depend on the volume of mail handled, OS filesystem efficiency, and other  factors,
	      but this should always be a prime number.

	      If you do not specify conf-split, queue-repair will attempt to determine the current value from the existing queue.  This option can
	      be used, however, to change the conf-split value of an existing queue (qmail will still have to be recompiled with the  new  value).
	      When creating a new queue, this option must always be specified.

       -b|--bigtoto
	      Use  big-todo.   queue-repair should be able to automatically determine if you're using qmail patched with the big-todo patch.  This
	      option can be used, however, to convert a non-big-todo queue to a big-todo queue (qmail will still have to be  recompiled  with  the
	      big-todo patch).

	      If  neither  this  option  nor --no-bigtodo is used, queue-repair will attempt to determine this automatically.  When creating a new
	      queue, either this option or --no-bigtodo must always be specified.

       -n|--no-bigtodo
	      Do not use big-todo.  queue-repair should be able to automatically determine if you're using qmail patched with the big-todo  patch.
	      This  option can be used, however, to convert a big-todo queue to a non big-todo queue (qmail will still have to be recompiled with-
	      out the big-todo patch).

	      If neither this option nor --bigtodo is used, queue-repair will attempt to determine this automatically.	When creating a new queue,
	      either this option or --bigtodo must always be specified.

       --i-want-a-broken-conf-split
	      Force the use of a non-prime value for conf-split.

SEE ALSO

       qmail(7)

																   queue-repair(8)
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