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Full Discussion: README: Factorial quick chart with sed & bc:
Top Forums Shell Programming and Scripting README: Factorial quick chart with sed & bc: Post 302766973 by Jotne on Wednesday 6th of February 2013 02:40:24 AM
Old 02-06-2013
Nice example.
Buts its some more easy to read when using $(code) instead of `code`
Code:
n=20;for i in $(seq $n);do printf "$(seq $i|xargs|sed 's/ /*/g')= ";echo "$(seq $i|xargs|sed 's/ /*/g')"| bc;done

bc also needed to be installed manually on Ubuntu
This User Gave Thanks to Jotne For This Post:
rveri
 

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LEARN ABOUT CENTOS

qb-blackbox

QB-BLACKBOX(8)						      System Manager's Manual						    QB-BLACKBOX(8)

NAME

       qb-blackbox - Display "flight data" from the "blackbox".

SYNOPSIS

       qb-blackbox <blackbox files>...

DESCRIPTION

       qb-blackbox Print out the logs (including debug logs) that were recorded using libqb's blackbox.

EXAMPLES

       Get info to help developers diagnose a crash.
	      $ qb-blackbox /var/lib/corosync/fdata
	      Dumping the contents of /var/lib/corosync/fdata
	      Mar 23 20:58:57 message_handler_orf_token():3677 install seq 0 aru 0 high seq received 0
	      Mar 23 20:58:57 message_handler_orf_token():3696 retrans flag count 4 token aru 0 install seq 0 aru 0 0
	      Mar 23 20:58:57 old_ring_state_reset():1487 Resetting old ring state
	      Mar 23 20:58:57 deliver_messages_from_recovery_to_regular():1693 recovery to regular 1-0
	      Mar 23 20:58:57 memb_state_operational_enter():1779 Delivering to app 1 to 0
	      Mar 23 20:58:57 sync_abort():594 ENTERING sync_abort()
	      Mar 23 20:58:57 sync_save_transitional():586 ENTERING sync_save_transitional()
	      Mar 23 20:58:57 member_object_joined():301 Member joined: r(0) ip(192.168.122.1)
	      Mar 23 20:58:57 sync_abort():594 ENTERING sync_abort()

SEE ALSO

       qblog.h(3),

AUTHOR

       Angus Salkeld

								    2012-05-28							    QB-BLACKBOX(8)
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