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Full Discussion: problem in fibonacci series
Top Forums Shell Programming and Scripting problem in fibonacci series Post 302284481 by cfajohnson on Thursday 5th of February 2009 03:28:36 PM
Old 02-05-2009

Code:
fibo()
{
  num=${1:-100}
  n2=1
  n1=0
  while n=$(( $n1 + $n2 )); [ $n -le $num ]
  do
    printf "%d " "$n"
    n1=$n2
    n2=$n
  done
  echo
}

## The loop continues until the user enters a valid number
while :
do
  printf "Enter a number: "
  read number
  case $number in
    *[!0-9]* | "") printf "\a*** Invalid number ***\n" >&2 ;;
    *) break ;;
  esac
done
fibo "$number"

 

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MESSAGES(3)						  libbash messages Library Manual					       MESSAGES(3)

NAME
messages -- libbash library that implements a set of functions to print standard status messages SYNOPSIS
printOK [indent] printFAIL [indent] printNA [indent] printATTN [indent] printWAIT [indent] DESCRIPTION
General messages is a collection of functions to print standard status messages - those [ OK ] and [FAIL] messages you see during Linux boot process. The function list: printOK Prints a standard [ OK ] message (green) printFAIL Prints a standard [FAIL] message (red) printNA Prints a standard [ N/A] message (yellow) printATTN Prints a standard [ATTN] message (yellow) printWAIT Prints a standard [WAIT] message (yellow) Detailed interface description follows. indent Column to move to before printing. Default indent is calculated as TTY_WIDTH-10. If current tty width can not be determined (for example, in case of serial console), it defaults to 80, so default indent is 80-10=10 FUNCTIONS DESCRIPTIONS
printOK [indent] Prints a standard [ OK ] message (green) printFAIL [indent] Prints a standard [FAIL] message (red) printNA [indent] Prints a standard [ N/A] message (yellow) printATTN [indent] Prints a standard [ATTN] message (yellow) printWAIT [indent] Prints a standard [WAIT] message (yellow) EXAMPLES
Run a program named MyProg, and report it's success or failure: echo -n 'Running MyProg...' printWAIT if MyProg ; then printOK else printFAIL fi AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <gil@ran4.net> SEE ALSO
ldbash(1), libbash(1) Linux Epoch Linux
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