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Full Discussion: need help with ksh script errors
Top Forums Shell Programming and Scripting need help with ksh script errors Post 302600433 by Scrutinizer on Tuesday 21st of February 2012 05:56:41 AM
Old 02-21-2012
Using let:
Code:
#!/bin/ksh
number=${1:-20}
for (( i=1; i<=$number; i++ )); do
  if   ! let "i % 3 || i % 5 "; then 
    echo "$i FizzBuzz"
  elif ! let "i % 3"; then
    echo "$i Fizz"  
  elif ! let "i % 5"; then
    echo "$i Buzz"  
  fi  
done

or the (( )) version:
Code:
#!/bin/ksh
number=${1:-20}
for (( i=1;i<=$number;i++ )); do
  if   ! (( i % 3 || i % 5 )); then 
    echo "$i FizzBuzz"
  elif ! (( i % 3 )); then
    echo "$i Fizz"  
  elif ! (( i % 5 )); then
    echo "$i Buzz"  
  fi  
done


Posix:

Code:
number=${1:-20}
i=1
while [ $i -le $number ]; do
  if   [ $(( i % 3 )) -eq 0 ] && [ $(( i % 5 )) -eq 0 ]; then
    echo "$i FizzBuzz"
  elif [ $(( i % 3 )) -eq 0 ]; then
    echo "$i Fizz"  
  elif [ $(( i % 5 )) -eq 0 ]; then
    echo "$i Buzz"  
  fi  
  i=$((i+1))
done

Last edited by Scrutinizer; 02-21-2012 at 07:08 AM..
 

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LEARN ABOUT SUNOS

getusershell

getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME

       getusershell, setusershell, endusershell - get legal user shells

SYNOPSIS

       #include <unistd.h>

       char *getusershell(void);

       void setusershell(void);

       void endusershell(void);

DESCRIPTION

       The  getusershell()  function  returns  a  pointer  to  a  legal  user  shell  as defined by the system manager in the file /etc/shells. If
       /etc/shells does not exist, the following locations of the standard system shells are used in its place:

       /bin/bash		  /bin/csh
       /bin/jsh 		  /bin/ksh
       /bin/pfcsh		  /bin/pfksh
       /bin/pfsh		  /bin/sh
       /bin/tcsh		  /bin/zsh
       /sbin/jsh		  /sbin/pfsh
       /sbin/sh 		  /usr/bin/bash
       /usr/bin/csh		  /usr/bin/jsh
       /usr/bin/ksh		  /usr/bin/pfcsh
       /usr/bin/pfksh		  /usr/bin/pfsh
       /usr/bin/sh		  /usr/bin/tcsh
       /usr/bin/zsh		  /usr/xpg4/bin/sh

       The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells.

       The setusershell() function rewinds the file or the list.

       The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells.

RETURN VALUES

       The getusershell() function returns a null pointer on EOF.

BUGS

       All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved.

SunOS 5.10							    30 Aug 2004 						  getusershell(3C)
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