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# 8  
Old 05-16-2007
The 'set -A' command is used to initialize an array : ksh specific
For bash try :
Code:
      declare -a words -- ${all_words}

For bourne shell : Arrays not supported

Jean-Pierre.
# 9  
Old 05-16-2007
Quote:
Originally Posted by aigles
The 'set -A' command is used to initialize an array : ksh specific
For bash try :
Code:
      declare -a words -- ${all_words}

For bourne shell : Arrays not supported

Jean-Pierre.
hang: line 36: declare: `--': not a valid identifier
hang: line 38: 27142 % 0 : division by 0 (error token is " ")

now it gives this error.. i think it might be the way i have set up the word file?

K
# 10  
Old 05-16-2007
Try:
Code:
declare -a words ${all_words}


Jean-Pierre.
# 11  
Old 05-16-2007
Quote:
Originally Posted by aigles
Try:
Code:
declare -a words ${all_words}


Jean-Pierre.
hang: line 38: 14663 % 0 : division by 0 (error token is " ")

now its getting silly Smilie

K
# 12  
Old 05-16-2007
Good practice in shell scripts is to declare the shell you want to use on line 1, with a she-bang #!
Code:
#!/bin/ksh      # korn shell
#!/bin/sh        # POSIX shell (can be any of several POSIX-compliant shells, includes bash )
#!/bin/bash     # bash

echo $SHELL
will tell you what your current shell is.
# 13  
Old 05-16-2007
Quote:
Originally Posted by jim mcnamara
Good practice in shell scripts is to declare the shell you want to use on line 1, with a she-bang #!
Code:
#!/bin/ksh      # korn shell
#!/bin/sh        # POSIX shell (can be any of several POSIX-compliant shells, includes bash )
#!/bin/bash     # bash

echo $SHELL
will tell you what your current shell is.
oh how silly of me... that would have been usefull... sorry guys i should have mentioned it its bin/bash.. the error is still the same.

hang: line 38: 14663 % 0 : division by 0 (error token is " ")


K
Last edited by keyvan; 05-16-2007 at 11:38 AM.. Reason: more information
# 14  
Old 05-16-2007
bash is not very familiar to me, seems that arrays aren't managed in the same way than within ksh.
  • Add 'set -x' for debuging purpose
  • Change 'declare' statement and add array assigment
  • Read again the bash man pages Smilie

Code:
random_word() 
{
   set -x
   if [ -z "$all_words" ]
   then
      sed '1s/,/ /g' random_words_file | read all_words 
      declare -a words
      words=( ${all_words} )
   fi  
   word_index=$(( $RANDOM % ${#words[@]} ))
   echo ${words[$word_index]}
}

word=$(random_word)

Jean-Pierre.
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