Bash Help

Shell Programming and Scripting
1

I have ksh script and converting to bash . This portion is failing .

code in ksh:

read choice
        until [[ $tries -gt 2 || $choice = +([0-9]) && $choice -gt 0 \
                && choice -le "${#rdbms[*]}" ]]; do
                print -n "Invalid choice - must enter number between 1"
                print -n " and ${#rdbms[*]}: "
                read choice
                let tries=tries+1
        done

and when I run this under bash shell , it's giving the error as :

line 235: syntax error in conditional expression: unexpected token `('
line 235: syntax error near `+(['
line 235: `        until [[ $tries -gt 2 || $choice = +([0-9]) && $choice -gt 0 \'

any help with this ...

Thanks

2

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3

remove "(" and ")" in "+([0-9])"
also you might want to replace print command by echo

4

Hi.
I suggest experimenting with bash builtin shopt:

       If the extglob shell option is enabled using the shopt builtin, several
       extended pattern matching operators are recognized.  In  the  following
       description, a pattern-list is a list of one or more patterns separated
       by a |.  Composite patterns may be formed using one or more of the fol-
       lowing sub-patterns:

              ?(pattern-list)
                     Matches zero or one occurrence of the given patterns
              *(pattern-list)
                     Matches zero or more occurrences of the given patterns
              +(pattern-list)
                     Matches one or more occurrences of the given patterns

-- excerpt from man bash

cheers, drl

5

Thankyou Guys.