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Full Discussion: Error in shell script when #!/bin/bash is used as shebang
Top Forums Shell Programming and Scripting Error in shell script when #!/bin/bash is used as shebang Post 302372609 by proactiveaditya on Wednesday 18th of November 2009 10:38:39 AM
Old 11-18-2009
Error in shell script when #!/bin/bash is used as shebang
Code:
#!/bin/ksh

echo -en "\033[1;32mEnter ACTIVATION KEY:\033[0m"
read ACTIVATION_KEY
case "$ACTIVATION_KEY" in +([a-z]|[A-Z]|[0-9]|'-'))
echo -e "\033[1;32mPatern Matched\033[0m"
;;
*)
echo -e "\033[1;32mYou seem to have entered wrong characters in both the earlier instances. Pattern matching failed\033[0m"
;;
esac

The above script works fine when the interpreter is ksh, but outputs the following error when #!/bin/bash is used as shebang:

Code:
test.sh: line 5: syntax error near unexpected token `('
test.sh: line 5: `case "$ACTIVATION_KEY" in +([a-z]|[A-Z]|[0-9]|'-'))'

 

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LEARN ABOUT SUNOS

print

print(1)							   User Commands							  print(1)

NAME

       print - shell built-in function to output characters to the screen or window

SYNOPSIS

   ksh
       print [ -Rnprsu [n]] [arg...]

DESCRIPTION

   ksh
       The shell output mechanism. With no flags or with flag - or -, the arguments are printed on standard output as described by echo(1).

OPTIONS

       The following options are supported:

       -n	       suppresses new-line from being added to the output.

       -R

       -r	       (raw  mode) ignore the escape conventions of echo. The -R option will print all subsequent arguments and options other than
		       -n.

       -p	       causes the arguments to be written onto the pipe of the process spawned with |& instead of standard output.

       -s	       causes the arguments to be written onto the history file instead of standard output.

       -u [ n ]        flag can be used to specify a one digit file descriptor unit number n on which the output will be placed. The default is 1.

EXIT STATUS

       The following exit values are returned:

       0	Successful operation.

       >0	Output file is not open for writing.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       echo(1), ksh(1), attributes(5)

SunOS 5.10							    15 Apr 1994 							  print(1)
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