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Full Discussion: Difference in executing the script
Top Forums Shell Programming and Scripting Difference in executing the script Post 302935248 by Corona688 on Friday 13th of February 2015 05:13:40 PM
Old 02-13-2015
The first one reads the first line of the script, and uses it to decide which shell to use.

If it's #!/bin/ksh it will use KSH, if it's #!/usr/bin/csh it will use csh, if it's #!/bin/sh it will use any variety of bourne shell, etc, etc.

When you do ksh script you avoid that entirely, and force it to use a particular shell.
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LEARN ABOUT SUNOS

suspend

suspend(1)							   User Commands							suspend(1)

NAME

       suspend - shell built-in function to halt the current shell

SYNOPSIS

   sh
       suspend

   csh
       suspend

   ksh
       suspend

DESCRIPTION

   sh
       Stops the execution of the current shell (but not if it is the login shell).

   csh
       Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.

   ksh
       Stops the execution of the current shell (but not if it is the login shell).

ATTRIBUTES

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

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

SEE ALSO

       csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)

SunOS 5.10							    15 Apr 1994 							suspend(1)
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