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Full Discussion: How to find out the shell of the shell script?
Top Forums Shell Programming and Scripting How to find out the shell of the shell script? Post 302602639 by guruprasadpr on Tuesday 28th of February 2012 01:06:22 AM
Old 02-28-2012
How to find out the shell of the shell script?
Hello
My question is: How to find out the shell of the shell script which we are running? I am writing a script, say f1.sh, as below:

Code:
#!/bin/ksh

echo "Sample script"

From the first line, we can say this script will run in ksh. But, how can we prove it? Can we print anything inside the script to verify it? echo $SHELL wont help since it will show the login shell which in my case is bash. echo $0 also wont help since $0 in this case will be the name of the script. The ps command does not help. It will show the name of the script in the process list, not the shell as such.

Please advice.
Last edited by guruprasadpr; 02-28-2012 at 02:21 AM..
 

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LEARN ABOUT MOJAVE

platform::shell

platform::shell(n)					       Tcl Bundled Packages						platform::shell(n)

__________________________________________________________________________________________________________________________________________________

NAME

       platform::shell - System identification support code and utilities

SYNOPSIS

       package require platform::shell ?1.1.4?

       platform::shell::generic shell
       platform::shell::identify shell
       platform::shell::platform shell
_________________________________________________________________

DESCRIPTION

       The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.

       This  package  allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
       requirement is that the other shell (identified by its path), is actually executable on the current machine.

       While for most platform this means that the architecture of the interrogated shell is identical to the architecture of  the  running  shell
       this  is  not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
       32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.

       For applications like a code repository it is important to identify the architecture of the shell which will  actually  run  the  installed
       packages, versus the architecture of the shell running the repository software.

COMMANDS

       platform::shell::identify shell
	      This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::generic shell
	      This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.

       platform::shell::platform shell
	      This command returns the contents of tcl_platform(platform) for the specified Tcl shell.

KEYWORDS

       operating system, cpu architecture, platform, architecture

platform::shell 						       1.1.4							platform::shell(n)
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