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Full Discussion: test script to identify SHELL
Top Forums Shell Programming and Scripting test script to identify SHELL Post 302347773 by talashil on Wednesday 26th of August 2009 11:17:53 AM
Old 08-26-2009
test script to identify SHELL
I am new to BASH and writing a small script to identify the SHELL .

Code:
#!/bin/bash
BASH='/bin/bash'
KSH='/bin/ksh'
if [$SHELL == "$BASH"]
then
echo "it's Bash"
else
echo "it's not Bash"
fi


Code:
$ bash -x a.sh
+ BASH=/bin/bash
+ KSH=/bin/ksh
+ '[/bin/bash' == '/bin/bash]'
a.sh: line 4: [/bin/bash: No such file or directory
+ echo 'it'\''s not Bash'
it's not Bash

where am I missing . PLease advice .

Thanks
 

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LEARN ABOUT SUNOS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The  following  default	shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh,
       /bin/tcsh,  /bin/zsh,  /sbin/jsh,  /sbin/sh,  /usr/bin/bash,  /usr/bin/csh,  /usr/bin/jsh,  /usr/bin/ksh,  /usr/bin/pfcsh,  /usr/bin/pfksh,
       /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list.

       Invalid shells in /etc/shells may cause unexpected behavior (such as being unable to log in by way of ftp(1)).

FILES

       /etc/shells	       lists shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.10							    4 Jun 2001								 shells(4)
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