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Full Discussion: Syntax error: `]' unexpected
Top Forums Shell Programming and Scripting Syntax error: `]' unexpected Post 303037891 by jim mcnamara on Thursday 15th of August 2019 11:14:11 PM
Old 08-16-2019
I am missing something.
By default bash sources a file .bashrc if one exists in the current working for each "new" bash invocation. The same is true for ~.kshrc. Each "new" invocation of ksh sources the .kshrc file in the current working directory if it exists.

Per the man pages for each shell.

An example new: executing a script that has a shebang: #!/bin/bash, same for ksh
So why write a script which does exactly what default behavior of your shell already does for you? Good shell coding practice is to place a shebang on the first line, so it is clear what envoronment the shell requires. If bash is not in the PATH then #!/bin/bash will fail which is what you want.
 

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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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