Shebang Post: 302236725

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Top Forums Shell Programming and Scripting Shebang Post 302236725 by radoulov on Tuesday 16th of September 2008 07:57:38 AM

09-16-2008

Registered User

Consider also the following:

Code:

man bash|less -p'name sh'

Quote:

If bash is invoked with the name sh, it tries to mimic the startup behavior of historical versions of
sh as closely as possible, while conforming to the POSIX standard as well. When invoked as an inter‐
active login shell, or a non-interactive shell with the --login option, it first attempts to read and
execute commands from /etc/profile and ~/.profile, in that order. The --noprofile option may be used
to inhibit this behavior. When invoked as an interactive shell with the name sh, bash looks for the
variable ENV, expands its value if it is defined, and uses the expanded value as the name of a file
to read and execute. Since a shell invoked as sh does not attempt to read and execute commands from
any other startup files, the --rcfile option has no effect. A non-interactive shell invoked with the
name sh does not attempt to read any other startup files. When invoked as sh, bash enters posix mode
after the startup files are read

Last edited by radoulov; 09-16-2008 at 02:30 PM..

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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)