08-07-2009
On any POSIX compliant unix such as HP-UX "sh" will start the POSIX shell (not the old Bourne shell as it used to). Unless you will be working on old systems there is little use for Bourne shell nowadays though it is good background knowledge to know when you are using a shell extension relative to Bourne shell.
Personally I find Korn shell "ksh" to be the most portable in unix and "bash" the most portable in Linux. The least useful is C shell "csh".
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LEARN ABOUT OPENSOLARIS
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 5.11 15 Apr 1994 suspend(1)