For most users, the default prompt in the Korn shell is a dollar sign:
$
For root, the prompt is a hash symbol:
#
The prompt can be changed by setting the PS1 environment variable.
For example:
export PS1='$PWD ! $ '
export PS1='${PWD#${PWD%/*/*}/} ! $ '
export PS1="$LOGNAME@`uname -n` \$PWD ! $ "
$PWD shows the path for the current directory.
${PWD#${PWD%/*/*}/} uses Korn shell pattern
matching to show only the last two directories in the current directory path.
! shows the number of the command in the command history.
When setting the prompt with a double-quoted ("...") string,
unescaped variables, such as $LOGNAME above, and commands, such as
`uname -n` above, are interpreted when the environment variable is
exported, and therefore will not change unless the prompt is set again.
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