Updated zsh packages that fix one bug and add one enhancement are now available for Red Hat Enterprise Linux 6.
The zsh shell is a command interpreter which can be used as an interactive login shell and as a shell script command processor. Zsh resembles the ksh shell (the Korn shell), but includes many enhancements. Zsh supports command line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more.
Prior to this update, the zsh shell attempted to execute mathematical expressions in the "-n" option when running in ksh mode. As a consequence, zsh emitted errors when running a syntax only check. This update modifies the source code so that mathematical expressions are now handled like any other command when using the "-n" option.
Prior to this update, a script whose location was listed in "$PATH" could not be run with the zsh shell. With this update, users can call a script from "$PATH" with the "-o pathscript" option to search path when zsh is invoked directly.
All users are advised to upgrade to these updated packages, which fix this bug and add this enhancement.