Tornado

Tornado 2.0
User’s Guide
Scripts can also be nested. That is, scripts can contain shell input redirections that
cause the shell to process other scripts.
! CAUTION: Input and output redirection must refer to files on a host file system. If
you have a local file system on your target, files that reside there are available to
target-resident subroutines, but not to the shell or to other Tornado tools (unless
you export them from the target using NFS, and mount them on your host).
! CAUTION: You should set the WindSh environment variable SH_GET_TASK_IO to
off before you use redirection of input from scripts or before you copy and paste
blocks of commands to the shell command line. Otherwise commands might be
taken as input for a command that preceeds them, and lost.
C-Interpreter Startup Scripts
Tornado shell scripts can be especially useful for setting up your working
environment. You can run a startup script through the shell C interpreter 5 by
specifying its name with the -s command-line option to windsh. For example:
% windsh -s /usr/fred/startup
Like the .login or .profile files of the UNIX shells, startup scripts can be used for
setting system parameters to personal preferences: defining variables, specifying
the target’s working directory, and so forth. They can also be useful for tailoring
the configuration of your system without having to rebuild VxWorks. For example:
■
creating additional devices
■
loading and starting up application modules
■
adding a complete set of network host names and routes
■
setting NFS parameters and mounting NFS partitions
For additional information on initialization scripts, see 5.7 Tcl: Shell Interpretation,
p.198.
5. You can also use the -e option to run a Tcl expression at startup, or place Tcl initialization in
.wind/windsh.tcl under your home directory. See 5.7.3 Tcl: Tornado Shell lnitialization, p.201.
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