z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

tcsh
–n Parses commands but does not execute them. This aids in debugging shell
scripts.
–q Accepts SIGQUIT and behaves when it is used under a debugger. Job
control is disabled.
–s Take command input from the standard input.
–t Reads and executes a single line of input. A \ (backslash) may be used to
escape the newline at the end of this line and continue onto another line.
–v Sets the verbose shell variable so command input is echoed after history
substitution.
–x Sets the echo shell variable so commands are echoed immediately before
execution.
–V Sets the verbose shell variable even before executing ~/.tcshrc.
–X Is to –x as –V is to –v.
After processing of option arguments, if arguments remain but none of the –c, –i,
–s, or –t were given, the first argument is taken as the name of a file of commands,
or script, to be executed. The shell opens this file and saves its name for possible
resubstitution by $0. Since many systems use shells whose shell scripts are not
compatible with this shell, the tcsh shell uses such a standard shell to execute a
script whose character is not a #, that is, which does not start with a comment.
Remaining arguments are placed in the argv shell variable.
tcsh shell editing
In this topic, we first describe the Command-Line Editor. We then discuss
Completion and Listing and Spelling Correction which describe two sets of
functionality that are implemented as editor commands but which deserve their own
treatment. Finally, the Editor Commands topic lists and describes the editor
commands specific to the tcsh shell and their default bindings.
tcsh shell command-line editor
Command-line input can be edited using key sequences much like those used in
GNU Emacs or vi. The editor is active only when the edit shell variable is set, which
it is by default in interactive shells. The bindkey built-in command can display and
change key bindings. Emacs-style key bindings are used by default, but bindkey
can change the key bindings to vi-style bindings.
The shell always binds the arrow keys to:
down down-history
up up-history
left backward-char
right forward-char
unless doing so would alter another single-character binding. One can set the arrow
key escape sequences to the empty string with settc to prevent these bindings.
Other key bindings are, for the most part, what Emacs and vi users would expect
and can easily be displayed by bindkey, so there is no need to list them here.
Likewise, bindkey can list the editor commands with a short description of each.
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