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

Table 32. tcsh Built-in Shell Variables (continued)
Variable Purpose
nobeep If set, beeping is completely disabled.
noclobber If set, restrictions are placed on output redirection to
insure that files are not accidentally destroyed and that
>> redirections refer to existing files, as described in
“Input or output” on page 646.
noglob If set, filename substitution and directory stack
substitution are inhibited. This is most useful in shell
scripts which do not deal with filenames, or after a list of
filenames has been obtained and further expansions are
not desirable.
nokanji If set and the shell supports Kanji (see the version shell
variable), it is disabled so that the meta key can be used.
nonomatch If set, a filename substitution or directory stack
substitution which does not match any existing files is left
untouched instead of causing an error. It is still an error
for the substitution to be malformed, that is, echo [ still
gives an error.
nostat A list of directories (or glob-patterns which match
directories; see “Filename substitution” on page 643) that
should not be stat(2)ed during a completion operation.
This is usually used to exclude directories which take too
much time to stat(2), for example /afs.
notify If set, the shell announces job completions
asynchronously. The default is to present job completions
just before printing a prompt.
owd The old working directory, equivalent to the - (hyphen)
used by cd and pushd. See also the cwd and dirstack
shell variables.
path A list of directories in which to look for executable
commands. A null word specifies the current directory. If
there is no path variable then only full pathnames will
execute. path is set by the shell at startup from the PATH
environment variable or, if PATH does not exist, to a
system-dependent default something like (/usr/local/bin
/usr/bsd /bin /usr/bin .). The shell may put ’.’ first or last in
path or omit it entirely depending on how it was compiled;
see the version shell variable. A shell which is given
neither the -c nor the -t option hashes the contents of the
directories in path after reading ~/.tcshrc and each time
path is reset. If one adds a new command to a directory
in path while the shell is active, one may need to do a
rehash for the shell to find it.
printexit- value If set and an interactive program exits with a non-zero
status, the shell prints ’Exit status’.
prompt2 The string with which to prompt in while and foreach
loops and after lines ending in \ (backslash). The same
format sequences may be used as in prompt (note the
variable meaning of %R). Set by default to %R? in
interactive shells.
tcsh
Chapter 2. Shell command descriptions 661