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

Table 32. tcsh Built-in Shell Variables (continued)
Variable Purpose
correct If set to cmd, commands are automatically
spelling-corrected. If set to complete, commands are
automatically completed. If set to all, the entire command
line is corrected.
cwd The full pathname of the current directory. See also the
dirstack and owd shell variables.
dextract If set, pushd +n extracts the nth directory from the
directory stack instead of rotating it to the top.
dirsfile The default location in which dirs -S and dirs -L look for
a history file. If unset, ~/.cshdirs is used. Because only
~/.tcshrc is normally sourced before ~/.cshdirs, dirsfile
should be set in ~/.tcshrc instead of ~/.login.
For example:
set dirsfile = ~/.cshdirs
dirstack An array of all the directories on the directory stack.
$dirstack[1] is the current working directory, $dirstack[2]
the first directory on the stack, etc. Note that the current
working directory is $dirstack[1] but =0 in directory stack
substitutions, etc. One can change the stack arbitrarily by
setting dirstack, but the first element (the current working
directory) is always correct. See also the cwd and owd
shell variables.
dunique If set, pushd removes any instances of name from the
stack before pushing it onto the stack.
tcsh
echo If set, each command with its arguments is echoed just
before it is executed. For non-built-in commands all
expansions occur before echoing. Built-in commands are
echoed before command and filename substitution, since
these substitutions are then done selectively. Set by the
-x command line option.
Chapter 2. Shell command descriptions 657