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

tcsh
Commands within loops are not placed in the history list. Control structures should
be parsed instead of being recognized as built-in commands. This would allow
control commands to be placed anywhere, to be combined with |, and to be used
with & and ; (semi-colon) metasyntax.
foreach does not ignore here documents when looking for its end.
It should be possible to use the : (colon) modifiers on the output of command
substitutions.
The screen update for lines longer than the screen width is very poor if the terminal
cannot move the cursor up (terminal type ’dumb’).
It is not necessary for HPATH and NOREBIND to be environment variables.
Glob-patterns which do not use ’?’, ’*’ or ’[]’ or which use ’{}’ or ’~’ are not negated
correctly.
The single-command form of if does output redirection even if the expression is
false and the command is not executed.
ls-F includes file identification characters when sorting filenames and does not
handle control characters in filenames well. It cannot be interrupted.
visiblebell shell variable is currently not implemented.
In filename and programmed completion, the ’C’ completion ru le word list type
does not correctly select completion from the given directory.
There are three locales (code pages) which the tcsh shell will not correctly support:
IBM-1388 (Chinese), IBM-933 (Korean) and IBM-937 (Traditional Chinese).
If you want to help maintain and test tcsh, send mail to listserv@mx.gw.com with
the text 'subscribe tcsh '.
Limits
Some limitations of the tcsh shell are:
v Words can be no longer than 1024 characters.
v The system limits argument lists to 10240 characters.
v The number of arguments to a command which involves filename expansion is
limited to 1/6th the number of characters allowed in an argument list.
v Command substitutions may substitute no more characters than are allowed in
an argument list.
v To detect looping, the shell restricts the number of alias substitutions on a single
line to 20.
Related information
: (colon), @ (at), alias, bg, break, cd, continue, echo, eval, exec, exit, fg,
history, jobs, kill, newgrp, nice, nohup, printenv, set, shift, stop, suspend,
time, umask, unalias, unset, wait
672 z/OS V1R9.0 UNIX System Services Command Reference