xref: /freebsd/share/doc/usd/04.csh/csh.a (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c)
-
Copyright (c) 1980, 1993
The Regents of the University of California. All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.

@(#)csh.a 8.1 (Berkeley) 6/8/93
$FreeBSD$

Appendix - Special characters

The following table lists the special characters of csh and the \s-2UNIX\s0 system, giving for each the section(s) in which it is discussed. A number of these characters also have special meaning in expressions. See the csh manual section for a complete list.

Syntactic metacharacters ; 2.4 separates commands to be executed sequentially | 1.5 separates commands in a pipeline ( ) 2.2,3.6 brackets expressions and variable values & 2.5 follows commands to be executed without waiting for completion

Filename metacharacters / 1.6 separates components of a file's pathname . 1.6 separates root parts of a file name from extensions ? 1.6 expansion character matching any single character * 1.6 expansion character matching any sequence of characters [ ] 1.6 expansion sequence matching any single character from a set ~ 1.6 used at the beginning of a filename to indicate home directories { } 4.2 used to specify groups of arguments with common parts

Quotation metacharacters \e 1.7 prevents meta-meaning of following single character \' 1.7 prevents meta-meaning of a group of characters " 4.3 like \', but allows variable and command expansion

Input/output metacharacters < 1.5 indicates redirected input > 1.3 indicates redirected output

Expansion/substitution metacharacters $ 3.4 indicates variable substitution ! 2.3 indicates history substitution : 3.6 precedes substitution modifiers ^ 2.3 used in special forms of history substitution \` 4.3 indicates command substitution

Other metacharacters # 1.3,3.6 begins scratch file names; indicates shell comments - 1.2 prefixes option (flag) arguments to commands % 2.6 prefixes job name specifications .bp