C-Shell meta characters

    space               command argument separator
    tab                 command argument separator
    RETURN              command argument terminator
    $                   variable identifier
    * [ ] ? { } ~ -     file expansion
    < > & !             redirection
    ! ^                 history
    |                   pipe
    ;                   command delimiter
    ( )                 command group
    \ ' "               quoting
    `                   command substitution
    &                   background execution