[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] & (ampersand)      ex  2nd      logical AND  < > (angle brackets) ex  * (asterisk)  2nd      multiplication operator  @ (at)     ex      tcsh  \ (backslash)  ! (bang)      ex      shell invocation, ftp  !~ (bang tilde), gawk  { } (braces), sed command  [ ] (brackets)  2nd  ^ (caret), gawk  : (colon)     ex editor      pattern search, expr      sed      :set command (ex)      tcsh null command  $ (dollar)      execute macro command, ftp      gawk      prompt      sed  . (dot)  ?? (double question marks)  " " (double quotes)  = (equals)     ex      sed  \( \) (escaped parentheses)  / (forward slash)     division operator      sed command  #! (hash bang)      tcsh shell  # (hash mark)  2nd      in shell scripts      sed      tcsh shell  - (hyphen) and metamail command  - (minus operator)  % (modulo operator)  : (null command)  ( ) (parentheses)  % (percent)      bash job ID argument      prompt  | (pipe)  2nd      as logical OR symbol  + (plus) operator      fvwm2  ? (question mark)  2nd      ftp help command)  > (redirection operator)  >> (redirection operator)  < (redirection operator)  << (redirection operator)  ; (semicolon)  ' ' (single quotes)  ~ (tilde)     bash      ex      gawk      sed      tcsh  ` (backquote)