| | IndexNumbers and Symbols
- .
- See dot (.)
- /
- See forward slash (/)
- -, command option designator
, 
>
- >, redirect symbol
, 
Numbers and Symbols
- !
- See exclamation point (!)
- #
- See pound sign (#)
- $
- See dollar sign ($)
- %
- See percent sign (%)
- &
- See ampersand (&)
- *
- See asterisk (*)
- :
- See colon (:)
- ;
- See semicolon (;)
- ?
- See question mark (?)
- @
- See at sign (@)
- \
- See backslash (\)
- ^
- See carat (^)
- ~
- See tilde (~ )
- -9 option (pkill command)
, 
- .., parent directory
, , , 
- +, mailx folder designator
, 
- |, pipe symbol
, 
- \, vi search command
, 
A
- a command (vi)
, 
- A command (vi)
, 
- -a option
- lpstat command
,  - ls command
, 
- aborting
- See canceling
- absolute permissions
, , 
- accelerators
- See keyboard equivalents
- access control mechanisms
, , 
- accounts, defined
, 
- Again operation, keyboard equivalent
, 
- aging of passwords
, 
- alias environment variable
, 
- aliases
, 
- aliases (mail)
, ,  - .mailrc file compared to /etc/aliases file
,  - defined
,  - private
,  - public
,  - sending messages to
- .mailrc aliases
, ,  - /etc/aliases aliases
, , 
- setting up
- in /etc/aliases file
, ,  - in .mailrc file
, , 
- aliases file
- See /etc/aliases file
- ampersand (&)
- background symbol
,  - escaping
,  - mailx prompt
,  - metacharacter
,  - searching for
, 
- appending text (vi)
, 
- apropos command
, 
- arrow keys, moving with (vi)
, 
- asterisk (*)
- grep command operator
, , ,  - mailx saved-message designator
,  - metacharacter
,  - searching for
,  - wildcard character
- changing permissions with
, ,  - copying files with
,  - deleting files with
,  - grep command
, ,  - vi search command
, 
- at sign (@)
- in email addresses
,  - in passwords
, 
- -auth option (Xsun command)
, , 
- authorization protocols
, ,  - MIT-MAGIC-COOKIE-1 authorization protocol
, , , , ,  - SUN-DES-1 authorization protocol
, , , , 
- autowrap, command entry and
, 
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