| E
- e command (vi)
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- echo, passwords and
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- editing
- See changing
- editor
- See vi editor
- electronic mail
- See mail
- email
- See mail
- enabling Compose Key
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- "end" command (vi)
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- end of file
- copying to in ex
,  - marking in mailx
, , 
- end of line
- appending text to (vi)
,  - moving to (vi)
,  - searching for (vi)
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- end of word, moving to (vi)
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- ending
- See quitting
- entering commands
- See commands, typing
- entry mode (vi)
, , 
- env command
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- environment variables
, ,  - alias
,  - CDPATH
,  - defined
, , ,  - DISPLAY
, , ,  - displaying
,  - HISTORY
, ,  - HOME
,  - LANG
,  - LOGNAME
,  - LPDEST
,  - MAIL
,  - MANSECTS
,  - networked applications and
,  - noclobber
,  - PATH
, , ,  - PS1
, , ,  - SHELL
,  - TERM
,  - TERMINFO
,  - TZ
,  - umask
, ,  - user profile
, , 
- erasing
- See deleting
- error messages
- "Sorry"
,  - "Stranger: unknown host"
,  - "No write since last change"
,  - password
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- Esc key, vi command mode
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- escape character (\)
, , , , 
- escaping escape character
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- escaping to shell command (mailx)
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- /etc/aliases file
, ,  - .mailrc file compared to
,  - sending mail to
, ,  - setting up aliases in
, , 
- /etc/hosts.equiv file
, , , 
- /etc/passwd file
, , 
- /etc/profile file
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- ex commands
, , ,  - case sensitivity on/off (:set ic, :set noic)
,  - copying lines (:co)
, ,  - deleting lines (:d)
, ,  - described
, ,  - inserting files (:r)
, ,  - line numbering (:set nu, :set nonu)
, ,  - moving lines (:m)
,  - opening files (:n)
,  - quitting, saving (:wq) and not saving (:q, :q!)
, ,  - saving changes, quitting (:wq) and not quitting (:w)
, ,  - searching and replacing (:g)
, ,  - undoing (:u)
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- exclamation point (!)
- ~! command (mailx)
,  - command repetition operator
, ,  - escaping
,  - metacharacter
,  - not operator
,  - searching for
, 
- -exec option (find command)
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- executable files, defined
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- execute permission
- absolute
, , ,  - relative
, , , , 
- executing commands remotely
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- exit command (SunOS)
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- exiting
- See quitting
F
- ~f command (mailx)
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- -f option
- lpstat command
,  - mailx program
, 
- fc -l command
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- fc -s command, command repetition operator (Korn shell)
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- fg command, reactivating remote connection
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- file command
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- File Manager
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- file systems, managing disk storage for
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- files
, , , ,  - changing permissions
, , , ,  - comparing
, ,  - concatenating
,  - copying
, ,  - remotely
, 
- copying mail to
, ,  - copying remotely
,  - creating
- with touch command
,  - with vi
, 
- defined
, ,  - deleting
,  - permanent files
,  - temporary work files
, 
- display of contents
,  - display of permissions
, ,  - display of status
, ,  - displaying type
,  - dot
,  - editing
- See vi editor
- executable
,  - hidden, listing
,  - initialization
, ,  - inserting into mail
, ,  - inserting into other files
, ,  - large, comparing
,  - length of, displaying
,  - listing
, , ,  - listing hidden
,  - loading new, keyboard equivalent
,  - moving
,  - naming
- base name
,  - renaming
,  - uniqueness requirements
, 
- opening
- with ex
,  - keyboard equivalent
,  - with vi
, 
- overview
, ,  - overwrite prevention
,  - path names
, , , ,  - permissions
,  - absolute
, ,  - changing
, , , ,  - default setting
, ,  - defaults described
,  - described
,  - displaying
, , 
- printing
- See printing
- reading mail saved in
,  - renaming
,  - saving, keyboard equivalent
,  - saving mail in
, ,  - searching
- See searching, files and directories
- searching for
, ,  - sending mail directly to
,  - size of, displaying
,  - status, displaying
, ,  - temporary, deleting
,  - wildcard characters and
, , 
- filtering, grep command and
, , 
- find command
, , 
- Find operation, keyboard equivalent
, 
- finding
- See searching
- finger command
, 
- folders (mailx)
, ,  - listing
,  - previous folder
,  - reading mail saved in
, ,  - saving and copying mail to
, ,  - sending mail directly to
,  - switching to/from mailbox
,  - switching to/from mailbox to/from
, 
- foreign languages, environment variable for
, 
- forward slash (/)
- root directory
,  - vi search command
, 
- forwarding mail
, 
- function key remapping (IA based systems only)
, , 
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