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UNIX Desktop Questions & Answers
Why can't I save a VI file after entering data?
Post 302393691 by xrwizgr on Tuesday 9th of February 2010 11:20:28 AM
02-09-2010
Hear is how we use it.
How do I use the vi text editor?
The vi text editor has three modes: command mode, input mode, and ex mode.
Command mode
When starting, vi begins in command mode. If you are ever unsure which mode you're in, press Esc to return to command mode. In command mode, you can move around with the arrow keys, or by using the vi movement keys, as follows:
h left j down k upl right
Several vi commands are listed in the table below:
CommandAction Ctrl-bGo back one page Ctrl-fGo forward one page xDelete the character the cursor is on Shift-xDelete the character before the cursor ddDelete the current line Shift-dDelete everything from the cursor to the end of the line uUndelete a line you just deleted Shift-uUndo all changes to the current line Shift-z-zSave your file and exit the vi editor
Note: In command mode, you can type a number before pressing a command key to repeat the command multiple times. For example, to delete eight lines from the cursor position, you could press 8 and then type dd .
Input mode
The input mode lets you insert or append text. To insert text before the cursor's current position, in command mode, press i . Similarly, to append after the cursor, you can type a . Remember that you can't move around with the cursor keys in this mode. When you're done entering text, press Esc to go back to command mode.
Ex mode
The ex mode is an extension of command mode. To get into it, press Esc and then : (the colon). The cursor will go to the bottom of the screen at a colon prompt. Write your file by entering :w and quit by entering :q . You can combine these to save and exit by entering :wq . However, if you're finished with your file, it's generally more convenient to type Shift-z-z from command mode.
For a more thorough list of vi command keys, see A quick reference list of vi editor commands.
Hope this works.
Thanks
Hannan Saleemi.
The vi text editor has three modes: command mode, input mode, and ex mode.
Command mode
When starting, vi begins in command mode. If you are ever unsure which mode you're in, press Esc to return to command mode. In command mode, you can move around with the arrow keys, or by using the vi movement keys, as follows:
h left j down k upl right
Several vi commands are listed in the table below:
CommandAction Ctrl-bGo back one page Ctrl-fGo forward one page xDelete the character the cursor is on Shift-xDelete the character before the cursor ddDelete the current line Shift-dDelete everything from the cursor to the end of the line uUndelete a line you just deleted Shift-uUndo all changes to the current line Shift-z-zSave your file and exit the vi editor
Note: In command mode, you can type a number before pressing a command key to repeat the command multiple times. For example, to delete eight lines from the cursor position, you could press 8 and then type dd .
Input mode
The input mode lets you insert or append text. To insert text before the cursor's current position, in command mode, press i . Similarly, to append after the cursor, you can type a . Remember that you can't move around with the cursor keys in this mode. When you're done entering text, press Esc to go back to command mode.
Ex mode
The ex mode is an extension of command mode. To get into it, press Esc and then : (the colon). The cursor will go to the bottom of the screen at a colon prompt. Write your file by entering :w and quit by entering :q . You can combine these to save and exit by entering :wq . However, if you're finished with your file, it's generally more convenient to type Shift-z-z from command mode.
For a more thorough list of vi command keys, see A quick reference list of vi editor commands.
Hope this works.
Thanks
Hannan Saleemi.
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LEARN ABOUT DEBIAN
ckey
CKEY(7) Miscellaneous Information Manual CKEY(7) NAME
ckey - The standard definition of each function key in cWnn system. DESCRIPTION
---------------------------------------------------------- | Function | Other | Description | Function | Function | | Keys | Keys | | In Input | In Input | | | | | State | State | | (a) | (b) | (c) | (d) | (e) | |----------+-------+---------------+------------+----------| | - | ^ |To toggle input| Similar to | Similar | | | | mode ON/OFF | (c) | to (c) | |----------+-------+---------------+------------+----------| | PF1 | - | To toggle | To Toggle | Similar | | | | phonetic input| among input| to (d) | | | | mode | methods | | |----------+-------+---------------+------------+----------| | PF2 | - | To toggle | To toggle | Similar | | | | encoded input | among input| to (d) | | | | mode | methods | | |----------+-------+---------------+------------+----------| | PF3 | - | To toggle | To toggle | Similar | | | | ASCII | among | to (d) | | | | character | different | | | | | input mode | ASCII | | | | | | character | | | | | | input | | | | | | methods | | |----------+-------+---------------+------------+----------| | PF4 | - | Toggle other | To toggle | Similar | | | | input mode | among | to (d) | | | |(only in Pinyin| different | | | | | centred input | input | | | | | environment) | methods | | | | | + | + | | | | | Toggle the | Similar to | | | | | environment | (c) | | | | | operation | | | | | | functions | | | | | |(same as PF6) | | | | | |(only in Zhuyin| | | | | | centred input | | | | | | environment & | | | | | |Combined Pinyin| | | | | | & Zhuyin input| | | | | | environment | | | |----------+-------+---------------+------------+----------| | PF5 | - | To select the | Similar to | Similar | | | | different | (c) | to (c) | | | | input keys | | | | | | allocations | | | |----------+-------+---------------+------------+----------| | PF6 | - | To toggle the | To select | Similar | | | | environment | among the | to (d) | | | | operations | different | | | | | | environment| | | | | | operation | | | | | | functions | | |----------+-------+---------------+------------+----------| | - | ^G | To quit the | Similar to | Similar | | | | environment | (c) | to (c) | | | | operation | | | | | | functions | | | |----------+-------+---------------+------------+----------| |Conversion| ^W | To perform | Similar to | Similar | | key | | Hanzi | (c) | to (d) | | | | conversion | + | | | | | | To list out| | | | | | possible | | | | | | candidates | | |----------+-------+---------------+------------+----------| |Conversion| - | To extract a | - | Similar | | key | | candidate from| | to (c) | | | | the candidate | | | | | | list | | | |----------+-------+---------------+------------+----------| | - | ^Z | To treat the | Similar to | Similar | | | | input string | (c) | to (d) | | | | as a phrase & | + | | | | | perform phrase| To list out| | | | | conversion | possible | | | | | | phrase | | | | | | candidates | | |----------+-------+---------------+------------+----------| | Confirm | ^L | To confirm the| Similar to | Similar | | key | | conversion | (c) | to (d) | | | | result | | | |----------+-------+---------------+------------+----------| | Confirm | - | To extract a | - | Similar | | key | | candidate | | to (c) | | | | from the | | | | | | candidate list| | | |----------+-------+---------------+------------+----------| | Right | ^F | To move cursor| To move the| Similar | | arrow | | one position | cursor one | to (d) | | key | | to the right | unit to the| + | | | | during input | right | To move | | | | state, edit | | to the | | | | state, & when | | next | | | | using PF6 | | candidate| | | | functions | | on the | | | | | | right | |----------+-------+---------------+------------+----------| | Left | ^B | To move cursor| To move the| Similar | | arrow | | one position | cursor one | to (d) | | key | | to the left | unit to the| + | | | | during input | left | To move | | | | state, edit | | to the | | | | state, & when | | next | | | | using PF6 | | candidate| | | | functions | | on the | | | | | | left | |----------+-------+---------------+------------+----------| | Up | ^P | To move to the| Similar to | Similar | | arrow | | previous menu | (c) | to (c) | | key | | or previous | + | + | | | | set of | To recall | To obtain| | | | candidates. | the | the | | | | Also apply | previous | previous | | | | when using | input | single | | | | functions in | | candidate| | | | PF6 | | | |----------+-------+---------------+------------+----------| | Down | ^N | To move to the| Similar to | Similar | | arrow | | next menu or | (c) | to (c) | | key | | the next set | + | + | | | | of candidates.| To recall | To obtain| | | | Also apply | the | the | | | | when using | next input | next | | | | functions in | | single | | | | PF6 | | candidate| |----------+-------+---------------+------------+----------| | - | ^D | To delete an | Similar to | Similar | | | | input unit | (c) | to (d) | | | | + | | | | | | Delete a word | | | | | | or character, | | | | | | or dictionary | | | | | | in the | | | | | | environment | | | | | | operations PF6| | | |----------+-------+---------------+------------+----------| | Backspace| - | To delete an | Similar to | Similar | | key | | input | (c) | to (c) | | | | character | | | |----------+-------+---------------+------------+----------| | - | ^E | Move cursor to| Move cursor| Move the | | | | the last input| to the last| cursor to| | | | unit (end) or | unit of the| the last | | | | to the last | user input | candidate| | | | candidate of | string | in the | | | | the list. | | current | | | | Also apply | | set of | | | | when using | | candidate| | | | functions in | | | | | | PF6 | | | |----------+-------+---------------+------------+----------| | - | ^A | Move cursor to| Move cursor| Move the | | | | the first | to the | cursor to| | | | unit | first unit | the last | | | | (beginning) or| of the user| candidate| | | | to the first | input | in the | | | | candidate of | string | current | | | | of the list | | set of | | | | Also apply | | candidate| | | | when using | | | | | | functions in | | | | | | PF6 | | | |----------+-------+---------------+------------+----------| | - | ^K | To undo a | To delete | Similar | | | | conversion | an input | to (d) | | | | from the | string from| + | | | | cursor | the cursor | Similar | | | | position to | position to| to (c) | | | | the end of the| the end of | If press | | | | input string | the input | twice, | | | |(if press once)| string | will | | | | |(press once)| cancel | | | | | | the whole| | | | | | converted| | | | | | Hanzi | | | | | | string | |----------+-------+---------------+------------+----------| | - | ^I | To shorten the| - | Separate | | | | length of a | | a word | | | | word phrase by| | into | | | | one character | |individual| | | | | |characters| |----------+-------+---------------+------------+----------| | - | ^O | To extend the | - | Join the | | | | length of a | |characters| | | | word phrase by| | into one | | | | one character | | word | |----------+-------+---------------+------------+----------| | - | ^G | To extract a | - | Similar | | | | candidate from| | to (c) | | | | the candidate | | | | | | list | | | |----------+-------+---------------+------------+----------| | - | ^C | To perform | - | Re-enter | | | | reverse | | into the | | | | conversion | | input or | | | | | | insert | | | | | | mode | | | | | | (if press| | | | | | once ) | | | | | | + | | | | | | Perform | | | | | | reverse | | | | | |conversion| | | | | | (if press| | | | | | twice ) | ---------------------------------------------------------- 13 May 1992 CKEY(7)