What does nano mean in linux?

In Linux, nano is a character terminal text editor, a copy of Pico; it is much simpler than vi/vim, and is more suitable for Linux beginners. The default editor for some Linux distributions is nano. The nano command can open the specified file for editing. By default, it will automatically break lines, that is, when inputting too long content in one line, it will automatically split it into several lines.

Introduction to nano

nano is a text editor in Unix and Unix-like systems (including Linux) and is a copy of Pico.

Pico is a text editing program written and maintained by the Computing and Communications Group at the University of Washington.

Similar to the editor program under DOS, nano is a text editor based on character terminals. It is much simpler than vi/vim and is more suitable for Linux beginners. The default editor for some Linux distributions is nano.

The nano command can open the specified file for editing. By default, it will automatically break lines, that is, automatically split into several lines when too long content is entered in one line. However, some files are processed in this way. It may cause problems. For example, in the configuration file of the Linux system, automatic line breaking will cause the content that can only be written on one line to be broken into multiple lines, which may cause the system to malfunction. Therefore, if you want to avoid this situation, add the -w option.

nano features

• Small and friendly

• No installation required

• Provides many additional features

• Interactive find and replace

• Locate to specified row

• Auto-indent

• Feature switching

• International support

• Filename mark completion

Syntax

nano [选项] [[+行,列] 文件名]...

Options

• -h ,-? --help Display this information

• Rows, columns start from the indicated column number and row number

• -A --smarthome Enable smart HOME key

• -B --backup Store backup of existing files

• -C --backupdir= Used to store unique files Directory of backup files

• -D --boldtext Use bold instead of color inversion

• -E --tabstospaces Replace the entered system Convert table characters to blank

• -F --multibuffer Enable multiple file buffer function

• -H --historylog Record and read search /Replaced historical string

• -I --ignorercfiles Do not refer to nanorc files

• -K --rebindkeypad Fix numeric keypad key confusion Problem

• -L --nonewlines Do not add newlines to the end of the file

• -N --noconvert Do not convert from DOS/Mac format

• -O --morespace Use one more line when editing

• -Q --quotestr= Quote representative string

• -R --restricted restricted mode

• -S --smooth scroll by row instead of half screen

• -T --tabsize= Set the tab width to #number of columns

• -U --quickblank Flash the status line quickly

• -V --version Show version information and exit

• -W --wordbounds Detect word boundaries more accurately

• -Y --Syntax= Syntax definition for highlighting

• -c --const Continuously display cursor position

• -d --rebinddelete Fix backspace key/ Delete key confusion problem

• -i --autoindent Automatically indent new lines

• -k --cut Cut from the cursor to the end of the line

• -l --nofollow Do not follow symbolic links, but overwrite them

• -m --mouse Enable mouse function

• -o --operatingdir= Set operating directory

• -p --preserve Preserve XON (^Q) and XOFF (^S) buttons

• -q --quiet Silently ignore startup problems, such as rc file errors

• -r --fill= Set the wrap width to # number of columns

• -s --speller= Enable alternative spell checker

• -t --tempfile Automatically save on exit, don't prompt

• -u --undo Allow universal undo [Experimental feature]

• -v --view View (read-only) mode

• -w --nowrap Do not automatically wrap lines

• -x --nohelp Do not display the auxiliary area

• - z --suspend Enable suspension function

• -$ --softwrap Enable soft newline

• -a,-b,-e,

• -f,-g,-j (ignored for compatibility with pico)

Run nano

Two ways to run nano

• ① Directly enter nano

• ②nano followed by the target file nano /path /to/filename

After nano is successfully run, as shown below

You can see the version number of nano and the file being edited at the top Whether the name and file have changed since the last save

If you open a new file, New File will be prompted. The explicit message here is not fixed, but mainly displays information related to the program that performs the function.

The last two lines are shortcut keys

Shortcut keys

Although nano lists the most commonly used one in the last two lines Group functions, but there are many other functions that are not listed. Please note that Shift is not used as a shortcut key in nano, so ^G is not equivalent to Ctrl Shift G, but Ctrl G

Ctrl O: Save file

Ctrl R: Miscellaneous current file Insert the content of another file into

Ctrl C: Cancel the previous command

Ctrl X: Exit nano, you will be prompted whether to save

Ctrl C: The current cursor position

Ctrl F: →

Ctrl B: ←

Ctrl P: ↑

Ctrl N: ↓

Ctrl A: One line The beginning of a line

Ctrl E: The end of a line

Ctrl V: Turn one page forward

Ctrl Y: Turn one page backward

nano use

1. New file/open file

nano file name	Open an old file or a new file For editing, that is, you can open the file regardless of whether it exists or not

## Enter

nano nano.txt# in the terminal ##Command:

2. Online help

##^GGet online help

Rewritten sentence: The purpose of the nano editor is to simulate UW Pico text editing functionality and ease of use. The editor has four main sections. The top line shows the program version, the name of the current file being edited, and whether the file has been modified. Next is the main editor window, showing the file being edited. The status line is the third line from the bottom and displays important messages. The bottom two rows show the most commonly used shortcuts in the editor. Shortcuts are represented as follows: Control key sequences are represented by the comma (^) symbol and can be entered using the Control (Ctrl) key or by pressing the Escape (Esc) key twice. The escape key sequence is represented by the Meta (M-) symbol and can be entered using the Esc, Alt, or Meta keys, depending on the keyboard settings. Alternatively, you can press the Esc key twice and then enter three decimal digits (from 000 to 255) to enter the characters for the corresponding value.

3. Save the file

^OSave the file (provided you have permission to edit the file)

4. Exit nano

^XExit nano, if you have modified the file, you will be prompted whether you need to save it

5. Query characters String

^W to query the string, continue to enter ^W and press Enter to find the next 6. Cursor information

^CDescribes the number of rows and columns where the cursor is currently located

7. Move the cursor

^-Enter the line number and let the cursor quickly move to the line

8. Move to File header/tail

CommandFunction^YMove the cursor to the beginning of the file^VMove the cursor to the end of the file

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