我最近安装了 Fedora 23 Server 版本的最小版本。我使用 VIM 作为编辑器，当我编辑任何不是新文件的文本文件时，我注意到一个奇怪的行为。
每当我用 VIM 打开任何现有的文本文件时，它就像自动执行击键序列一样sg<esc>。这是我第一次看到这样的事情。
注意：所有这些都发生在 ssh 会话中。
造成这种奇怪行为的原因是什么？
如果您可能感兴趣，这是 vim --version 的输出。
$ vim --version
VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Apr 8 2016 14:13:25)
Included patches: 1-1718
Modified by <[email protected]>
Compiled by <[email protected]>
Huge version without GUI. Features included (+) or not (-):
+acl +farsi +mouse_netterm +tag_binary
+arabic +file_in_path +mouse_sgr +tag_old_static
+autocmd +find_in_path -mouse_sysmouse -tag_any_white
-balloon_eval +float +mouse_urxvt -tcl
-browse +folding +mouse_xterm +terminfo
++builtin_terms -footer +multi_byte +termresponse
+byte_offset +fork() +multi_lang +textobjects
+channel +gettext -mzscheme +timers
+cindent -hangul_input +netbeans_intg +title
-clientserver +iconv +packages -toolbar
-clipboard +insert_expand +path_extra +user_commands
+cmdline_compl +job +perl +vertsplit
+cmdline_hist +jumplist +persistent_undo +virtualedit
+cmdline_info +keymap +postscript +visual
+comments +langmap +printer +visualextra
+conceal +libcall +profile +viminfo
+cryptv +linebreak +python/dyn +vreplace
+cscope +lispindent +python3/dyn +wildignore
+cursorbind +listcmds +quickfix +wildmenu
+cursorshape +localmap +reltime +windows
+dialog_con +lua/dyn +rightleft +writebackup
+diff +menu +ruby/dyn -X11
+digraphs +mksession +scrollbind -xfontset
-dnd +modify_fname +signs -xim
-ebcdic +mouse +smartindent -xsmp
+emacs_tags -mouseshape +startuptime -xterm_clipboard
+eval +mouse_dec +statusline -xterm_save
+ex_extra +mouse_gpm -sun_workshop -xpm
+extra_search -mouse_jsbterm +syntax
system vimrc file: "/etc/vimrc"
user vimrc file: "$HOME/.vimrc"
2nd user vimrc file: "~/.vim/vimrc"
user exrc file: "$HOME/.exrc"
fall-back for $VIM: "/etc"
f-b for $VIMRUNTIME: "/usr/share/vim/vim74"
Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -O2 -g -pipe -Wall -Werror=format-security -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
Linking: gcc -L. -Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -fstack-protector -rdynamic -Wl,-export-dynamic -Wl,--enable-new-dtags -Wl,-z,relro -Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -L/usr/local/lib -Wl,--as-needed -o vim -lm -lnsl -lselinux -lncurses -lacl -lattr -lgpm -ldl -Wl,--enable-new-dtags -Wl,-z,relro -Wl,-z,relro -fstack-protector-strong -L/usr/local/lib -L/usr/lib64/perl5/CORE -lperl -lpthread -lresolv -lnsl -ldl -lm -lcrypt -lutil -lc
编辑：这是我的 /etc/vimrc 文件的内容
if v:lang =~ "utf8$" || v:lang =~ "UTF-8$"
set fileencodings=ucs-bom,utf-8,latin1
endif
set nocompatible " Use Vim defaults (much better!)
set bs=indent,eol,start " allow backspacing over everything in insert mode
"set ai " always set autoindenting on
"set backup " keep a backup file
set viminfo='20,\"50 " read/write a .viminfo file, don't store more
" than 50 lines of registers
set history=50 " keep 50 lines of command line history
set ruler " show the cursor position all the time
" Only do this part when compiled with support for autocommands
if has("autocmd")
augroup fedora
autocmd!
" In text files, always limit the width of text to 78 characters
" autocmd BufRead *.txt set tw=78
" When editing a file, always jump to the last cursor position
autocmd BufReadPost *
\ if line("'\"") > 0 && line ("'\"") <= line("$") |
\ exe "normal! g'\"" |
\ endif
" don't write swapfile on most commonly used directories for NFS mounts or USB sticks
autocmd BufNewFile,BufReadPre /media/*,/run/media/*,/mnt/* set directory=~/tmp,/var/tmp,/tmp
" start with spec file template
autocmd BufNewFile *.spec 0r /usr/share/vim/vimfiles/template.spec
augroup END
endif
if has("cscope") && filereadable("/usr/bin/cscope")
set csprg=/usr/bin/cscope
set csto=0
set cst
set nocsverb
" add any database in current directory
if filereadable("cscope.out")
cs add $PWD/cscope.out
" else add database pointed to by environment
elseif $CSCOPE_DB != ""
cs add $CSCOPE_DB
endif
set csverb
endif
" Switch syntax highlighting on, when the terminal has colors
" Also switch on highlighting the last used search pattern.
if &t_Co > 2 || has("gui_running")
syntax on
set hlsearch
endif
filetype plugin on
if &term=="xterm"
set t_Co=8
set t_Sb=m
set t_Sf=m
endif
" Don't wake up system with blinking cursor:
" http://www.linuxpowertop.org/known.php
let &guicursor = &guicursor . ",a:blinkon0"