/usr/bin/vi

File Tree Extract

/                            root directory of the file system
.  etc/                      directory of administrative files
.  .  vi.exrc                system-wide vi(1) startup file
.  tmp/                      directory for temporary files
.  usr/                      directory of non-critical system files
.  .  bin/                   "add-on set" of user commands
.  .  .  ex                  executable for ex(1)
.  .  .  nvi                 executable for nvi(1)
.  .  .  nview               executable for nview(1)
.  .  .  vi                  executable for vi(1)
.  .  .  view                executable for view(1)
.  .  obj/                   generated files from system build
.  .  .  usr/                placeholder for /usr
.  .  .  .  src/             placeholder for /usr/src
.  .  .  .  .  usr.bin/      generated files for /usr/bin/*
.  .  .  .  .  .  vi/        generated files for /usr/bin/vi
.  .  .  .  .  usr.sbin/     generated files for /usr/sbin/*
.  .  .  .  .  .  vipw/      generated files for /usr/sbin/vipw
.  .  sbin/                  directory of "non-critical" admin. commands
.  .  .  vipw                executable for vipw(8)
.  .  share/                 architecture-independent files
.  .  .  vi/                 vi(1) reference files and scripts
.  .  .  .  catalog/         message catalogs for vi(1)
.  .  .  .  perl/            perl(1) scripts for vi(1)
.  .  .  .  tcl/             tcl(1) scripts for vi(1)
.  .  src/                   system build directories
.  .  .  contrib/            contributed (non-BSD) source code
.  .  .  .  nvi/             source code for nvi(1)
.  .  .  usr.bin/            build directories for /usr/bin/*
.  .  .  .  vi/              build directory for /usr/bin/vi
.  .  .  usr.sbin/           build directories for /usr/sbin/*
.  .  .  .  vipw/            build directory for /usr/sbin/vipw
.  var/                      directory for transient system data
.  .  tmp/                   directory for temporary files
.  .  .  vi.recover/         default directory for recovery files

$HOME/                       user's "home directory"
.  .exrc                     ex/vi initialization file
.  .nexrc                    nex/nvi initialization file
    

Documentation

ctags(1) - create a tags file
ex(1), vi(1), view(1) - text editors
more(1) - ASCII file browser
perl(1) - Practical Extraction and Report Language
sh(1) - command interpreter (shell)
vim(1) - Vi IMproved, a programmers text editor
curses(3) - CRT screen handling and optimization package
dbopen(3) - database access methods
vipw(8) - edit the password file

An Introduction to Display Editing with Vi
Edit: A Tutorial
Ex Quick Reference
Vi Command & Function Reference
Vi/Ex Reference Manual