Vim

• Execute commands from vim

:! pwd
:! mkdir path/to/folder

• Search and replace

:%s/word_to\ search/words\ to\ replace\ with/g
:%s/word_to\ search/words\ to\ replace\ with/

• Split

# Horizontal
:vspl

# Vertical
:spl

• Buffers

# Next Buff
:bn

# Previous Buff
:bp

# Delete Buff
:bd