diff --git a/README.md b/README.md
index 26a14b7..a847759 100644
--- a/README.md
+++ b/README.md
@@ -41,7 +41,7 @@ since it is better if they are handled by external tools.
 
 See [releases](https://github.com/gokcehan/lf/releases) for pre-built binaries.
 
-If you like to build from the source, you can use:
+If you like to build from the source:
 
     go get -u github.com/gokcehan/lf
 
diff --git a/etc/lf.sh b/etc/lf.sh
index c23a1ca..29b7a42 100644
--- a/etc/lf.sh
+++ b/etc/lf.sh
@@ -1,13 +1,16 @@
-# change the directory to last dir on exit
-# adapted from the similar script for ranger
+# Change working dir in shell to last dir in lf on exit (adapted from ranger).
 #
-# you need to add something like the following to your shell rc file (e.g. ~/.bashrc):
+# You need to either copy the content of this file to your shell rc file
+# (e.g. ~/.bashrc) or source this file directly using something like:
+#
+#     LFSH="$GOPATH/src/github.com/gokcehan/lf/etc/lf.sh"
+#     if [ -f "$LFSH" ]; then
+#         source "$LFSH"
+#     fi
+#
+# You may also like to assign a key to this command:
 #
-# LFSH="$GOPATH/src/github.com/gokcehan/lf/etc/lf.sh"
-# if [ -f "$LFSH" ]; then
-#     source "$LFSH"
 #     bind '"\C-o":"\C-ulf\C-m"'
-# fi
 #
 
 lf () {
diff --git a/etc/lf.vim b/etc/lf.vim
index 2bc7998..9efe59e 100644
--- a/etc/lf.vim
+++ b/etc/lf.vim
@@ -1,16 +1,19 @@
-" use lf to select and open a file in vim
-" adapted from the similar script for ranger
+" Use lf to select and open a file in vim (adapted from ranger).
 "
-" you need to add something like the following to your ~/.vimrc:
+" You need to either copy the content of this file to your ~/.vimrc or source
+" this file directly using something like:
 "
-" let lfvim = $GOPATH . "/src/github.com/gokcehan/lf/etc/lf.vim"
-" if filereadable(lfvim)
-"     exec "source " . lfvim
-"     nnoremap <leader>l :<c-u>StartLF<cr>
-" endif
+"     let lfvim = $GOPATH . "/src/github.com/gokcehan/lf/etc/lf.vim"
+"     if filereadable(lfvim)
+"         exec "source " . lfvim
+"     endif
+"
+" You may also like to assign a key to this command:
+"
+"     nnoremap <leader>l :<c-u>LF<cr>
 "
 
-function! StartLF()
+function! LF()
     let temp = tempname()
     exec 'silent !lf -selection-path=' . shellescape(temp)
     if !filereadable(temp)
@@ -28,4 +31,4 @@ function! StartLF()
     endfor
     redraw!
 endfunction
-command! -bar StartLF call StartLF()
+command! -bar LF call LF()
diff --git a/etc/lfrc.example b/etc/lfrc.example
index def443b..02b4784 100644
--- a/etc/lfrc.example
+++ b/etc/lfrc.example
@@ -1,20 +1,21 @@
 # mc alike mode (single column)
-# you may also consider setting an alias for automatically splitting windows in tmux
-# (e.g. "alias mc='tmux split -h lf; lf'")
+# You may also consider setting an alias to automatically split windows in tmux
+# (e.g. "alias mc='tmux split -h lf; lf'").
 #set ratios 1
 #set nopreview
 #set showinfo size
 
+# set shell interpreter accordingly
 # Some systems use more efficient shell implementations for non-interactive use
 # (e.g. `dash`) mapped to `/bin/sh`. By setting this option here we can tell
 # `lf` to use this implementation for shell commands. This can decrease the
 # startup times of commands but may also change the syntax that you are used to
 # (e.g. non-POSIX features provided by your regular shell).
-set shell /bin/sh
+#set shell /bin/sh
 
-# sets internal field seperator (IFS) to ':'
-# useful for interactive use to automatically split file names in $fs and $fx
-# things may behave unexpectedly so use with caution
+# set internal field seperator (IFS) to ':'
+# This is especially useful for interactive use to automatically split file
+# names in $fs and $fx. Things may behave unexpectedly so use with caution.
 #set ifs ':'
 
 # leave some space at the top and the bottom of the screen
@@ -46,7 +47,7 @@ map i $less "$f"
 map e $vim "$f"
 
 # mapping to spawn a shell in working directory
-# see also etc/lf.sh as an alternative workflow
+# (see also etc/lf.sh as an alternative workflow)
 map w $$SHELL
 
 # execute current file (must be executable)
@@ -57,9 +58,10 @@ map X !"$f"
 map o &mimeopen "$f"
 map O $mimeopen --ask "$f"
 
-# `open-file` is called by `open` when current file is not a directory
-# you may want to use either file extensions or mime types with `file`
-# below uses an editor for text files and a file opener for the rest
+# define a custom `open-file` command
+# `open-file` is called by `open` when current file is not a directory. You may
+# want to use either file extensions and/or mime types here. Below uses an
+# editor for text files and a file opener for the rest.
 cmd open-file ${{
     case $(file --mime-type "$f" -b) in
         text/*) IFS=':'; vim $fx;;
@@ -77,11 +79,11 @@ cmd usage $du -h . | less
 $mkdir -p $HOME/.trash
 
 # move current file or selected files to trash folder
-# see 'man mv' or 'mv --help' for backup options
+# (see 'man mv' or 'mv --help' for backup options)
 cmd trash $IFS=':'; mv --backup=numbered $fx $HOME/.trash
 
 # extract the current file with the right command
-# xkcd link: https://xkcd.com/1168/
+# (xkcd link: https://xkcd.com/1168/)
 cmd extract ${{
     case "$f" in
         *.tar.bz|*.tar.bz2|*.tbz|*.tbz2) tar xjvf "$f";;
@@ -93,9 +95,9 @@ cmd extract ${{
     esac
 }}
 
-# compress selected files with tar and gunzip
-# takes the name without '.tar.gz' suffix as an argument
-# (e.g. "compress foo" creates "foo.tar.gz")
+# compress marked files with tar and gunzip
+# This command takes the output name without '.tar.gz' suffix as an argument
+# (e.g. "compress foo" creates "foo.tar.gz").
 cmd compress ${{
     mkdir "$1"
     IFS=':'; cp $fs "$1"