improve 'lf' config. Finally read the F. manual

private_dot_config/lf/lfrc

@@ -1,3 +1,51 @@
+# interpreter for shell commands
+set shell sh
+
+# set '-eu' options for shell commands
+# These options are used to have safer shell commands. Option '-e' is used to
+# exit on error and option '-u' is used to give error for unset variables.
+# Option '-f' disables pathname expansion which can be useful when $f, $fs, and
+# $fx variables contain names with '*' or '?' characters. However, this option
+# is used selectively within individual commands as it can be limiting at
+# times.
+set shellopts '-eu'
+
+# set internal field separator (IFS) to "\n" for shell commands
+# This is useful to automatically split file names in $fs and $fx properly
+# since default file separator used in these variables (i.e. 'filesep' option)
+# is newline. You need to consider the values of these options and create your
+# commands accordingly.
+set ifs "\n"
+
+# leave some space at the top and the bottom of the screen
+set scrolloff 10
+
+# Use the `dim` attribute instead of underline for the cursor in the preview pane
+set cursorpreviewfmt "\033[7;2m"
+
+# use enter for shell commands
+map <enter> shell
+
+# show the result of execution of previous commands
+map ` !true
+
+# mkdir command. See wiki if you want it to select created dir
+map a :push %mkdir<space>""<c-b>
+
+# use '<delete>' key for 'delete' command
 map <delete> delete
+
+set drawbox true
+set info size
+set dircounts
+
+# preview script from ranger
+set previewer ~/.config/lf/scopelf.sh
+map i $~/.config/lf/scopelf.sh $f | less -R
+
+# use S for opening a shell
 map S $zsh
 
+# clear mark from files after pasting
+map p : paste; clear
+