vimh - Open Vim in help page directly from terminal (fzf edition)

vimh.sh

#!/bin/env bash

# vimh - Open Vim in help page directly from terminal (fzf edition)
# 
# Usage: 
#   If no argument is given, then a fuzzy finder search is initiated.
#
#   vimh [tag]
#   vimh ''
#   vimh '<c-p>'
#
# Note: The "vim_help_tags" path could be different on your system.  This
# script also requires the program "fzf".  An empty argument will show up main
# help entry.

# Modified script based on:
# Special thanks to Reddit user "duppy-ta".
# https://www.reddit.com/r/vim/comments/rdgjs9/simple_commandscript_to_open_vim_in_help_page/ho2tvyv/

vim_help_tags=/usr/share/vim/vim82/doc/tags

if [[ "$#" == 0 ]]
then
    [[ ! -f $vim_help_tags ]] && exit 1

    tag=$(fzf --cycle --sync --nth=1 --with-nth=1 < $vim_help_tags | cut -f1)

    if [[ ! "$tag" == "" ]]
    then
        vim -c ":help $tag | only"
    fi
else
    vim -c ":help $1 | only"
fi