Command menu (bash) .

gistfile1.txt

.bashrc :

#	folder,export PATH : Private path where the "type -p" command will find your own files.
#	source : Short .bashrc entry to make the original .bashrc more transparent. Custom settings and files in a separate directory. Easily portable, i.e. modular architecture.

folder=~/Downloads/bash && export PATH="$folder:$PATH" && source bash_settings



~/Downloads/bash/bash_settings :
(or "$folder"/bash_settings :

#	Command menu with multiple tabs.
#
#	fake readline (up and delete line) source :
#	https://stackoverflow.com/questions/18362837/how-to-display-and-refresh-multiple-lines-in-bash 
#	https://stackoverflow.com/questions/22322879/how-to-print-current-bash-prompt
#
#	fzf insert = edit source :
#	https://github.com/junegunn/fzf/wiki/examples#opening-files
#
#	neccesary packages :
#	coreutils : head, tail
#	ncurses : tput


#	List text files in the location specified in $folder. These can be moved from right to left.

files=("cmd.txt" "pacman.txt" "backup.txt" "hdd.txt" "swap.txt")
i=0


#	The "while, do, continue, done" is just a replacement for goto. Instead of goto, continue jumps to the beginning.
#	Source : https://stackoverflow.com/questions/9639103/is-there-a-goto-statement-in-bash
#	https://www.cyberciti.biz/faq/bash-infinite-loop/
#
#	Fzf --no-clear to avoid flicker.


function m {

while :
do

line=$(< $(type -p ${files[i]}) fzf --reverse --exact --no-color --no-info --expect=insert,right,left --no-clear)

#	fzf escape or ctrl-c
if [ "$line" = "" ]
then 
#	restore screen (fzf --no-clear) and fake readline (up and delete line)
tput rmcup && tput cuu1 && tput el
return

fi

key=$(head -1 <<< "$line")

if [ "$key" = right ]
then
i=$(( i+1 ))


	if [ $i -gt 4 ]
	then
	i=0
	fi

continue

fi

if [ "$key" = left ]
then
i=$(( i-1 ))


	if [ $i -lt 0 ]
	then
	i=4
	fi

continue

fi

cmd=$(head -2 <<< "$line" | tail -1)

if [ "$key" = insert ] 
then
#	restore screen (fzf --no-clear) and fake readline (up and delete line)
tput rmcup && tput cuu1 && tput el
read -p "${PS1@P}" -eri "$cmd" cmd

fi

history -s "m"
history -s $cmd

#	restore screen (fzf --no-clear) and fake readline (up and delete line)
tput rmcup && tput cuu1 && tput el
echo "${PS1@P}"$cmd

eval $cmd

return

done

}