todo.sh

#!/bin/sh
DATA=~/shell/todo.csv
h(){
	echo 'h - help\np - print\nl - last\ni - insert\nd - delete\nw - write\nq - quit'
}
q(){
	exit
}
p(){
	printf '%2s %1s %-42s %-4s %-6s\n' 'id' 'p' 'polozka' 'doba' 'termin'
	hr
	awk -F ';' '{printf "%d;%d;%s;%d;%s\n",NR,$1,$2,$3,$4}'  $DATA | \
	sort -t ';' -k 2,2n -k 5.4,5.5n -k 5.1,5.2n -k 4,4n | \
	awk -F ';' '{printf "%2d %1d %-42s %4d %-6s\n",$1,$2,$3,$4,$5}'
}
l(){
	p | sed '3q;d'
}
i(){
	echo "item: ";read item
	echo 'priority [1-3]: ';read prior
	[ $prior -gt 3 ] && prior=3 || { [ $prior -lt 1 ] && prior=1; }
	echo -n 'duration (m): ';read duration
	echo -n 'date: ';read max_date
	echo "$prior;$item;$duration;$max_date" >> $DATA
}
w(){
	[ $# -ne 0 ] && p > $1 || echo '?'
}
d(){
	[ $# -eq 0 ] && ( echo -n 'id: ';read id ) || id=$1
	sed -i '' "${id}d" $DATA
}
hr(){
	echo '-----------------------------------------------------------'
}

while [ : ]
do
	read cmd
	case $cmd in
		[hipqwdl]*) $cmd;;
		*) echo '?';;
	esac
done