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شنبه, ۱۱ شهریور ۱۳۹۶، ۱۰:۵۷ ق.ظ
#!/bin/bash
# A menu driven shell script sample template
## ----------------------------------
# Step #1: Define variables
# ----------------------------------
EDITOR=vim
PASSWD=/etc/passwd
RED='\033[0;41;30m'
STD='\033[0;0;39m'
# ----------------------------------
# Step #2: User defined function
# ----------------------------------
pause(){
read -p "Press [Enter] key to continue..." fackEnterKey
}
one(){
echo "one() called"
pause
}
# do something in two()
two(){
echo "two() called"
pause
}
# function to display menus
show_menus() {
clear
echo "~~~~~~~~~~~~~~~~~~~~~"
echo " M A I N - M E N U"
echo "~~~~~~~~~~~~~~~~~~~~~"
echo "1. Set Terminal"
echo "2. Reset Terminal"
echo "3. Exit"
}
# read input from the keyboard and take a action
# invoke the one() when the user select 1 from the menu option.
# invoke the two() when the user select 2 from the menu option.
# Exit when user the user select 3 form the menu option.
read_options(){
local choice
read -p "Enter choice [ 1 - 3] " choice
case $choice in
1) one ;;
2) two ;;
3) exit 0;;
*) echo -e "${RED}Error...${STD}" && sleep 2
esac
}
# ----------------------------------------------
# Step #3: Trap CTRL+C, CTRL+Z and quit singles
# ----------------------------------------------
trap '' SIGINT SIGQUIT SIGTSTP
# -----------------------------------
# Step #4: Main logic - infinite loop
# ------------------------------------
while true
do
show_menus
read_options
done
Save and close the file. Run it as follows:
chmod +x menu.sh
./menu.sh
Sample outputs: