Task:
Design an attendance simulation program to implement the following function selection interface, requiring the use of functions
1. Sign in at work
2. Check out after work
3. Check absence information
4. Exit
After the attendance program runs, the user is prompted to input the above function selection, and the user name and password input by the user are verified; the user information is stored in userinfo.dat .
If it is a work check-in, record the check-in information. If the check-in time is greater than 8:00 am , the user will be prompted to be late, and the lateness information will be recorded in check.dat .
If it is to check out after work, record the check-out information. If the check-out time is less than 6:00 pm , prompt the user to leave early, and record the early leave information to check.dat .
If the user chooses to query the absence information, the late arrival and early departure information corresponding to the user in check.dat will be found out and displayed.
After the user selects the function to execute, the shell program continues to return to the function selection interface and waits for the next user to operate.
Code:
1 #!/usr/bin/ env bash 2 # Attendance simulation program 3 #Author: Yu Xiuyan 4 # date 2018 / 04 / 08 5 function main(){ 6 echo " ----------- ------------------------------------------------- " 7 echo " Welcome to the attendance program! " 8 echo " -------------------------------------- ---------------------- " 9 10 createInfoFile; 11 12 read -p "Please enter your username: " username 13 read -p " Please enter your password: " password 14 15 isLogin $username $password; 16 17 while [[ 1 == 1 ]]; 18 do 19 menu; 20 read -p " Please enter your choice: " choice 21 case $choice in 22 1 ) 23 signIn $username; 24 ;; 25 2 ) 26 logOff $username; 27 ;; 28 3 ) 29 absenceConsult $username; 30 ;; 31 4 ) 32 exit1; 33 ;; 34 * ) 35 echo -e " Please select function 1 or 2 or 3 or 4!\n " 36 ;; 37 esac 38 done 39 40 } 41 #menu 42 function menu(){ 43 echo " ------------------------------------------------ ------------ " 44 echo " 1. Check in at work " 45 echo " 2. Check out after work " 46 echo " 3. Check absence information " 47 echo " 4. Exit " 48 echo " - -------------------------------------------------- --------- " 49 } 50 51 #Check account password 52 function isLogin(){ 53 while read line 54 do 55 if [[ " $line " == " $1:$2 " ]]; then 56 return 0 57 fi 58 done < userinfo.dat #Read 59 from the file echo "The username or password is incorrect, Please re-enter " 60 read -p " Please enter your account: " username 61 read -p " Please enter your password: " password 62 isLogin $username $password; 63 } 64 65 #Sign in at work 66 function signIn(){ 67 hour=` date +% H` 68 if [[ $hour -gt 8 ]]; then 69 echo " You are late for work! The lateness information has been recorded in check .dat. " 70 echo " $1 late for work ------ date: `date` " >> check.dat 71 else 72 echo " check in to work successfully! " 73 fi 74 main; 75 } 76 77 #move out after work 78 function logOff(){ 79 echo " Check out after work successfully! " 80 hour=` date +% H` 81 if [[ $hour -lt 18 ]]; then 82 echo " You are leaving early now! The early leave information has been recorded In check.dat. " 83 echo " $1 leave work early -- date: `date` " >> check.dat 84 fi 85 main; 86 } 87 88 #absence check 89 function absenceConsult(){ 90 cat check. dat| grep-n " $1 " 91 92 } 93 94 #Exit the program 95 function exit1(){ 96 exit 0 97 } 98 99 #Create a configuration file 100 function createInfoFile(){ 101 if [[ ! -e userinfo.dat ]]; then 102 touch userinfo.dat #Save username and password 103 chmod 777 userinfo.dat 104 fi 105 if [[ ! -e check.dat ]]; then 106 touch check.dat #Save late arrival and early departure information 107 chmod 777 check.dat 108 fi 109 110 } 111 112 #Execute the main function 113 main
result:
