Shell script: A simple score recording system

Directly on the code:

#mcore. Sh#!bin/bashfunction colour () {case $1 inblack_white)  echo -e  "\033[40;37m ";; Black_green) echo -e  "\033[40;32m";; Black_cyan) echo -e  "\033[40;36m";; Red_yellow) echo -e  "\033[41;33m";; Yellow_blue) echo -e  "\033[43;34m";; Esac}function search () {colour black_whiteclearecho -e  "please enter name  >>>\c "read nameif [ ! -f ./record ]; thenecho " You must  have some scores before you can search "Sleep 2clearreturn fiif  [ -z  "$NAME"  ]; thenecho  "you didn t enter a name!" echo -e  "please enter name >>>\c" read namefigrep -i  "$NAME"  ./record 2> /dev/nullcase  "$?"  in1) echo  "Name not in record";; 2)  echo  "You didin t enter a name to search "search;; Esac}function add () {clearecho  "Enter name and score of a record" Echo  -e  "\c" If [ ! -f ./record ];thentouch recordfiread newnameecho   "$NEWNAME"  >./recordsort -o ./record ./record}function delete () {Clearecho  -m  "Please enter name >>\c" read nameif [ ! -f ./ record ];thenecho  "This name is not in record" elsecp record  record.bakrm -f recordgrep -v  "$NAME"  ./record.bak > recordrm -f  record.bakfi}function display () {Colour black_whitemore ./record}function edit () {VI  ./record}function help () {clearcolour black_cyanecho  "this is a student  s record program by lunix shell language "}function quit () {Clearcolour black_whiteexit}clearwhile truedo colour red_yellowecho  "************************ "echo " *student s record menu                  * "echo " ************************************* "colour yellow_blueecho " **************************************** "echo " *1:search a  record                      * "echo " *2:add a record                         * "Echo   "*3:delete a recore                      * "echo " *4:dispaly all records                   * "echo " *5:edit record witm  vi                  * "echo " *h:help screen                          * "echo " *Q:exit program                          * "echo " **************************************** "Colour black_ greenecho -e -n  "\tplease enter you choice 1--5,h,q:\c" read CHOICEcase   $CHOICE  in1)  search;; 2)  add; clear;; 3)  delete; clear;; 4)  display;; 5)  edit; clear;; H | H)  help;; Q | Q)  quit;; *) echo  "Invalid choice"; sleep 2;clear;; Esacdone

Operation Result:

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Shell script: A simple score recording system