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I am creating an employee menu that will accept, update, search, display, and delete employee information. However, I can not seem to figure out how can I create a file that will let me update the employee’s specific information of my choosing using a shell script in vi. For instance, a employee got married and I need to go in and change his/her last name. Or the employee moved to a different city, and I need to go in a change the employee city.

Here's an example of my search file:

#!/bin/bash

#====================================================================

# Script Name:                  eemployee

# By:                           DT

# Date:                         11-06-2018

# Purpose:                      Searches for a specified employee in

#                               the employees file

#====================================================================

tumblingfile=~/CSCI3331/employees

  clear

  tput cup 5 1

  echo "Enter Employee-ID to search for: "

  tput cup 5 35

  read number

  echo

  grep $number $tumblingfile | tr ':' ' '

  echo

  echo "Press ENTER to continue..."

  read continue

Better to do with sed command or awk command

Below commands working as per data mentioned in employees. Change the column number as per your data

Otherwise post sample data here

employees



city office name firstname lastname

mysore hal praveen kumar yadav

bangalore ngef ajay kumar gowda

mangalore hcl san kumar gowda



command :



awk '/praveen/{$1="mandya";print}1' employees



Suppose if you want to change the city of  employee praveen above  is the command which you can use





output



city office name firstname lastname

mandya hal praveen kumar yadav

mandya hal praveen kumar yadav

bangalore ngef ajay kumar gowda

mangalore hcl san kumar gowda





Suppose if you want to change firstname you can use below command



 awk '/praveen/{$1="mandya";print}1' employees



output



city office name firstname lastname

mandya hal praveen kumar yadav

mandya hal praveen kumar yadav

bangalore ngef ajay kumar gowda

mangalore hcl san kumar gowda