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Full Discussion: Shell script - Replace just part of a single line in a file.....
Top Forums Shell Programming and Scripting Shell script - Replace just part of a single line in a file..... Post 302743431 by hxdrummerxc on Wednesday 12th of December 2012 08:50:40 PM
Old 12-12-2012
Shell script - Replace just part of a single line in a file.....
Hey guy's....

I new here,
But im working on a school project, and I am not really good at programming. In fact, this is the only programming class that I need because programming is not what I am majoring in.

But I have everything done in this shell script except for this last part.....

Basically I have a file of an employee record book,
Formatted like so:
Firstname Lastname Phone OnCallDay

ex:
Henry Test 000-000-0000 Wed

There are more people in my file though. I have a shell script made to make changes to the record book. (add, delete records). But I need to add to my shell script, to let a person change a record's on call day.

It must only prompt the user for the person's name, and then the new on call day. It can not ask for the user's old on call day. So I really have no idea I would search for just a part of a line. Like is there is some way to just edit the last 3 characters of a given line?

Also two people cannot have the same on call day. (I have already figured this part out)

Here is that part of the script so far:
Code:
echo "Enter the name of the employee, to change their on-call day: "
read name
echo "enter new on call day: "
read newday
days=`grep $newday phonebook | wc -l`   #This is to check availability day
if [ $days -ne 0 ]
then
   echo "Sorry there is already an employee on call for that day"
   exit
else
   and this is where I would need to somehow pull the previous day (Mon,wed,Tue,Thu,Fri,Sat,Sun) out of a line and change it to the $newday. But I have no idea where to start

I know that I would start here by doing a grep to search for the person's line. But then I need to change the 3char on-call day of that line.....


Could anyone help me figure this last part out?
Any help would be greatly appreciated.....
Thanks a lot
Last edited by hxdrummerxc; 12-12-2012 at 09:57 PM..
 

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LEARN ABOUT SUSE

holidays

holidays(4)							   File Formats 						       holidays(4)

NAME

       holidays - prime/nonprime table for the accounting system

SYNOPSIS

       /etc/acct/holidays

DESCRIPTION

       The   /etc/acct/holidays file describes which hours are considered prime time and which days  are holidays.  Holidays and weekends are con-
       sidered non-prime time hours.  /etc/acct/holidays is used by the accounting system.

       All lines beginning with an "*" are comments.

       The  /etc/acct/holidays file consists of two sections.  The first non-comment line defines the current year and the start time of prime and
       non-prime time hours, in the form:

       current_year	 prime_start	  non_prime_start

       The remaining non-comment lines define the holidays in the  form:

       month/day     company_holiday

       Of these two fields, only the  month/day is actually used by  the accounting system programs.

       The  /etc/acct/holidays file must be updated each year.

EXAMPLES

       Example 1: Example of the /etc/acct/holidays file.

       The following is an example of the /etc/acct/holidays file:

       * Prime/Nonprime Table for the accounting system
       *
       * Curr	  Prime     Non-Prime
       * Year	  Start     Start
       *
	 1991	  0830	   1800
       *
       * only the first column (month/day) is significant.
       *
       * month/day    Company Holiday
       *
	 1/1	      New Years Day
	 5/30	      Memorial Day
	 7/4	      Indep. Day
	 9/5	      Labor Day
	 11/24	      Thanksgiving Day
	 11/25	      day after Thanksgiving
	 12/25	      Christmas
	 12/26	      day after Christmas

SEE ALSO

       acct(1M)

SunOS 5.10							    28 Mar 1991 						       holidays(4)
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