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Full Discussion: Read numbers from file
Top Forums Shell Programming and Scripting Read numbers from file Post 302805437 by vish6251 on Friday 10th of May 2013 05:23:21 AM
Old 05-10-2013
Read numbers from file
I am trying to make a script to read marks from a file then find out how many of them are above 40 (passing marks). However my script is getting stuck at "read num". I dont understand whats the problem. Any help will be much appreciated.

Code:
#!/bin/bash
set -x
count=0; countP=0;  PASSMK=40
max=-1;  min=999999
tot=0;   avg=0
read num #read the first input number
while [ $num -ge 0 ]; do
  tot=$(($tot+$num))
  if [ $num -gt $max ]; then
    max=$num
  fi
  if [ $num -lt $min ]; then
    min=$num
  fi

  count=$(($count+1))
  if [ $num -ge $PASSMK ]; then
    countP=$(($countP+1));
  fi

  read num #read the next input number
done

if [ $count -gt 0 ]; then
  avg=$(($tot/$count))
fi
printf "entries\tpasses\tmax\tmin\tavg\n"
printf "%d\t%d\t%d\t%d\t%d\n" "$count" "$countP" "$max" "$min" "$avg"

Last edited by vish6251; 05-10-2013 at 06:59 AM..
 

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LEARN ABOUT CENTOS

installsieve

INSTALLSIEVE(1) 					      General Commands Manual						   INSTALLSIEVE(1)

 *

NAME

       installsieve - user utility for managing sieve scripts

SYNOPSIS

       installsieve

DESCRIPTION

       installsieve is a utility that allows users to manage their sieve scripts kept on the server.

OPTIONS

       -v <name> View script with the given name. The script if retrieved sucessfully is output to standard output.

       -l  List  all  of  the scripts currently on the server. If one of the scripts is active a arrow is printed indicating that it is the active
       script.

       -p <port> Port to connect to. If left off this defaults to "sieve" as defined in /etc/services.

       -i <file> Install a file onto the server. If a script with the same name already exists on the server it is overwritten.  Upon  sucessfully
       putting	the  script on the server the script is set active. If <file> has the extension .script it is chopped when put on the server since
       sieve names may not contain a '.'.

       -a <name> Set <name> as the active script. The list of available names can be obtained from the '-l' option..

       -d <name> Delete the sieve script on the server with <name>.

       -m <mechanism> Force installsieve to use <mechanism> for authentication. If not specified the strongest authentication mechanism is chosen.

       -g <name> Get the sieve script with <name> and save it to disk with a ".script" extension. If a file with that name already  exists  it	is
       overwritten.

       -u <user> Userid/Authname to use for authentication; by default, the current user.

CMU
								   Project Cyrus						   INSTALLSIEVE(1)
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