Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Expr: non-integer argument
Top Forums Shell Programming and Scripting Expr: non-integer argument Post 302863015 by Natalie on Friday 11th of October 2013 07:53:23 PM
Old 10-11-2013
Expr: non-integer argument
This is my code.... It works correct, but does not work with 4 and 5. My program is about finding average. so when i run 4 5 it gives me error "expr: non-integer argument".
But when i say sh average 45 67 it works. Whats wrong?how to fix it?

Code:
sum=0
n=0

if [ $# -gt 0 ]
then
for i in $*
do
     if [ -f $i ]
        then
        while read line
              do
              for j in $line
                   do
              n=`expr $n + 1`
              sum=`expr $sum + $j`
                   done
                   done< $i
      else
              sum=`expr $sum + $i`
              n=`expr $n + 1`  
      fi
      done
 else        
      while read line 
      do
      for j in $line
      do
      n=`expr $n + 1`
     sum=`expr $sum + $j` 
     
      done
     done
    fi 
   average=`expr $sum / $n`
     echo $average

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

expr+float argument: how can i do?

Hi everybody, I want to know how can i use the command 'expr' to manipulate float number , i have a shell bash and when (for example) i do: y1=`expr \( 1/ 16 \)` it returns 0 and if i do y1=`expr \( 1.6 / 16 \)` it returns non numeric argument. is there another command for mathematic... (4 Replies)
Discussion started by: mips
4 Replies

2. Shell Programming and Scripting

Argument not recognized as integer

I need to accept a number of arguments at command line and print it in reverse order i use eval `echo x=$1` to capture the argument #! /bin/sh counter=0 while do eval `echo x=$1` arg$counter=$x counter=`expr $counter + 1` shift done but the error keeps... (1 Reply)
Discussion started by: scmay
1 Replies

3. Shell Programming and Scripting

expr: Integer argument too large

Hi all, In KSH, I have got an error message like, "expr: Integer argument too large" I received this error message when I mutiply two large values and displaying the resultant output. Is there any other altenative way to go with too large values? Kindly let me know asap... Thanks in... (12 Replies)
Discussion started by: iamgeethuj
12 Replies

4. Shell Programming and Scripting

how to add integer with expr?

i got a file called Marks The format of Marks is: 12345678 5 7 23456789 7 9 3 What can i do with a loop, read expr and echo command to produce a new file like below: 12345678:12 23456789:20 and also when we adding fewer than 3 value with expr, we need to change any null value for... (13 Replies)
Discussion started by: mingming88
13 Replies

5. Shell Programming and Scripting

expr: non-numeric argument

Hi all, i am facing the error "expr: non-numeric argument" when i use the expr command. Following is the expression which i want to execute HR=$(echo `date +%H`) MIN=$(echo `date +%M`) TOT_MIN=`expr "$HR" \* 60+$MIN` | bc echo $TOT_MIN Here I am being reported with the error expr:... (6 Replies)
Discussion started by: sparks
6 Replies

6. Shell Programming and Scripting

Non-integer argument in expr

i wrote this simple shell script #!/bin/bash read N1 read N2 expr $N1 + $N2 it work fine in bash and i add it on xinetd for some test but when i try to use in with telnet i got this error : ehsan@debian:~$ telnet 192.168.1.4 1234 Trying 192.168.1.4... Connected to 192.168.1.4.... (14 Replies)
Discussion started by: niasha
14 Replies

7. Shell Programming and Scripting

expr: An integer value was expected

Hi, I am trying to execute a simple script as below to compare a value from a file and copy that line based on a condition. while read line do code_check = `expr substr "$line" 6 1` if ; then echo "${line}" >> /temp/bill/push_updated.dat else echo "line ignored" fi done <... (8 Replies)
Discussion started by: ramkiran77
8 Replies

8. Shell Programming and Scripting

how to compare string integer with an integer?

hi, how to I do this? i="4.000" if ; then echo "smaller" fi how do I convert the "4.000" to 4? Thanks! (4 Replies)
Discussion started by: h0ujun
4 Replies

9. Shell Programming and Scripting

Getting error in bash script; expr $a + 1: integer expression expected

Hi, I am new to shell/bash script. I am trying to run below script #!/bin/bash a=0 b=10 if then echo "a is equal to be" else echo "a is not equal to be" fi MAX=10 while do echo $a a='expr $a + 1' done (1 Reply)
Discussion started by: Mallikgm
1 Replies

10. Shell Programming and Scripting

Expr: non-numeric argument syntax error on line 1, teletype

Hi, I tried to look up the issue i'm experiencing, but i'm confused what's wrong with my script. After executing the script I'm getting the following error expr: non-numeric argument syntax error on line 1, teletype After some research, it seems that the problem relates to bc. I have... (1 Reply)
Discussion started by: nms
1 Replies

LEARN ABOUT SUNOS

sum

sum(1B) 					     SunOS/BSD Compatibility Package Commands						   sum(1B)

NAME

       sum - calculate a checksum for a file

SYNOPSIS

       /usr/ucb/sum file...

DESCRIPTION

       sum  calculates	and  displays a 16-bit checksum for the named file and displays the size of the file in kilobytes. It is typically used to
       look for bad spots, or to validate a file communicated over some transmission line. The checksum is calculated by an  algorithm	which  may
       yield different results on machines with 16-bit ints and machines with 32-bit ints, so it cannot always be used to validate that a file has
       been transferred between machines with different-sized ints.

USAGE

       See largefile(5) for the description of the behavior of sum when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       sum(1), wc(1), attributes(5), largefile(5)

DIAGNOSTICS

       Read error is indistinguishable from EOF on most devices; check the block count.

NOTES

       sum and /usr/bin/sum (see sum(1)) return different checksums.

       This utility is obsolete.

SunOS 5.10							    8 Nov 1995								   sum(1B)
All times are GMT -4. The time now is 12:46 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy